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7 results on '"Gogou, Alexandra"'

1. Seawater physics and chemistry along the Med-SHIP transects in the Mediterranean Sea in 2016

Author

Schroeder, Katrin, Kovačević, Vedrana, Civitarese, Giuseppe, Velaoras, Dimitris, Álvarez, Marta, Tanhua, Toste, Jullion, Loïc, Coppola, Laurent, Bensi, Manuel, Ursella, Laura, Santinelli, Chiara, Giani, Michele, Chiggiato, Jacopo, Aly-Eldeen, Mohamed, Assimakopoulou, Georgia, Bachi, Giancarlo, Bogner, Boie, Borghini, Mireno, Cardin, Vanessa, Cornec, Marin, Giannakourou, Antonia, Giannoudi, Louisa, Gogou, Alexandra, Golbol, Melek, Hazan, Or, Karthäuser, Clarissa, Kralj, Martina, Krasakopoulou, Evangelia, Matić, Frano, Mihanović, Hrvoje, Muslim, Stipe, Papadopoulos, Vassilis P., Parinos, Constantine, Paulitschke, Anne, Pavlidou, Alexandra, Pitta, Elli, Protopapa, Maria, Rahav, Eyal, Raveh, Ofrat, Renieris, Panagiotis, Reyes-Suarez, Nydia C., Rousselaki, Eleni, Silverman, Jacop, Souvermezoglou, Ekaterini, Urbini, Lidia, Zeri, Christina, and Zervoudaki, Soultana

Published
2024
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5. The Contribution of Siliceous Plankton to Vertical Export Flux in the Eastern Mediterranean: A Comparative Study of the North Aegean, Cretan, and Ionian Seas.

Author

Nikolopoulou, Ioanna, Skampa, Elisavet, Varkitzi, Ioanna, Dimiza, Margarita D., Parinos, Constantine, Kambouri, Georgia, Stavrakaki, Ioanna, Gogou, Alexandra, and Triantaphyllou, Maria V.

Subjects
EUPHOTIC zone, ATMOSPHERIC deposition, SEAWATER, RAINFALL, RADIOLARIA
Abstract

This study investigates the intricate dynamics of siliceous plankton species within the open marine regions of the Greek Seas, focusing on their seasonal and spatial variability. For this purpose, vertical export fluxes of diatoms (DtF), silicoflagellates (SF), and radiolaria (RF) were analyzed in three sediment trap time series obtained from the North Aegean, Cretan, and Ionian Seas. Special attention was given to diatom assemblages, resulting in the estimation of the DtF community structure and diversity for each studied site. Diatom flux values reached 353.9 × 103 valves m−2 day−1, 77.7 × 103 valves m−2 day−1, and 42.4 × 103 valves m−2 day−1 in the North Aegean, Ionian, and Cretan Seas, respectively. SF maxima were 1309.8 × 103 skeletons m−2 day−1 in the North Aegean Sea, 35.2 × 103 skeletons m−2 day−1 in the Ionian Sea, and 11.9 × 103 skeletons m−2 day−1 in the Cretan Sea (South Aegean Sea). RF values reached 13.9 × 103 radiolaria m−2 day−1, 11.9 × 103 radiolaria m−2 day−1, and 5.4 × 103 radiolaria m−2 day−1 in the North Aegean, Ionian, and Cretan Seas, respectively. The North Aegean Sea exhibited significantly higher mean total fluxes, particularly for diatoms, driven by the north-to-south oligotrophy gradient, which was influenced by riverine inflows and the nutrient-rich Black Sea water. In the Cretan and Ionian Seas, convective mixing and atmospheric deposition, especially during increased rainfall (precipitation) events, were identified as primary drivers for the increased siliceous plankton fluxes recorded in the late winter–spring months. Diatom communities were dominated by Naviculales and Fragilariales; the prevalence of the former in the North Aegean Sea is likely linked to the higher nutrient levels in its upper photic zone, as Naviculales includes species with a high affiliation to nutrient enrichment. [ABSTRACT FROM AUTHOR]

Published
2024
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6. Spatiotemporal Gradients of PAH Concentrations in Greek Cities and Associated Exposure Impacts

