Search

Your search keyword '"Blum, Marguerite"' showing total 106 results
Start Over Author "Blum, Marguerite"
106 results on '"Blum, Marguerite"'

1. OBSERVING LIFE IN THE SEA USING ENVIRONMENTAL DNA

Author

Chavez, Francisco P., Min, Markus, Pitz, Kathleen, Truelove, Nathan, Baker, Jacoby, LaScala-Grunewald, Diana, Blum, Marguerite, Walz, Kristine, Nye, Charles, Djurhuus, Anni, Miller, Robert J., Goodwin, Kelly D., Muller-Karger, Frank E., Ruhl, Henry A., and Scholin, Christopher A.

Published
2021

4. Gradients of bacteria in the oceanic water column reveal finely-resolved vertical distributions

Author

Harbeitner, Rachel C., Wittmers, Fabian, Yung, Charmaine C. M., Eckmann, Charlotte A., Hehenberger, Elisabeth, Blum, Marguerite, Needham, David M., Worden, Alexandra Z., Harbeitner, Rachel C., Wittmers, Fabian, Yung, Charmaine C. M., Eckmann, Charlotte A., Hehenberger, Elisabeth, Blum, Marguerite, Needham, David M., and Worden, Alexandra Z.

Abstract

Bacterial communities directly influence ecological processes in the ocean, and depth has a major influence due to the changeover in primary energy sources between the sunlit photic zone and dark ocean. Here, we examine the abundance and diversity of bacteria in Monterey Bay depth profiles collected from the surface to just above the sediments (e.g., 2000 m). Bacterial abundance in these Pacific Ocean samples decreased by >1 order of magnitude, from 1.22 ±0.69 ×106 cells ml-1 in the variable photic zone to 1.44 ± 0.25 ×105 and 6.71 ± 1.23 ×104 cells ml-1 in the mesopelagic and bathypelagic, respectively. V1-V2 16S rRNA gene profiling showed diversity increased sharply between the photic and mesopelagic zones. Weighted Gene Correlation Network Analysis clustered co-occurring bacterial amplicon sequence variants (ASVs) into seven subnetwork modules, of which five strongly correlated with depth-related factors. Within surface-associated modules there was a clear distinction between a ‘copiotrophic’ module, correlating with chlorophyll and dominated by e.g., Flavobacteriales and Rhodobacteraceae, and an ‘oligotrophic’ module dominated by diverse Oceanospirillales (such as uncultured JL-ETNP-Y6, SAR86) and Pelagibacterales. Phylogenetic reconstructions of Pelagibacterales and SAR324 using full-length 16S rRNA gene data revealed several additional subclades, expanding known microdiversity within these abundant lineages, including new Pelagibacterales subclades Ia.B, Id, and IIc, which comprised 4–10% of amplicons depending on the subclade and depth zone. SAR324 and Oceanospirillales dominated in the mesopelagic, with SAR324 clade II exhibiting its highest relative abundances (17±4%) in the lower mesopelagic (300–750 m). The two newly-identified SAR324 clades showed highest relative abundances in the photic zone (clade III), while clade IV was extremely low in relative abundance, but present across dark ocean depths. Hierarchical clustering placed microbial communities fro

Published
2024
Full Text
View/download PDF

5. Gradients of bacteria in the oceanic water column reveal finely-resolved vertical distributions

Author

Harbeitner, Rachel, Wittmers, Fabian, Yung, Charmaine, Eckmann, Charlotte, Hehenberger, Elisabeth, Blum, Marguerite, Needham, David, Worden, Alexandra, Harbeitner, Rachel, Wittmers, Fabian, Yung, Charmaine, Eckmann, Charlotte, Hehenberger, Elisabeth, Blum, Marguerite, Needham, David, and Worden, Alexandra

Abstract

Bacterial communities directly influence ecological processes in the ocean, and depth has a major influence due to the changeover in primary energy sources between the sunlit photic zone and dark ocean. Here, we examine the abundance and diversity of bacteria in Monterey Bay depth profiles collected from the surface to just above the sediments (e.g., 2000 m). Bacterial abundance in these Pacific Ocean samples decreased by >1 order of magnitude, from 1.22 ±0.69 ×106 cells ml-1 in the variable photic zone to 1.44 ± 0.25 ×105 and 6.71 ± 1.23 ×104 cells ml-1 in the mesopelagic and bathypelagic, respectively. V1-V2 16S rRNA gene profiling showed diversity increased sharply between the photic and mesopelagic zones. Weighted Gene Correlation Network Analysis clustered co-occurring bacterial amplicon sequence variants (ASVs) into seven subnetwork modules, of which five strongly correlated with depth-related factors. Within surface-associated modules there was a clear distinction between a ‘copiotrophic’ module, correlating with chlorophyll and dominated by e.g., Flavobacteriales and Rhodobacteraceae, and an ‘oligotrophic’ module dominated by diverse Oceanospirillales (such as uncultured JL-ETNP-Y6, SAR86) and Pelagibacterales. Phylogenetic reconstructions of Pelagibacterales and SAR324 using full-length 16S rRNA gene data revealed several additional subclades, expanding known microdiversity within these abundant lineages, including new Pelagibacterales subclades Ia.B, Id, and IIc, which comprised 4–10% of amplicons depending on the subclade and depth zone. SAR324 and Oceanospirillales dominated in the mesopelagic, with SAR324 clade II exhibiting its highest relative abundances (17±4%) in the lower mesopelagic (300–750 m). The two newly-identified SAR324 clades showed highest relative abundances in the photic zone (clade III), while clade IV was extremely low in relative abundance, but present across dark ocean depths. Hierarchical clustering placed microbial communities fro

Published
2024

7. Climate Variability and Change : Response of a Coastal Ocean Ecosystem

Author

Chavez, Francisco P., Pennington, J. Timothy, Michisaki, Reiko P., Blum, Marguerite, Chavez, Gabriela M., Friederich, Jules, Jones, Brent, Herlien, Robert, Kieft, Brian, Hobson, Brett, Ren, Alice S., Ryan, John, Sevadjian, Jeffrey C., Wahl, Christopher, Walz, Kristine R., Yamahara, Kevan, Friederich, Gernot E., and Messié, Monique

Published
2017

8. Eukaryotic algal community composition in tropical environments from solar salterns to the open sea

Author

Eckmann, Charlotte A., primary, Eberle, Jessica S., additional, Wittmers, Fabian, additional, Wilken, Susanne, additional, Bergauer, Kristin, additional, Poirier, Camille, additional, Blum, Marguerite, additional, Makareviciute-Fichtner, Kriste, additional, Jimenez, Valeria, additional, Bachy, Charles, additional, Vermeij, Mark J. A., additional, and Worden, Alexandra Z., additional

Published
2023
Full Text
View/download PDF

9. Eukaryotic algal community composition in tropical environments from solar salterns to the open sea

Author

Eckmann, Charlotte A., Eberle, Jessica S., Wittmers, Fabian, Wilken, Susanne, Bergauer, Kristin, Poirier, Camille, Blum, Marguerite, Makareviciute-Fichtner, Kriste, Jimenez-Thamm, Valeria, Bachy, Charles, Vermeij, Mark J. A., Worden, Alexandra Z., Eckmann, Charlotte A., Eberle, Jessica S., Wittmers, Fabian, Wilken, Susanne, Bergauer, Kristin, Poirier, Camille, Blum, Marguerite, Makareviciute-Fichtner, Kriste, Jimenez-Thamm, Valeria, Bachy, Charles, Vermeij, Mark J. A., and Worden, Alexandra Z.

