16 results on '"de Santis Braga, Elisabete"'
Search Results
2. Multi-indicators of environmental pollution in the Olaria system, Cananéia, São Paulo (SP), Brazil.
- Author
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Silva, Gisele Luiz da, Chiozzini, Vitor Gonsalez, de Santis Braga, Elisabete, and de Souza Azevedo, Juliana
- Subjects
POLLUTION ,ENVIRONMENTAL quality ,ANTHROPOGENIC effects on nature ,WATER quality ,SEWAGE ,DISSOLVED oxygen in water ,ESTUARIES - Abstract
The assessment of water quality using multiple abiotic and biological indicators is very important for understanding anthropogenic impacts and the health of the ecosystem. The Olaria is a short river system that flows into the Cananéia estuary. This aquatic system crosses the urban center of the city of Cananéia, where it eventually receives untreated domestic wastewater. This study aims to apply multi-indicators of environmental pollution to understand the influence of the Olaria system on the Cananéia estuary. For this purpose, indicators of water quality and genotoxic and pathological responses in fish were used. Data on salinity, pH, and silicates in surface water indicate a more accentuated continental influence in the inner part of the Olaria river system. Moreover, the data recorded on the inner area of the Olaria system, which presents lower hydrodynamic characteristics and the largest urban population, indicated the presence of dissolved oxygen and nutrients (phosphate [P-PO
4 -3 ], nitrite [N-NO2 - ], and ammonium [N-NH4 + ]) at levels that exceed the established limits for water quality by the Brazilian environmental legislation (Conselho Nacional do Meio Ambiente - CONAMA). The presence of Escherichia coli in all analyzed water samples indicates a local or point source of domestic wastewater contamination near the Olaria system. Fish species such as Centropomus undecimalis (Robalo Flexa) and Sphoeroides testudineus (Baiacu Pintado) showed toxicogenetic damage, indicating clastogenic and/or aneugenic exposure in the aquatic environment. Hepatic pathologies such as pyknosis nuclei, inflammation, hepatocyte swelling, and necrosis were found in all specimens evaluated, and C. undecimallis exhibited all these pathological changes. These results highlight the importance of biomonitoring the effects of anthropogenic disturbance on the aquatic biota that frequent the Olaria system and are dependent on the water quality. [ABSTRACT FROM AUTHOR]- Published
- 2023
- Full Text
- View/download PDF
3. Metal Binding and Sources of Humic Substances in Recent Sediments from the Cananéia-Iguape Estuarine-Lagoon Complex (South-Eastern Brazil)
- Author
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Millo, Christian, primary, Bravo, Carlo, additional, Covelli, Stefano, additional, Pavoni, Elena, additional, Petranich, Elisa, additional, Contin, Marco, additional, De Nobili, Maria, additional, Crosera, Matteo, additional, Otero Sutti, Bruno, additional, das Mercês Silva, Camila, additional, and de Santis Braga, Elisabete, additional
- Published
- 2021
- Full Text
- View/download PDF
4. Microphytoplankton assemblages in shallow waters at Admiralty Bay (King George Island, Antarctica) during the summer 2002–2003
- Author
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Lange, Priscila Kienteca, Tenenbaum, Denise Rivera, de Santis Braga, Elisabete, and Campos, Lúcia S.
- Published
- 2007
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- View/download PDF
5. Coastal water exchange rate studies at the southeastern Brazilian margin using Ra isotopes as tracers
- Author
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de Oliveira, Joselene, Charette, Mathew, Allen, Mathew, de Santis Braga, Elisabete, and Furtado, Valdenir Veronese
- Published
- 2006
- Full Text
- View/download PDF
6. IOCCP-JAMSTEC 2018 Inter-laboratory calibration exercise of a certified reference material for nutrients in seawater
- Author
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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
7. IOCCP-JAMSTEC 2015 Inter-laboratory calibration exercise of a certified reference material for nutrients in seawater
- Author
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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
8. Different silicon forms sinalize an input of urbanized river and indicate the presence of phytoplankton with silicon structures in the tropical coastal area of Recife (PE-Brazil).
- Author
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Cid Bastos, Ana Teresa Cordeiro and de Santis Braga, Elisabete
- Subjects
SILICON analysis ,MEASUREMENT of salinity ,BIOGEOCHEMISTRY ,WATER pollution ,BIOGEOCHEMICAL cycles - Abstract
Copyright of Brazilian Journal of Oceanography is the property of Instituto Oceanografico da Universidade de Sao Paulo and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2018
- Full Text
- View/download PDF
9. Dissolved organic matter (C, N, P) on the Pernambuco coast and Fernando de Noronha archipelago (Tropical Zone of Western South Atlantic, Brazil) - A contribution to the evaluation of environmental impact.