Author

Tsiodra, Irini, primary, Tavernaraki, Kalliopi, additional, Grivas, Georgios, additional, Parinos, Constantine, additional, Papoutsidaki, Kyriaki, additional, Paraskevopoulou, Despina, additional, Liakakou, Eleni, additional, Gogou, Alexandra, additional, Bougiatioti, Aikaterini, additional, Gerasopoulos, Evangelos, additional, Kanakidou, Maria, additional, and Mihalopoulos, Nikolaos, additional

Published
2024
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7. Seawater physics and chemistry along the Med-SHIP transects in the Mediterranean Sea in 2016

Author

European Commission, CSIC - Instituto Español de Oceanografía (IEO), Schroeder, Katrin, Kovačević, Vedrana, Civitarese, Giuseppe, Velaoras, Dimitris, Álvarez-Rodríguez, Marta, Tanhua, Toste, Jullion, Loïc, Coppola, Laurent, Bensi, Manuel, Ursella, Laura, Santinelli, Chiara, Giani, Michele, Chiggiato, Jacopo, Aly-Eldeen, Mohamed, Assimakopoulou, Georgia, Bachi, Giancarlo, Bogner, Boie, Borghini, Mireno, Cardin, Vanessa, Cornec, Marin, Giannakourou, Antonia, Giannoudi, Louisa, Gogou, Alexandra, Golbol, Melek, Hazan, Or, Karthäuser, Clarissa, Kralj, Martina, Krasakopoulou, Evangelia, Matić, Frano, Mihanović, Hrvoje, Muslim, Stipe, Papadopoulos, Vassilis P, Parinos, Constantine, Paulitschke, Anne, Pavlidou, Alexandra, Pitta, Elli, Protopapa, Maria, Rahav, Eyal, Raveh, Ofrat, Renieris, Panagiotis, Reyes-Suarez, Nydia C, Rousselaki, Eleni, Silverman, Jacop, Souvermezoglou, Ekaterini, Urbini, Lidia, Zeri, Christina, Zervoudaki, Soultana, European Commission, CSIC - Instituto Español de Oceanografía (IEO), Schroeder, Katrin, Kovačević, Vedrana, Civitarese, Giuseppe, Velaoras, Dimitris, Álvarez-Rodríguez, Marta, Tanhua, Toste, Jullion, Loïc, Coppola, Laurent, Bensi, Manuel, Ursella, Laura, Santinelli, Chiara, Giani, Michele, Chiggiato, Jacopo, Aly-Eldeen, Mohamed, Assimakopoulou, Georgia, Bachi, Giancarlo, Bogner, Boie, Borghini, Mireno, Cardin, Vanessa, Cornec, Marin, Giannakourou, Antonia, Giannoudi, Louisa, Gogou, Alexandra, Golbol, Melek, Hazan, Or, Karthäuser, Clarissa, Kralj, Martina, Krasakopoulou, Evangelia, Matić, Frano, Mihanović, Hrvoje, Muslim, Stipe, Papadopoulos, Vassilis P, Parinos, Constantine, Paulitschke, Anne, Pavlidou, Alexandra, Pitta, Elli, Protopapa, Maria, Rahav, Eyal, Raveh, Ofrat, Renieris, Panagiotis, Reyes-Suarez, Nydia C, Rousselaki, Eleni, Silverman, Jacop, Souvermezoglou, Ekaterini, Urbini, Lidia, Zeri, Christina, and Zervoudaki, Soultana

Abstract

The Mediterranean Sea has been sampled irregularly by research vessels in the past, mostly by national expeditions in regional waters. To monitor the hydrographic, biogeochemical and circulation changes in the Mediterranean Sea, a systematic repeat oceanographic survey programme called Med-SHIP was recommended by the Mediterranean Science Commission (CIESM) in 2011, as part of the Global Ocean Ship-based Hydrographic Investigations Program (GO-SHIP). Med-SHIP consists of zonal and meridional surveys with different frequencies, where comprehensive physical and biogeochemical properties are measured with the highest international standards. The first zonal survey was done in 2011 and repeated in 2018. In addition, a network of meridional (and other key) hydrographic sections were designed: the first cycle of these sections was completed in 2016, with three cruises funded by the EU project EUROFLEETS2. This paper presents the physical and chemical data of the meridional and key transects in the Western and Eastern Mediterranean Sea collected during those cruises.

Published
2024

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