Abstract

Tropical environments with unique abiotic and biotic factors—such as salt ponds, mangroves, and coral reefs—are often in close proximity. The heterogeneity of these environments is reflected in community shifts over short distances, resulting in high biodiversity. While phytoplankton assemblages physically associated with corals, particularly their symbionts, are well studied, less is known about phytoplankton diversity across tropical aquatic environments. We assess shifts in phytoplankton community composition along inshore to offshore gradients by sequencing and analyzing 16S rRNA gene amplicons using primers targeting the V1-V2 region that capture plastids from eukaryotic phytoplankton and cyanobacteria, as well as heterotrophic bacteria. Microbial alpha diversity computed from 16S V1-V2 amplicon sequence variant (ASV) data from 282 samples collected in and around Curaçao, in the Southern Caribbean Sea, varied more within the dynamic salt ponds, salterns, and mangroves, compared to the seemingly stable above-reef, off-reef, and open sea environments. Among eukaryotic phytoplankton, stramenopiles often exhibited the highest relative abundances in mangrove, above-reef, off-reef, and open sea environments, where cyanobacteria also showed high relative abundances. Within stramenopiles, diatom amplicons dominated in salt ponds and mangroves, while dictyochophytes and pelagophytes prevailed above reefs and offshore. Green algae and cryptophytes were also present, and the former exhibited transitions following the gradient from inland to offshore. Chlorophytes and prasinophyte Class IV dominated in salt ponds, while prasinophyte Class II, including Micromonas commoda and Ostreococcus Clade OII, had the highest relative abundances of green algae in mangroves, above-reef, off-reef, and the open sea. To improve Class II prasinophyte classification, we sequenced 18S rRNA gene amplicons from the V4 region in 41 samples which were used to interrelate plastid-based results wi

Published
2023
Full Text
View/download PDF

10. Accurate pH and O2 Measurements from Spray Underwater Gliders

Author

Takeshita, Yuichiro, primary, Jones, Brent D., additional, Johnson, Kenneth S., additional, Chavez, Francisco P., additional, Rudnick, Daniel L., additional, Blum, Marguerite, additional, Conner, Kyle, additional, Jensen, Scott, additional, Long, Jacqueline S., additional, Maughan, Thom, additional, Mertz, Keaton L., additional, Sherman, Jeffrey T., additional, and Warren, Joseph K., additional

Published
2021
Full Text
View/download PDF

11. IOCCP-JAMSTEC 2018 Inter-laboratory calibration exercise of a certified reference material for nutrients in seawater

Author

Aoyama, Michio, Abad, Mara, Aguilar-Islas, Ana, Ashraf P, Muhamed, Azetsu-Scott, Kumiko, Bakir, Adil, Becker, Susan, Benoit-Cattin-Breton, Alice, Berdalet, Elisa, Björkman, Karin, Blum, Marguerite, de Santis Braga, Elisabete, Caradec, Florian, Cariou, Thierry, Gonsalez Chiozzini, Vitor, Collin, Karine, Coppola, Laurent, Crump, Mike, Dai, Minhan, Daniel, Anne, Davis, Clare, Solis, Miriam Edith, Edelvang, Karen, Faber, David, Fidel, Robinson, Lunde Fonnes, Linda, Frank, Jerry, Frew, Pauline, Funkey, Carolina, and Gallia, Roberto

Subjects
INTERCALIBRACION, Oceanografía, Hidrología, Recursos Hídricos, NUTRIENTES, CIENCIAS NATURALES Y EXACTAS, Ciencias de la Tierra y relacionadas con el Medio Ambiente
Abstract

In 2017, the International Ocean Carbon Coordination Project (IOCCP) and the Japan Agency for Marine-Earth Science and Technology (JAMSTEC) decided to conduct the 6th International Inter-Calibration Exercise, the “2017/18 inter-laboratory comparison exercise of Certified Reference Materials of Nutrients in Seawater, CRM”. As was the case with the previous four inter-comparison (IC) studies organized by MRI-JMA and the previous IOCCCP-JAMSTEC IC exercise in 2015, the aim of this IC exercise was to improve the level of comparability by exchanging knowledge among participating laboratories. The scale of the study was expanded. One hundred seven laboratories in 33 countries across five continents received a letter of invitation to the IC exercise, and 71 laboratories in 30 counties agreed to participate in this IC exercise. Results were returned from 69 laboratories in 30 countries. The data were statistically analyzed, and the results are described in this report. The agreement between consensus median/mean and certified values was within uncertainty for all five samples used in this IC exercise. Only small discrepancies existed among core laboratories that reported close-to-consensus values and certified values. Normalized cumulative distributions for nitrate and phosphate obtained in 2018 were better (i.e., flatter) than the normalized cumulative distributions obtained from previous IC exercises conducted in 2008, 2012, and 2015. The indication is that comparability of nitrate and phosphate analysis among the laboratories has gradually improved from 2008 to 2018. In contrast with the nitrate and phosphate results, the normalized cumulative distribution for silicate obtained in 2018 was similar to the distributions in previous years. The indication is that comparability of silicate analysis among the laboratories has not changed during these years. The results of this IC exercise also showed that nonlinearity of the calibration curves for the nutrient analyses in each laboratory is still a significant source of reduced comparability of nutrient data. Analysis of ranked scatter plots led to this conclusion. The implication is that we need to use a set of nutrient CRMs, the concentrations of which cover the whole range of nutrient concentrations in the world’s oceans to maintain comparability of results. Thirty-eight laboratories among 69 laboratories used a CRM/RM. The remaining 31 laboratories did not use a CRM/RM or did not reply to the questionnaire. It is obvious that the number of the laboratories that use CRMs has been increasing since 2008. In general, the reported results from laboratories that used CRMs were located in the central part of the ranked plots and showed good Z-scores, as expected. The results of this IC exercise imply that the majority of the participating laboratories are very capable of measuring nutrient concentrations in seawater, and using CRMs will further increase the comparability of results. The results may be SI traceable in the near future. Fil: Aoyama, Michio. Fukushima University; Japón Fil: Abad, Mara. Consejo Superior de Investigaciones Científicas. Instituto de Ciencias del Mar; España Fil: Aguilar-Islas, Ana. University of Alaska; Estados Unidos Fil: Ashraf P, Muhamed. Central Institute of Fisheries Education. Fishing Technology Division; India Fil: Azetsu-Scott, Kumiko. Bedford Institute of Oceanography; Canadá Fil: Bakir, Adil. University of Portsmouth; Reino Unido Fil: Becker, Susan. University of California at San Diego. Scripps Institution of Oceanography; Estados Unidos Fil: Benoit-Cattin-Breton, Alice. Marine Research Institute; Islandia Fil: Berdalet, Elisa. Consejo Superior de Investigaciones Científicas. Instituto de Ciencias del Mar; España Fil: Björkman, Karin. University of Hawaii at Manoa; Estados Unidos Fil: Blum, Marguerite. Monterey Bay Aquarium Research Institute; Estados Unidos Fil: de Santis Braga, Elisabete. Universidade de Sao Paulo; Brasil Fil: Caradec, Florian. French Research Institute for Exploitation of the Sea; Francia Fil: Cariou, Thierry. Université Pierre et Marie Curie; Francia. Centre National de la Recherche Scientifique; Francia Fil: Gonsalez Chiozzini, Vitor. Universidade de Sao Paulo; Brasil Fil: Collin, Karine. French Research Institute for Exploitation of the Sea; Francia Fil: Coppola, Laurent. Centre National de la Recherche Scientifique; Francia Fil: Crump, Mike. National Institute of Water and Atmospheric Research; Nueva Zelanda Fil: Dai, Minhan. Xiamen University. Laboratory of Marine Environmental Science; China Fil: Daniel, Anne. French Research Institute for Exploitation of the Sea; Francia Fil: Davis, Clare. University of Liverpool; Reino Unido Fil: Solis, Miriam Edith. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Centro para el Estudio de Sistemas Marinos; Argentina Fil: Edelvang, Karen. Technical University of Denmark; Dinamarca Fil: Faber, David. University of California at San Diego. Scripps Institution of Oceanography; Estados Unidos Fil: Fidel, Robinson. Centro de Investigaciones Oceanográficas e Hidrográficas del Pacífico; Colombia Fil: Lunde Fonnes, Linda. Institute of Marine Research; Noruega Fil: Frank, Jerry. University of Maryland; Estados Unidos Fil: Frew, Pauline. Scottish Environment Protection Agency; Reino Unido Fil: Funkey, Carolina. University of Hawaii at Manoa; Estados Unidos Fil: Gallia, Roberto. Stazione Zoologica Anton Dohrn; Italia