- Author
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de Santis Braga, Elisabete, Berbel, Glaucia Bueno Benedetti, and Chiozzini, Vitor Gonsalez
- Subjects
ORGANIC compounds ,SEA water analysis ,HYGIENE products ,NITROGEN analysis ,WATER pollution - Abstract
Copyright of Brazilian Journal of Oceanography is the property of Instituto Oceanografico da Universidade de Sao Paulo and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2018
- Full Text
- View/download PDF
10. Oligotrophic water conditions associated with organic matter regeneration support life and indicate pollution on the western side of Fernando de Noronha Island - NE, Brazil (3°S).
- Author
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de Santis Braga, Elisabete, Chiozzini, Vitor Gonsalez, and Berbel, Gláucia Bueno Benedetti
- Subjects
ORGANIC compounds ,BIOGEOCHEMICAL cycles ,WATER pollution ,TRADE winds ,RAINWATER analysis - Abstract
Copyright of Brazilian Journal of Oceanography is the property of Instituto Oceanografico da Universidade de Sao Paulo and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2018
- Full Text
- View/download PDF
11. Seasonal variation of nutrients and hydrological conditions in the State Marine Park of Laje de Santos (SMPLS) and adjacent continental shelf areas (South Atlantic Ocean - Brazil).
- Author
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de Santis Braga, Elisabete, Chiozzini, Vitor Gonsalez, and Vieira, Chiara Machado
- Subjects
MARINE parks & reserves ,CONTINENTAL shelf ,DISSOLVED oxygen in seawater ,WATER chemistry ,WATER quality - Abstract
Copyright of Brazilian Journal of Oceanography is the property of Instituto Oceanografico da Universidade de Sao Paulo and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2017
- Full Text
- View/download PDF
12. Dissolved organic nutrients (C, N, P) in seawater on the continental shelf in the Southwestern South Atlantic with emphasis State Marine Park of Laje de Santos (SMPLS) - São Paulo - Brazil.
- Author
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de Santis Braga, Elisabete, Berbel, Gláucia Bueno Benedetti, Chiozzini1, Vitor Gonsalez, and Andrade, Natalia Cristina Garrido
- Subjects
PHOSPHORUS content of seawater ,CARBON content of seawater ,NITROGEN content of seawater ,CONTINENTAL shelf ,MARINE parks & reserves - Abstract
Copyright of Brazilian Journal of Oceanography is the property of Instituto Oceanografico da Universidade de Sao Paulo and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2017
- Full Text
- View/download PDF
13. Baiacus e mudanças hidroquímicas: uma avaliação preliminar para o Complexo Estuarino-Lagunar de Cananéia-Iguape, SP.
- Author
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Paschoal Torres, Ísis, de Azevedo Valle, Amanda, Rodrigues Henrique, Bárbara Vitória, Marassi da Silva, Bruno, de Santis Braga, Elisabete, and de Souza Azevedo, Juliana
- Abstract
Copyright of Revista Academica Ciencia Animal is the property of Revista Academica Ciencia Animal and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2022
14. Avaliação biométrica preliminar de peixes enxada (Chaetodipterus faber) de um sítio Ramsar do Litoral Sul do estado de São Paulo.
- Author
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de Azevedo Valle, Amanda, Paschoal Torres, Ísis, Marassi da Silva, Bruno, Luglio Rao, Marcela, de Santis Braga, Elisabete, and de Souza Azevedo, Juliana
- Abstract
Copyright of Revista Academica Ciencia Animal is the property of Revista Academica Ciencia Animal and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2022
15. Determination of naturally occurring Ra Isotopes in Ubatuba-SP, brazil to study coastal dynamics and groundwater input
- Author
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Oliveira, Joselene de, Mazzilli, Barbara P., Teixeira, Washington E., Saueia, Cátia H., Moore, Willard, de Santis Braga, Elisabete, and Furtado, Valdenir V.
- Published
- 2005
- Full Text
- View/download PDF
16. NUCLEAR ABNORMALITIES IN ERYTHROCYTES AND MORPHOMETRIC INDEXES IN THE CATFISH Cathorops spixii (ARIIDAE) FROM DIFFERENT SITES ON THE SOUTHEASTERN BRAZILIAN COAST.
- Author
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De Souza Azevedo, Juliana, De Santis Braga, Elisabete, and Oliveira Ribeiro, Ciro Alberto
- Subjects
ERYTHROCYTES ,BIOMARKERS ,CATFISHES ,EFFECT of human beings on fishes ,GENETIC toxicology ,MUTAGENS - Abstract
Copyright of Brazilian Journal of Oceanography is the property of Instituto Oceanografico da Universidade de Sao Paulo and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2012
- Full Text
- View/download PDF
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