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2. A MSFD complementary approach for the assessment of pressures, knowledge and data gaps in Southern European Seas: The PERSEUS experience

Author

Crise, A., Kaberi, H., Ruiz, J., Zatsepin, A., Arashkevich, E., Giani, M., Karageorgis, A.P., Prieto, L., Pantazi, M., Gonzalez-Fernandez, D., Ribera d’Alcalà, M., Tornero, V., Vassilopoulou, V., Durrieu de Madron, X., Guieu, C., Puig, P., Zenetos, A., Andral, B., Angel, D., Altukhov, D., Ayata, S.D., Aktan, Y., Balcıoğlu, E., Benedetti, F., Bouchoucha, M., Buia, M.-C., Cadiou, J.-F., Canals, M., Chakroun, M., Christou, E., Christidis, M.G., Civitarese, G., Coatu, V., Corsini-Foka, M., Cozzi, S., Deidun, A., Dell’Aquila, A., Dogrammatzi, A., Dumitrache, C., Edelist, D., Ettahiri, O., Fonda-Umani, S., Gana, S., Galgani, F., Gasparini, S., Giannakourou, A., Gomoiu, M.-T., Gubanova, A., Gücü, A.-C., Gürses, Ö., Hanke, G., Hatzianestis, I., Herut, B., Hone, R., Huertas, E., Irisson, J.-O., İşinibilir, M., Jimenez, J.A., Kalogirou, S., Kapiris, K., Karamfilov, V., Kavadas, S., Keskin, Ç., Kideyş, A.E., Kocak, M., Kondylatos, G., Kontogiannis, C., Kosyan, R., Koubbi, P., Kušpilić, G., La Ferla, R., Langone, L., Laroche, S., Lazar, L., Lefkaditou, E., Lemeshko, I.E., Machias, A., Malej, A., Mazzocchi, M.-G., Medinets, V., Mihalopoulos, N., Miserocchi, S., Moncheva, S., Mukhanov, V., Oaie, G., Oros, A., Öztürk, A.A., Öztürk, B., Panayotova, M., Prospathopoulos, A., Radu, G., Raykov, V., Reglero, P., Reygondeau, G., Rougeron, N., Salihoglu, B., Sanchez-Vidal, A., Sannino, G., Santinelli, C., Secrieru, D., Shapiro, G., Simboura, N., Shiganova, T., Sprovieri, M., Stefanova, K., Streftaris, N., Tirelli, V., Tom, M., Topaloğlu, B., Topçu, N.E., Tsagarakis, K., Tsangaris, C., Tserpes, G., Tuğrul, S., Uysal, Z., Vasile, D., Violaki, K., Xu, J., Yüksek, A., and Papathanassiou, E.

Published
2015
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6. International conference ICAWA 2017 and 2018 : extended book of abstract : the AWA project : ecosystem approach to the management of fisheries and the marine environment in West African waters

Author

Brochier, Timothée, Auger, Pierre-Amaël, Pecquerie, Laure, Machu, Eric, Capet, Xavier, Thiaw, M., Mbaye, B.C., Braham, C.B., Ettahiri, O., Charouki, N., Ndaw, O.S., Werner, F., Brehmer, Patrice, Brehmer, Patrice (ed.), Diogoul, N. (collab.), Zenk, C. (collab.), Vareilles, M. de (collab.), Keenlyside, N. (collab.), Nascimento, J.M. (collab.), Ramos, V. M. (collab.), Sow, B.A. (collab.), Fock, H. (collab.), Schmidt, J. (collab.), Ekau, W. (collab.), Mbaye, A. (collab.), Fall. A. (collab.), Monteiro, I. (collab.), Kouassi, A.M. (collab.), Silva, O. (collab.), Brochier, Timothée (collab.), Sall. M. (collab.), Mayif, M. (collab.), Koné, V. (collab.), Gorgues, Thomas (collab.), Ferreira Santos, C. (collab.), Bamy, I.L. (collab.), Barry, I. (collab.), Sidibe, M. (collab.), and Diadhou, H. (collab.)

Abstract

Small pelagic fish (SPF) species are heavily exploited in eastern boundary upwelling systems (EBUS) as their transformation products are increasingly used in the world food chain. Management relies on regular monitoring, but there is a lack of robust theories for the emergence of the populations’ traits and their evolution in highly variable environments. This work aims to address existing knowledge gaps by combining physical and biogeochemical modelling with an individual life-cycle based model applied to round sardinella (Sardinella aurita) off northwest Africa, a key species for regional food security. Our approach focused on the processes responsible for seasonal migrations, spatio-temporal size-structure, and interannual biomass fluctuations. Emergence of preferred habitat resulted from interactions between natal homing behaviour and environmental variability that impacts early life stages. Exploration of the environment by the fishes was determined by swimming capabilities, mesoscale to regional habitat structure, and horizontal currents. Fish spatio-temporal abundance variability emerged from a complex combination of distinct life-history traits. An alongshore gradient in fish size distributions is reported and validated by in situ measurements. New insights into population structure are provided, within an area where the species is abundant year-round (Mauritania) and with latitudinal migrations of variable (300 to 1200 km) amplitude. Interannual biomass fluctuations were linked to modulations of fish recruitment over the Sahara Bank driven by variability in alongshore current intensity. The identified processes constitute an analytical framework that can be implemented in other EBUS and used to explore impacts of regional climate change on SPF.