Published
2018

12. Accurate pH and O2 Measurements from Spray Underwater Gliders.

Author

YUICHIRO TAKESHITA, JONES, BRENT D., JOHNSON, KENNETH S., CHAVEZ, FRANCISCO P., RUDNICK, DANIEL L., BLUM, MARGUERITE, CONNER, KYLE, JENSEN, SCOTT, LONG, JACQUELINE S., MAUGHAN, THOM, MERTZ, KEATON L., SHERMAN, JEFFREY T., and WARREN, JOSEPH K.

Subjects
UNDERWATER gliders, OCEAN acidification, PARTIAL pressure, ARAGONITE, SYSTEMS theory, SPANNING trees
Abstract

The California Current System is thought to be particularly vulnerable to ocean acidification, yet pH remains chronically undersampled along this coast, limiting our ability to assess the impacts of ocean acidification. To address this observational gap, we integrated the Deep-Sea-DuraFET, a solid-state pH sensor, onto a Spray underwater glider. Over the course of a year starting in April 2019, we conducted seven missions in central California that spanned 161 glider days and >1600 dives to a maximum depth of 1000 m. The sensor accuracy was estimated to be ± 0.01 based on comparisons to discrete samples taken alongside the glider (n = 105), and the precision was ± 0.0016. CO2 partial pressure, dissolved inorganic carbon, and aragonite saturation state could be estimated from the pH data with uncertainty better than ± 2.5%, ± 8 μmol kg-1, and ± 2%, respectively. The sensor was stable to ± 0.01 for the first 9 months but exhibited a drift of 0.015 during the last mission. The drift was correctable using a piecewise linear regression based on a reference pH field at 450 m estimated from published global empirical algorithms. These algorithms require accurate O2 as inputs; thus, protocols for a simple predeployment air calibration that achieved accuracy of better than 1% were implemented. The glider observations revealed upwelling of undersaturated waters with respect to aragonite to within 5 m below the surface near Monterey Bay. These observations highlight the importance of persistent observations through autonomous platforms in highly dynamic coastal environments. [ABSTRACT FROM AUTHOR]

Published
2021
Full Text
View/download PDF

19. IOCCP-JAMSTEC 2015 Inter-laboratory calibration exercise of a certified reference material for nutrients in seawater

Author

Aoyama Michio, Abad, Mara, Anstey, Carol, Ashraf, Muhamed, Bakir, Adil, Solis, Miriam Edith, Becker, Susan, Bell, Steven, Berdalet, Elisa, Blum, Marguerite, Briggs, Rebecca, Caradec, Florian, Cariou, Thierry, Church, Matt, Coppola, Laurent, Crump, Mike, Curless, Susan, Dai, Minhan, Daniel, Anne, Davis, Clare, de Santis Braga, Elisabete, Ekern, Lindsey, Faber, David, Fraser, Tamara, Gundersen, Kjell, Jacobsen, Sólvá, Knockaert, Marc, Komada, Taketoshi, Kralj, Martina, and Kramer, Rita

Subjects
SEAWATER, Otras Ciencias Naturales y Exactas, NUTRIENTS, CIENCIAS NATURALES Y EXACTAS
Abstract

The objective of this inter-laboratory calibration exercise is to evaluate and improve comparability of global nutrients data in the world ocean. IOCCP and JAMSTEC co-organized an inter-laboratory calibration exercise of nutrients in seawater using four lots of recently certified RM produced by KANSO and three CRMs provided by National Metrology Institute of Japan which are certified in Marine 2014. 71 laboratories in 28 countries had replied to the call for participants. Results were returned from 59 laboratories. Korean Institute of Ocean Science and Technology, KIOST, also offered to provide their recently developed RMs to this I/C exercise. The Royal Netherlands Institute for Sea Research, NIOZ, also offers to provide silicate stock solution to contribute to the overall assessment of results regarding with this I/C exercise. Mean, median and standard deviation were calculated, robust mean and standard deviation were also calculated. Successive t-tests at the 95% confidence level were applied to the results before estimating the consensus mean, consensus median, and consensus standard deviation. Z-scores were also calculated to evaluate the performance of laboratories as in the previous inter-comparison studies. The ranked concentration plots for a particular nutrient would be proportional and roughly parallel to each other for samples with different nutrient concentrations if each laboratory appropriately compensated for the non-linearity of the calibration curves. However there are non-proportional results from some laboratories for all of the determinants as well as observed in the previous I/C studies. These results indicate that non-linearity of the calibration curves for nutrient analysis is one of significant sources of less comparability of nutrients data. This implies that we need to use a set of CRM of which nutrients concentrations can cover whole range of measurements of nutrients concentration to keep comparability of whole range of nutrients concentration in the world ocean. It is clear that present comparability among the participants in 2015 I/C exercise is quite similar with previously obtained comparability in 2012 I/C study and previous I/C studies. Consensus standard deviations of all determinands are one order of magnitude large rather than homogeneity of the CRMs distributed and consensus standard deviations are about double of reported precision of measurements of the laboratories. Therefore these I/C results show that use of CRM will be able to greatly improve comparability of nutrient data among the laboratories of the world. There are good signal in the results that although consensus standard deviations are relatively large, consensus median/mean of each samples showed good agreement with certified values of the samples within consensus SDs. This implies that majority of the participating laboratories have good capability to measure nutrients concentration in seawater and using CRM will increase more on the comparability and could be their results to be SI traceable quickly. Fil: Aoyama Michio. Fukushima University; Japón Fil: Abad, Mara. Consejo Superior de Investigaciones Científicas. Instituto de Ciencias del Mar; España Fil: Anstey, Carol. CSIRO Marine and Atmospheric Research; Australia Fil: Ashraf, Muhamed. Central Institute of Fisheries Technology; India Fil: Bakir, Adil. University of Portsmouth; Reino Unido Fil: Solis, Miriam Edith. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina Fil: Becker, Susan. University of California at San Diego. Scripps Institution of Oceanography; Estados Unidos Fil: Bell, Steven. Bermuda Institute of Ocean Science; Bermudas Fil: Berdalet, Elisa. Consejo Superior de Investigaciones Científicas. Instituto de Ciencias del Mar; España Fil: Blum, Marguerite. Monterey Bay Aquarium Research Institute; Estados Unidos Fil: Briggs, Rebecca. SOEST Laboratory for Analytical Biogeochemistry. University of Hawaii; Estados Unidos Fil: Caradec, Florian. Ifremer; Francia Fil: Cariou, Thierry. Université Pierre et Marie Curie; Francia. Centre National de la Recherche Scientifique; Francia Fil: Church, Matt. Hawaii Ocean Time-series; Estados Unidos Fil: Coppola, Laurent. Centre National de la Recherche Scientifique; Francia Fil: Crump, Mike. National Institute of Water and Atmospheric Research; Nueva Zelanda Fil: Curless, Susan. Hawaii Ocean Time-series; Estados Unidos Fil: Dai, Minhan. Xiamen University. State Key laboratory of Marine Environmental Science; China Fil: Daniel, Anne. Ifremer; Francia Fil: Davis, Clare. University of Liverpool; Reino Unido Fil: de Santis Braga, Elisabete. Universidade de Sao Paulo; Brasil Fil: Ekern, Lindsey. University of California at San Diego. Scripps Institution of Oceanography; Estados Unidos Fil: Faber, David. University of California at San Diego. Scripps Institution of Oceanography; Estados Unidos Fil: Fraser, Tamara. Fisheries And Ocean Canada; Canadá Fil: Gundersen, Kjell. Institute of Marine Research; Noruega Fil: Jacobsen, Sólvá. Faroe Marine Research Institute; Dinamarca Fil: Knockaert, Marc. Directorate Natural Environment. Ecosystems Physico-Chemistry; Bélgica Fil: Komada, Taketoshi. University Of Tartu.; Estonia Fil: Kralj, Martina. Istituto Nazionale di Oceanografía e Geofísica Sperimentale; Italia Fil: Kramer, Rita. Bundesamt für Seeschifffahrt und Hydrographie. Laboratorium Sülldorf; Alemania

Published
2016

21. Time series assessment of Thaumarchaeotaecotypes in Monterey Bay reveals the importance of water column position in predicting distribution–environment relationships

Author

Tolar, Bradley B., Reji, Linta, Smith, Jason M., Blum, Marguerite, Pennington, J. Timothy, Chavez, Francisco P., and Francis, Christopher A.

Abstract

Nitrification plays a key role in marine ecosystems where Thaumarchaeotaare thought to be responsible for most of the ammonia oxidation in the water column. Over a 2‐yr, near‐monthly time series at two sites in Monterey Bay we observed repeatable seasonal and depth‐based patterns of Thaumarchaeotaecotype abundance that highlighted a clear delineation between populations in shallow euphotic (< 50 m) vs. deeper mesopelagic (60–500 m) depths. Euphotic depths show greater seasonality and influence from light, while mesopelagic waters have trends based on water mass and other covarying features with depth. Three major ecotypes were recovered: a Nitrosopumilus‐like (NP) group, a Nitrosopelagicus‐like ecotype containing “shallow” water column A (WCA) members, and an ecotype affiliated with the “deep” water column B (WCB) Thaumarchaeota. These ecotypes show a strong depth distribution, with WCB dominant at ≥ 200 m depth and WCA most abundant in surface (5–100 m) waters. The NP ecotype was found throughout the water column with the highest abundance in summer, and was the only ecotype showing a correlation with measured nitrification rates. We also found three abundant taxa related to Nitrospina—the major nitrite‐oxidizing bacteria in the ocean; these showed clear connections to each of the three Thaumarchaeotaecotypes, suggesting a specific relationship between both steps of nitrification. Our results support the importance of ecotype‐based analysis of Thaumarchaeotaand show that their abundance and distribution are controlled based on their water column position, with a distinct shift at 50 m between euphotic and mesopelagic depths.

Published
2020
Full Text
View/download PDF

23. Physical Measurements of Water Properties Across the Mouth of the Gulf of California during April 2013 (PESCAR24)

Author

Rago, Thomas A., Castro-Valdez, Ruben, Margolina, Tetyana, Blum, Marguerite, Wheeler, Ashley, Collins, Curtis A., Universidad Autonoma de Baja California, Ensenada, BC, Mexico, and Oceanography

Subjects
PESCAR, Physical oceanography, Gulf of California, California Undercurrent, Pescadero Basin, Hydrography
Abstract

Title is also in Spanish Prepared for: Secretaría de Relaciones Exteriores, Dirección General de Cooperación Técnica y Científica, México, D.F. Hydrographic data were collected in Pescadero Basin (at the entrance to the Gulf of California) and subsequently along the West Coast of Baja California and Southern and Central California on R/V Point Sur from 19 April to 2 May 2013. Objectives of data collection were to measure both the exchange of waters between the Pacific Ocean and Gulf if California and the variation of water properties in the California Undercurrent as it transported water along the 1000 m isobaths to the north. The purpose of this report is to provide summary listings of cruise data, a description of data collection and processing procedures, and a brief report of oceanographic conditions. Data collection included profiles of conductivity, temperature, dissolved oxygen, nutrients and ocean currents at fixed stations as well as underway observations of sea surface and atmospheric properties and ocean currents. In contrast to previous observations of cyclonic flow, a well-defined pattern of anticyclonic flow of upper waters was observed in Pescadero Basin with flow into the Gulf of California and flow into the pacific along Sinaloa. National Science Foundation, Ocean Sciences Division, 4201 Wilson Boulevard, Arlington, VA 22230. Approved for public release; distribution is unlimited.

Published
2013

24. Physical, Nutrient, and Biological Measurements of Coastal Waters off Central California in March 2012

Author

Rago, Thomas A., Michisaki, Reiko, Marinovic, Baldo, Blum, Marguerite, Naval Postgraduate School (U.S.). Department of Oceanography., and Oceanography

Subjects
zooplankton, hydrography, nutrients, physical oceanography, PaCOOS, biological oceanography, CalCOFI
Abstract

The results of analyses of hydrographic, nutrient, and biological data collected in coastal ocean waters off Central California in March 2012 aboard the R/V Point Sur are presented in both tabular and graphical form. The cruise departed from Moss Landing, California, and proceeded offshore along CalCOFI Line 67 to station 90. Additionally, ancillary Expendable Bathythermograph (XBT), Advanced Very High Resolution Radiometer (AVHRR) satellite imagery, Acoustic Doppler Current Profiler (ADCP), and Underway Data Acquisition System (UDAS) meteorological and surface oceanographic data are also included in this report. The CTD and XBT data can be found on the NODC Website with accession #0098772.

Published
2012

25. Physical, nutrient, and biological measurements of coastal waters off Central California in July 2010

Author

Rago, Thomas A., Reiko, Michisaki, Baldo, Marinovic, Blum, Marguerite, Whitaker, Katherine, Naval Postgraduate School (U.S.). Department of Oceanography., University of California, Santa Cruz. Institute of Marine Sciences., and Oceanography

Subjects
Marine mammals, Hydrography, Zooplankton
Abstract

The results of analyses of hydrographic, nutrient, and biological data collected in coastal ocean waters off Central California in July 2010 aboard the NOAA Ship McArthur-II are presented in both tabular and graphical form. The cruise departed from San Francisco, California, and proceeded offshore along CalCOFI Line 60 to station 90, thence southeastward to CalCOFI Line 67 at station 90, and finally shoreward along CalCOFI Line 67 to Moss Landing, California. Additionally, hydrographic and nutrient data from data collected in Monterey and Carmel Bays after completion of the track described above are presented here. Marine mammal observations were maintained throughout the cruise and are also presented here. Finally, ancillary Underway Data Acquisition System (UDAS) meteorological and surface oceanographic data are also included in this report. NPS-TSA-08-0058.

Published
2011

26. Physical, nutrient, and biological measurements of coastal waters off Central California in November 2010

Author

Rago, Thomas A., Michisaki, Reiko, Marinovic, Baldo, Blum, Marguerite, Naval Postgraduate School (U.S.). Department of Oceanography., University of California, Santa Cruz., and Oceanography

Subjects
Marine biology, Hydrography, Oceanography, Zooplankton
Abstract

The results of analyses of hydrographic, nutrient, and biological data collected in coastal ocean waters off Central California in November 2010 aboard the R/V Point Sur are presented in both tabular and graphical form. The cruise departed from Moss Landing, California, and proceeded offshore along CalCOFI Line 67 to station 90, thence northwestward to CalCOFI Line 60 at station 90, and finally shoreward along CalCOFI Line 60 to Drakes Bay, California. Additionally, ancillary Advanced Very High Resolution Radiometer (AVHRR) satellite imagery, Acoustic Doppler Current Profiler (ADCP), and Underway Data Acquisition System (UDAS) meteorological and surface oceanographic data are also included in this report.

Published
2011

27. 2008 Inter-laboratory Comparison Study of a Reference Material for Nutrients in Seawater

Author

Aoyama, Michio, Anstey, Carol, Barwell-Clarke, Janet, Baurand, Francois, Becker, Susan, Blum, Marguerite, Coverly, Stephen C., Czobik, Edward, d'Amico, Florence, Dahllof, Ingela, Dai, Minhan, Dobson, Judy, Pierre-Duplessix, Olivier, Duval, Magali, Engelke, Clemens, Gong, Gwo-Ching, Grosso, Olivier, Hirayama, Atsushi, Inoue, Hiroyuki, Ishida, Yuzo, Hydes, David J., Kasai, Hiromi, Keroul, Roger, Knockaert, Marc, Kress, Nurit, Krogslund, Katherine A., Kumagai, Masamitsu, Leterme, Sophie C., Mahaffey, Claire, Mitsuda, Hitoshi, Morin, Pascal, Moutin, Thierry, Munaron, Dominique, Murata, Akihiko, Nausch, Gunther, Ogawa, Hiroshi, van Ooijen, Jan, Pan, Jianming, Paradis, Georges, Payne, Chris, Prove, Gary, Raimbault, Patrick, Rose, Malcolm, Saito, Kazuhiro, Saito, Hiroaki, Sato, Kenichiro, Schmidt, Cristopher, Schutt, Monika, Shammon, Theresa M., Olafsdottir, Solveig, Sun, Jun, Tanhua, Toste, Weigelt-Krenz, Sieglinde, White, Linda, Woodward, E. Malcolm S., Worsfold, Paul, Yoshimura, Takeshi, Youenou, Agnes, and Zhang, Jia-Zhong

Abstract

Autoclaved natural seawater collected in the North Pacific Ocean was used as a reference material for nutrients in seawater (RMNS) during an inter-laboratory comparison (I/C) study conducted in 2008. This study was a follow-up to previous studies conducted in 2003 and 2006. A set of six samples was distributed to each of 58 laboratories in 15 countries around the globe, and results were returned by 54 of those laboratories (15 countries). The homogeneities of samples used in the 2008 I/C study, based on analyses for three determinants, were improved compared to those of samples used in the 2003 and 2006 I/C studies. Results of these I/C studies indicate that most of the participating laboratories have an analytical technique for nutrients that is sufficient to provide data of high comparability. The differences between reported concentrations from the same laboratories in the 2006 and 2008 I/C studies for the same batch of RMNS indicate that most of the laboratories have been maintaining internal comparability for two years. Thus, with the current high level of performance in the participating laboratories, the use of a common reference material and the adaptation of an internationally accepted nutrient scale system would increase comparability among laboratories worldwide, and the use of a certified reference material would establish traceability. In the 2008 I/C study we observed a problem of non-linearity of the instruments of the participating laboratories similar to that observed among the laboratories in the 2006 I/C study. This problem of non-linearity should be investigated and discussed to improve comparability for the full range of nutrient concentrations. For silicate comparability in particular, we see relatively larger consensus standard deviations than those for nitrate and phosphate.

Published
2010

28. Physical, nutrient, and biological measurements of coastal waters off Central California in October 2008

Author

Rago, Thomas A., Michisaki, Reiko, Marinovic, Baldo, Blum, Marguerite, Whitaker, Katherine, Naval Postgraduate School (U.S.), University of California, Santa Cruz. Institute of Marine Sciences., and Oceanography

Subjects
Marine mammals, Hydrography, Zooplankton
Abstract

The results of analyses of hydrographic, nutrient, and biological data collected in coastal ocean waters off Central California in October 2008 aboard the R/V Point Sur are presented in both tabular and graphical form. The cruise departed from and returned to Moss Landing, California. Hydrographic stations were completed along CalCOFI Line 67 to station 90, thence along CalCOFI Line 60 from station 75 shoreward to Drake's Bay. An additional 3 coastal stations at which hydrographic and nutrient data only were collected were completed between Drake's Bay and Moss Landing. Marine mammal observations were maintained throughout the cruise, and the results of those observations are presented here also. Ancillary ADCP, Underway Data Acquisition System (UDAS), and AVHRR satellite data are also presented.

Published
2009

29. Physical, nutrient, and biological measurements of coastal waters off central California in January 2009

Author

Rago, Thomas A., Michisaki, Reiko, Marinovic, Baldo, Blum, Marguerite, Whitaker, Katherine, Naval Postgraduate School (U.S.), University of California, Santa Cruz. Institute of Marine Sciences., and Oceanography

Subjects
Marine mammals, Hydrography, Zooplankton
Abstract

The results of analyses of hydrographic, nutrient, and biological data collected in coastal ocean waters off Central California in January and February 2009 aboard the R/V Western Flyer and R/V Point Sur are presented in both tabular and graphical form. Both cruises departed from and returned to Moss Landing, California. Hydrographic stations were completed from Moss Landing, CA, along CalCOFI Line 67 to station 90, and from Drake's Bay along CalCOFI Line 60 to station 60. Nutrient and biological data were not collected along CalCOFI line 60 (R/V Point Sur cruise). Marine mammal observations were maintained throughout the R/V Western Flyer cruise, and the results of those observations are presented here also. Ancillary Underway Data Acquisition System (UDAS) and AVHRR satellite data are also presented.

Published
2009

30. Physical, nutrient, and biological measurements of coastal waters off Central California in November 2007

Author

Rago, Thomas A., Michisaki, Reiko, Marinovic, Baldo, Blum, Marguerite, Whitaker, Katherine, Naval Postgraduate School (U.S.), University of California, Santa Cruz. Institute of Marine Sciences., and Oceanography

Subjects
Marine mammals, Hydrography, Zooplankton
Abstract

The results of analyses of hydrographic, nutrient, and biological data collected in coastal ocean waters off Central California in November 2007 aboard the NOAA Ship David Starr Jordan are presented in both tabular and graphical form. The cruise departed from and returned to San Francisco, California. After steaming to Monterey Bay, the ship proceeding from Moss Landing, California, along CalCOFI line 67 to station 90, thence to CalCOFI line 60/station 90, and finally along CalCOFI line 60 to Drake's Bay, before returning to San Francisco. Marine mammal observations taken during the cruise are also included.

Published
2008

31. Physical, nutrient, and biological measurements of coastal waters off Central California in June 2008

Author

Rago, Thomas A., Michisaki, Reiko, Marinovic, Baldo, Blum, Marguerite, Whitaker, Katherine, Naval Postgraduate School (U.S.), University of California, Santa Cruz. Institute of Marine Sciences., and Oceanography

Subjects
Marine mammals, Hydrography, Zooplankton
Abstract

The results of analyses of hydrographic, nutrient, and biological data collected in coastal ocean waters off Central California in June 2008 aboard the R/V Point Sur are presented in both tabular and graphical form. The cruise departed from and returned to Monterey, California. Because the cruise encountered unusually (for the time of year) heavy weather, scientific operations could only be completed along CalCOFI line 67 from Monterey to station 75, a total of 11 sites. Three more hydrographic stations were completed along the California coast between Monterey and San Francisco, California. Marine mammal observations taken during the cruise are also included.

Published
2008

32. Physical, nutrient, and biological measurements of coastal waters off Central California in June 2007

Author

Rago, Thomas A., Michisaki, Reiko, Marinovic, Baldo, Blum, Marguerite, Whitaker, Katherine, Naval Postgraduate School (U.S.), University of California, Santa Cruz. Institute of Marine Sciences., and Oceanography

Subjects
Marine biology, Hydrography, Oceanography
Abstract

The results of analyses of hydrographic, nutrient, and biological data collected in coastal ocean waters off Central California in June 2007 aboard the NOAA Ship McArthur-II are presented in both tabular and graphical form. The cruise departed from and returned to San Francisco, California, proceeding from Point Reyes, California, along CalCOFI line 60 to station 90, thence to CalCOFI line 67/station 90, and finally along CalCOFI line 67 and along the shelf break to off San Francisco. Marine mammal observations taken during the cruise are also included.

Published
2007

33. Physical, nutrient, and biological measurements of coastal waters off Central California in October 2006

Author

Rago, Thomas A., Michisaki, Reiko, Marinovic, Baldo, Blum, Marguerite, Whitaker, Katherine, Naval Postgraduate School (U.S.), University of California, Santa Cruz. Institute of Marine Sciences., and Oceanography

Subjects
Marine biology, Hydrography, Oceanography
Abstract

The results of analyses of hydrographic, nutrient, and biological data collected in coastal ocean waters off Central California in October 2006 aboard the R/V Wecoma (Hoke cruise) and R/V Point Sur (PaCOOS cruise) are presented in both tabular and graphical form. Along with all the data from the PaCOOS cruise, included in this report are also hydrographic data sampled over the last two days of the Hoke cruise at CalCOFI stations between Moss Landing, California, and Point Reyes, California, and along CalCOFI line 60. The PaCOOS cruise departed from Moss Landing and proceeded to Point Reyes following CalCOFI line 67 to station 90, thence to CalCOFI line 60/station 90, and finally along CalCOFI line 60. The cruise then returned to Moss Landing via the course from CalCOFI line 61.75/station 52.5 to CalCOFI Line 65.25/station 52.5, and thence to site H3. The Hoke cruise finished in Redwood City, California, after following a route from Moss Landing via the aforementioned H3/CalCOFI stations 52.5 and the inshore CalCOFI Line 60 stations from station 60. ADCP observations collected during both cruises, and marine mammal and biological observations taken during the PaCOOS cruise, are also included.

Published
2007

34. Physical Measurements of Water Properties Across the Mouth of the Gulf of California during April 2013 (PESCAR24 Cruise) (Mediciones Fisicas de las Propiedades del Agua a Traves de la Boca del Golfo de California Durante Abril de 2013 (Crucero PESCAR24)

Author

NAVAL POSTGRADUATE SCHOOL MONTEREY CA, Rago, Thomas A, Castro-Valdez, Ruben, Margolina, Tetyana, Blum, Marguerite, Wheeler, Ashley, Collins, Curtis A, NAVAL POSTGRADUATE SCHOOL MONTEREY CA, Rago, Thomas A, Castro-Valdez, Ruben, Margolina, Tetyana, Blum, Marguerite, Wheeler, Ashley, and Collins, Curtis A

Abstract

Hydrographic data were collected in Pescadero Basin (at the entrance to the Gulf of California) and subsequently along the West Coast of Baja California and Southern and Central California on R/V Point Sur from 19 April to 2 May 2013. Objectives of data collection were to measure both the exchange of waters between the Pacific Ocean and Gulf if California and the variation of water properties in the California Undercurrent as it transported water along the 1000 m isobaths to the north. The purpose of this report is to provide summary listings of cruise data, a description of data collection and processing procedures, and a brief report of oceanographic conditions. Data collection included profiles of conductivity, temperature, dissolved oxygen, nutrients and ocean currents at fixed stations as well as underway observations of sea surface and atmospheric properties and ocean currents. In contrast to previous observations of cyclonic flow, a well-defined pattern of anticyclonic flow of upper waters was observed in Pescadero Basin with flow into the Gulf of California and flow into the pacific along Sinaloa., The original document contains color images. Sponsored in part by the Secretaria de Relaciones Exteriores, Direccion General de Cooperacion Tecnica y Cientifica, Mexico, D.F., and the National Science Foundation, Ocean Sciences Division, Arlington, VA. Text in English and Spanish.

Published
2013

35. Physical Measurements of Water Properties Across the Mouth of the Gulf of California during April 2013 (PESCAR24)

Author

Universidad Autonoma de Baja California, Ensenada, BC, Mexico, Oceanography, Rago, Thomas A., Castro-Valdez, Ruben, Margolina, Tetyana, Blum, Marguerite, Wheeler, Ashley, Collins, Curtis A., Universidad Autonoma de Baja California, Ensenada, BC, Mexico, Oceanography, Rago, Thomas A., Castro-Valdez, Ruben, Margolina, Tetyana, Blum, Marguerite, Wheeler, Ashley, and Collins, Curtis A.

Abstract

Hydrographic data were collected in Pescadero Basin (at the entrance to the Gulf of California) and subsequently along the West Coast of Baja California and Southern and Central California on R/V Point Sur from 19 April to 2 May 2013. Objectives of data collection were to measure both the exchange of waters between the Pacific Ocean and Gulf if California and the variation of water properties in the California Undercurrent as it transported water along the 1000 m isobaths to the north. The purpose of this report is to provide summary listings of cruise data, a description of data collection and processing procedures, and a brief report of oceanographic conditions. Data collection included profiles of conductivity, temperature, dissolved oxygen, nutrients and ocean currents at fixed stations as well as underway observations of sea surface and atmospheric properties and ocean currents. In contrast to previous observations of cyclonic flow, a well-defined pattern of anticyclonic flow of upper waters was observed in Pescadero Basin with flow into the Gulf of California and flow into the pacific along Sinaloa.

Published
2013

36. Physical, Nutrient, and Biological Measurements of Coastal Waters off Central California in March 2012

Author

NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF OCEANOGRAPHY, Rago, Thomas A, Michisaki, Reiko, Marinovic, Baldo, Blum, Marguerite, NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF OCEANOGRAPHY, Rago, Thomas A, Michisaki, Reiko, Marinovic, Baldo, and Blum, Marguerite

Abstract

The results of analyses of hydrographic, nutrient, and biological data collected in coastal ocean waters off Central California in March 2012 aboard the R/V Point Sur are presented in both tabular and graphical form. The cruise departed from Moss Landing, California, and proceeded offshore along CalCOFI Line 67 to station 90. Additionally, ancillary Expendable Bathythermograph (XBT), Advanced Very High Resolution Radiometer (AVHRR) satellite imagery, Acoustic Doppler Current Profiler (ADCP), and Underway Data Acquisition System (UDAS) meteorological and surface oceanographic data are also included in this report. The CTD and XBT data can be found on the NODC Website with accession #0098772., The original document contains color images.

Published
2012

37. Physical, Nutrient, and Biological Measurements of Coastal Waters off Central California in March 2012

Author

Naval Postgraduate School (U.S.). Department of Oceanography., Oceanography, Rago, Thomas A., Michisaki, Reiko, Marinovic, Baldo, Blum, Marguerite, Naval Postgraduate School (U.S.). Department of Oceanography., Oceanography, Rago, Thomas A., Michisaki, Reiko, Marinovic, Baldo, and Blum, Marguerite

Abstract

The results of analyses of hydrographic, nutrient, and biological data collected in coastal ocean waters off Central California in March 2012 aboard the R/V Point Sur are presented in both tabular and graphical form. The cruise departed from Moss Landing, California, and proceeded offshore along CalCOFI Line 67 to station 90. Additionally, ancillary Expendable Bathythermograph (XBT), Advanced Very High Resolution Radiometer (AVHRR) satellite imagery, Acoustic Doppler Current Profiler (ADCP), and Underway Data Acquisition System (UDAS) meteorological and surface oceanographic data are also included in this report. The CTD and XBT data can be found on the NODC Website with accession #0098772.

Published
2012

38. Physical, Nutrient, and Biological Measurements of Coastal Waters off Central California in November 2010

Author

NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF OCEANOGRAPHY, Rago, Thomas A, Michisaki, Reiko, Marinovic, Baldo, Blum, Marguerite, NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF OCEANOGRAPHY, Rago, Thomas A, Michisaki, Reiko, Marinovic, Baldo, and Blum, Marguerite

Abstract

The results of analyses of hydrographic, nutrient, and biological data collected in coastal ocean waters off Central California in November 2010 aboard the R/V Point Sur are presented in both tabular and graphical form. The cruise departed from Moss Landing, California, and proceeded offshore along CalCOFI Line 67 to station 90, thence northwestward to CalCOFI Line 60 at station 90, and finally shoreward along CalCOFI Line 60 to Drakes Bay, California. Additionally, ancillary Advanced Very High Resolution Radiometer (AVHRR) satellite imagery, Acoustic Doppler Current Profiler (ADCP), and Underway Data Acquisition System (UDAS) meteorological and surface oceanographic data are also included in this report., The original document contains color images.

Published
2011

39. Physical, Nutrient, and Biological Measurements of Coastal Waters off Central California in July 2010

Author

NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF OCEANOGRAPHY, Rago, Thomas A., Michisaki, Reiko, Marinovic, Baldo, Blum, Marguerite, Whitaker, Katherine, NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF OCEANOGRAPHY, Rago, Thomas A., Michisaki, Reiko, Marinovic, Baldo, Blum, Marguerite, and Whitaker, Katherine

Abstract

The results of analyses of hydrographic, nutrient, and biological data collected in coastal ocean waters off Central California in July 2010 aboard the NOAA Ship McArthur-II are presented in both tabular and graphical form. The cruise departed from San Francisco, California, and proceeded offshore along CalCOFI Line 60 to station 90, thence southeastward to CalCOFI Line 67 at station 90, and finally shoreward along CalCOFI Line 67 to Moss Landing, California. Additionally, hydrographic and nutrient data from data collected in Monterey and Carmel Bays after completion of the track described above are presented here. Marine mammal observations were maintained throughout the cruise and are also presented here. Finally, ancillary Underway Data Acquisition System (UDAS) meteorological and surface oceanographic data are also included in this report., This report was prepared for and funded by the Marine Science Institute, University of California, Santa Cruz, CA.. The original document contains color images.

Published
2011

40. Physical, nutrient, and biological measurements of coastal waters off Central California in July 2010

Author

Naval Postgraduate School (U.S.). Department of Oceanography., University of California, Santa Cruz. Institute of Marine Sciences., Oceanography, Rago, Thomas A., Reiko, Michisaki, Baldo, Marinovic, Blum, Marguerite, Whitaker, Katherine, Naval Postgraduate School (U.S.). Department of Oceanography., University of California, Santa Cruz. Institute of Marine Sciences., Oceanography, Rago, Thomas A., Reiko, Michisaki, Baldo, Marinovic, Blum, Marguerite, and Whitaker, Katherine

Abstract

The results of analyses of hydrographic, nutrient, and biological data collected in coastal ocean waters off Central California in July 2010 aboard the NOAA Ship McArthur-II are presented in both tabular and graphical form. The cruise departed from San Francisco, California, and proceeded offshore along CalCOFI Line 60 to station 90, thence southeastward to CalCOFI Line 67 at station 90, and finally shoreward along CalCOFI Line 67 to Moss Landing, California. Additionally, hydrographic and nutrient data from data collected in Monterey and Carmel Bays after completion of the track described above are presented here. Marine mammal observations were maintained throughout the cruise and are also presented here. Finally, ancillary Underway Data Acquisition System (UDAS) meteorological and surface oceanographic data are also included in this report.

Published
2011

41. Physical, nutrient, and biological measurements of coastal waters off Central California in November 2010

Author

Naval Postgraduate School (U.S.). Department of Oceanography., University of California, Santa Cruz., Oceanography, Rago, Thomas A., Michisaki, Reiko, Marinovic, Baldo, Blum, Marguerite, Naval Postgraduate School (U.S.). Department of Oceanography., University of California, Santa Cruz., Oceanography, Rago, Thomas A., Michisaki, Reiko, Marinovic, Baldo, and Blum, Marguerite

Abstract

The results of analyses of hydrographic, nutrient, and biological data collected in coastal ocean waters off Central California in November 2010 aboard the R/V Point Sur are presented in both tabular and graphical form. The cruise departed from Moss Landing, California, and proceeded offshore along CalCOFI Line 67 to station 90, thence northwestward to CalCOFI Line 60 at station 90, and finally shoreward along CalCOFI Line 60 to Drakes Bay, California. Additionally, ancillary Advanced Very High Resolution Radiometer (AVHRR) satellite imagery, Acoustic Doppler Current Profiler (ADCP), and Underway Data Acquisition System (UDAS) meteorological and surface oceanographic data are also included in this report.

Published
2011

42. Physical, Nutrient, and Biological Measurements of Coastal Waters off Central California in January 2009

Author

NAVAL POSTGRADUATE SCHOOL MONTEREY CA, Rago, Thomas A., Michisaki, Reiko, Marinovic, Baldo, Blum, Marguerite, Whitaker, Katherine, NAVAL POSTGRADUATE SCHOOL MONTEREY CA, Rago, Thomas A., Michisaki, Reiko, Marinovic, Baldo, Blum, Marguerite, and Whitaker, Katherine

Abstract

The results of analyses of hydrographic, nutrient, and biological data collected in coastal ocean waters off Central California in January and February 2009 aboard the R/V Western Flyer and R/V Point Sur are presented in both tabular and graphical form. Both cruises departed from and returned to Moss Landing, California. Hydrographic stations were completed from Moss Landing, CA, along CalCOFI Line 67 to station 90, and from Drake's Bay along CalCOFI Line 60 to station 60. Nutrient and biological data were not collected along CalCOFI line 60 (R/V Point Sur cruise). Marine mammal observations were maintained throughout the R/V Western Flyer cruise, and the results of those observations are presented here also. Ancillary Underway Data Acquisition System (UDAS) and AVHRR satellite data are also presented., The original document contains color images.

Published
2009

43. Physical, Nutrient, and Biological Measurements of Coastal Waters off Central California in October 2008

Author

NAVAL POSTGRADUATE SCHOOL MONTEREY CA, Rago, Thomas A., Michisaki, Reiko, Marinovic, Baldo, Blum, Marguerite, Whitaker, Katherine, NAVAL POSTGRADUATE SCHOOL MONTEREY CA, Rago, Thomas A., Michisaki, Reiko, Marinovic, Baldo, Blum, Marguerite, and Whitaker, Katherine

Abstract

The results of analyses of hydrographic, nutrient, and biological data collected in coastal ocean waters off Central California in October 2008 aboard the R/V Point Sur are presented in both tabular and graphical form. The cruise departed from and returned to Moss Landing, California. Hydrographic stations were completed along CalCOFI Line 67 to station 90, thence along CalCOFI Line 60 from station 75 shoreward to Drake's Bay. An additional 3 coastal stations at which hydrographic and nutrient data only were collected were completed between Drake's Bay and Moss Landing. Marine mammal observations were maintained throughout the cruise, and the results of those observations are presented here also. Ancillary ADCP, Underway Data Acquisition System (UDAS), and AVHRR satellite data are also presented., Prepared in collaboration with Marine Sciences Institute, University of California, Santa Cruz. The original document contains color images.

Published
2009

44. Physical, nutrient, and biological measurements of coastal waters off central California in January 2009

Author

Naval Postgraduate School (U.S.), University of California, Santa Cruz. Institute of Marine Sciences., Oceanography, Rago, Thomas A., Michisaki, Reiko, Marinovic, Baldo, Blum, Marguerite, Whitaker, Katherine, Naval Postgraduate School (U.S.), University of California, Santa Cruz. Institute of Marine Sciences., Oceanography, Rago, Thomas A., Michisaki, Reiko, Marinovic, Baldo, Blum, Marguerite, and Whitaker, Katherine

Abstract

The results of analyses of hydrographic, nutrient, and biological data collected in coastal ocean waters off Central California in January and February 2009 aboard the R/V Western Flyer and R/V Point Sur are presented in both tabular and graphical form. Both cruises departed from and returned to Moss Landing, California. Hydrographic stations were completed from Moss Landing, CA, along CalCOFI Line 67 to station 90, and from Drake's Bay along CalCOFI Line 60 to station 60. Nutrient and biological data were not collected along CalCOFI line 60 (R/V Point Sur cruise). Marine mammal observations were maintained throughout the R/V Western Flyer cruise, and the results of those observations are presented here also. Ancillary Underway Data Acquisition System (UDAS) and AVHRR satellite data are also presented.

Published
2009

45. Physical, nutrient, and biological measurements of coastal waters off Central California in October 2008

Author

Naval Postgraduate School (U.S.), University of California, Santa Cruz. Institute of Marine Sciences., Oceanography, Rago, Thomas A., Michisaki, Reiko, Marinovic, Baldo, Blum, Marguerite, Whitaker, Katherine, Naval Postgraduate School (U.S.), University of California, Santa Cruz. Institute of Marine Sciences., Oceanography, Rago, Thomas A., Michisaki, Reiko, Marinovic, Baldo, Blum, Marguerite, and Whitaker, Katherine

Abstract

The results of analyses of hydrographic, nutrient, and biological data collected in coastal ocean waters off Central California in October 2008 aboard the R/V Point Sur are presented in both tabular and graphical form. The cruise departed from and returned to Moss Landing, California. Hydrographic stations were completed along CalCOFI Line 67 to station 90, thence along CalCOFI Line 60 from station 75 shoreward to Drake's Bay. An additional 3 coastal stations at which hydrographic and nutrient data only were collected were completed between Drake's Bay and Moss Landing. Marine mammal observations were maintained throughout the cruise, and the results of those observations are presented here also. Ancillary ADCP, Underway Data Acquisition System (UDAS), and AVHRR satellite data are also presented.

Published
2009

46. Physical, Nutrient, and Biological Measurements of Coastal Waters off Central California in June 2008

Author

NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF OCEANOGRAPHY, Rago, Thomas A., Michisaki, Reiko, Marinovic, Baldo, Blum, Marguerite, Whitaker, Katherine, NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF OCEANOGRAPHY, Rago, Thomas A., Michisaki, Reiko, Marinovic, Baldo, Blum, Marguerite, and Whitaker, Katherine

Abstract

The results of analyses of hydrographic, nutrient, and biological data collected in coastal ocean waters off Central California in June 2008 aboard the R/V Point Sur are presented in both tabular and graphical form. The cruise departed from and returned to Monterey, California. Because the cruise encountered unusually (for the time of year) heavy weather, scientific operations could only be completed along CalCOFI line 67 from Monterey to station 75, a total of 11 sites. Three more hydrographic stations were completed along the California coast between Monterey and San Francisco, California. Marine mammal observations taken during the cruise are also included., The original document contains color images. Prepared in collaboration with Marine Sciences Inst., University of California, Santa Cruz, CA.

Published
2008

47. Physical, Nutrient, and Biological Measurements of Coastal Waters off Central California in November 2007

Author

NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF OCEANOGRAPHY, Rago, Thomas A., Michisaki, Reiko, Marinovic, Baldo, Blum, Marguerite, Whitaker, Katherine, NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF OCEANOGRAPHY, Rago, Thomas A., Michisaki, Reiko, Marinovic, Baldo, Blum, Marguerite, and Whitaker, Katherine

Abstract

The results of analyses of hydrographic, nutrient, and biological data collected in coastal ocean waters off Central California in November 2007 aboard the NOAA Ship David Starr Jordan are presented in both tabular and graphical form. The cruise departed from and returned to San Francisco, California. After steaming to Monterey Bay, the ship proceeding from Moss Landing, California, along CalCOFI line 67 to station 90, thence to CalCOFI line 60/station 90, and finally along CalCOFI line 60 to Drake's Bay, before returning to San Francisco. Marine mammal observations taken during the cruise are also included., The original document contains color images.

Published
2008

48. Physical, nutrient, and biological measurements of coastal waters off Central California in November 2007

Author

Naval Postgraduate School (U.S.), University of California, Santa Cruz. Institute of Marine Sciences., Oceanography, Rago, Thomas A., Michisaki, Reiko, Marinovic, Baldo, Blum, Marguerite, Whitaker, Katherine, Naval Postgraduate School (U.S.), University of California, Santa Cruz. Institute of Marine Sciences., Oceanography, Rago, Thomas A., Michisaki, Reiko, Marinovic, Baldo, Blum, Marguerite, and Whitaker, Katherine

Abstract

The results of analyses of hydrographic, nutrient, and biological data collected in coastal ocean waters off Central California in November 2007 aboard the NOAA Ship David Starr Jordan are presented in both tabular and graphical form. The cruise departed from and returned to San Francisco, California. After steaming to Monterey Bay, the ship proceeding from Moss Landing, California, along CalCOFI line 67 to station 90, thence to CalCOFI line 60/station 90, and finally along CalCOFI line 60 to Drake's Bay, before returning to San Francisco. Marine mammal observations taken during the cruise are also included.

Published
2008

49. Physical, nutrient, and biological measurements of coastal waters off Central California in June 2008

Author

Naval Postgraduate School (U.S.), University of California, Santa Cruz. Institute of Marine Sciences., Oceanography, Rago, Thomas A., Michisaki, Reiko, Marinovic, Baldo, Blum, Marguerite, Whitaker, Katherine, Naval Postgraduate School (U.S.), University of California, Santa Cruz. Institute of Marine Sciences., Oceanography, Rago, Thomas A., Michisaki, Reiko, Marinovic, Baldo, Blum, Marguerite, and Whitaker, Katherine

Abstract

The results of analyses of hydrographic, nutrient, and biological data collected in coastal ocean waters off Central California in June 2008 aboard the R/V Point Sur are presented in both tabular and graphical form. The cruise departed from and returned to Monterey, California. Because the cruise encountered unusually (for the time of year) heavy weather, scientific operations could only be completed along CalCOFI line 67 from Monterey to station 75, a total of 11 sites. Three more hydrographic stations were completed along the California coast between Monterey and San Francisco, California. Marine mammal observations taken during the cruise are also included.

Published
2008

50. Physical, Nutrient, and Biological Measurements of Coastal Waters off Central California in June 2007

Author

NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF OCEANOGRAPHY, Rago, Thomas A., Michisaki, Reiko, Marinovic, Baldo, Blum, Marguerite, Whitaker, Katherine, NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF OCEANOGRAPHY, Rago, Thomas A., Michisaki, Reiko, Marinovic, Baldo, Blum, Marguerite, and Whitaker, Katherine

Abstract

The results of analyses of hydrographic, nutrient, and biological data collected in coastal ocean waters off Central California in June 2007 aboard the NOAA Ship McArthur-II are presented in both tabular and graphical form. The cruise departed from and returned to San Francisco, California, proceeding from Point keyes, California, along CalCOFI line 60 to station 90, thence to CalCOFI line 67/station 90, and finally along CalCOFI line 67 and along the shelf break to off San Francisco Marine mammal observations taken during the cruise are also included., The original document contains color images. Prepared for and funded by Marine Sciences Institute, Univ. of California, Santa Cruz, CA.

Published
2007

Catalog

Books, media, physical & digital resources
See catalog results