Published
2019

7. International conference ICAWA 2016 : extended book of abstract : the AWA project : ecosystem approach to the management of fisheries and the marine environment in West African waters

Author

Brochier, Timothée, Auger, Pierre-Amaël, Pecquerie, Laure, Machu, Eric, Capet, X., Thiaw, M., Ettahiri, O., Braham, C.B., Charouki, N., Brehmer, Patrice, Brehmer, Patrice (ed.), Ba, B. (ed.), and Kraus, G. (ed.)

Abstract

Small pelagic fish (SPF) species are heavily exploited in the four main eastern boundary upwelling systems (EBUS), including both Atlantic African ones, as their transformation are increasingly used in the world food chain. Management rely on regular monitoring, but there is a lack of model for population traits emergence and evolution according to the variability of the environment. We attempt to extract some general rules based on the analysis of a life cycle biophysical individual based model applied to the round sardinella (Sardinella aurita, Clupeidae) population off North West Africa. Our analysis focused on the processes responsible for seasonal migrations, spatio-temporal body-length distribution, and inter-annual biomass fluctuations. These patterns were found at individual level in the dynamic change of preferred habitat, and variability in exploration capacities. The former resulted from complex interactions between natal homing behavior and environmental variability, while the last was determined by individual swimming capacities, the mesoscale structure of the habitat and the horizontal currents. Observed spatio-temporal abundance variability emerged from a superposition of numerous distinct individual life histories. This work also suggested an alongshore pattern in size distributions confirmed by in situ surveys. New insights about population structure are provided, with a focal area in Mauritania and mainly two migrating sub-populations centered at 18°N and 21°N, respectively. Inter-annual biomass fluctuations were linked to variability in Sahara Bank's fish recruitment, itself depending on southward current intensity. The identified processes constitute an analytical frame that can be transposed to study Small pelagic fish in all eastern boundary upwelling systems and used to study potential effect of regional climate change.

Published
2017

8. International conference ICAWA 2015 : extended book of abstract : the AWA project : ecosystem approach to the management of fisheries and the marine environment in West African waters

Author

Brochier, Timothée, Auger, P.A., Pecquerie, Laure, Thiaw, M., Mbaye, B.C., Breham, C.B., Ettahiri, O., Charouki, N., Brehmer, Patrice, Brehmer, Patrice (ed.), Ba, B. (ed.), Kraus, G. (ed.), Gomez, M.M. (collab.), Diogoul, N. (collab.), Brandt, P. (collab.), Sow, B.A. (collab.), Lazar, A. (collab.), Capet, X. (collab.), Fock, H. (collab.), Machu, Eric (collab.), Diadihou, H.D. (collab.), Jouffre, Didier (collab.), Diallo, I. (collab.), Schmidt, J. (collab.), Ekau, W. (collab.), Gaye, A. (collab.), Ould Taleb Sidi, M. (collab.), Thiaw, M. (collab.), Diop, C.A. (collab.), Mbaye, A. (collab.), Gouriou, Yves (collab.), Traore, D.B. (collab.), Sall, M. (collab.), Diara, M. (collab.), Fall. A. (collab.), Ly, I. (collab.), Monteiro, I. (collab.), Kone, V. (collab.), Toguyeni, A. (collab.), Bonnin, Marie (collab.), and Faraj, A. (collab.)

Published
2016

9. Comparison of zooplankton ecology of the Mediterranean and the north Atlantic

Author

Gorsky G, Daly Yahia N, Siokou Frangou I, Ettahiri O, Mazzocchi MG, Khelifi Touhami M, Fernandez De Puelles ML, Zakaria H, Stefanova K, Mutlu E, Gislason A., FONDA, SERENA, Gorsky, G, Daly Yahia, N, Siokou Frangou, I, Ettahiri, O, Mazzocchi, Mg, Khelifi Touhami, M, Fernandez De Puelles, Ml, Zakaria, H, Stefanova, K, Mutlu, E, Fonda, Serena, and Gislason, A.

Subjects
Zoopplankton, Atlantic, time series, Mediterranean, time serie
Published
2010

10. Distribution des larves de sardine et d'anchois le long du filament du Cap Ghir (région nord-ouest africaine)

Author

Berraho, A., Ettahiri, O., Brochier, Timothée, Benazzouz, A., Larissi, J., Makaoui, A., Somoue, L., Salah, S., Hilmi, K., and Orbi, A.

Subjects
POISSON MARIN, SALINITE, SARDINE, VARIATION SAISONNIERE, COURANT GEOSTROPHIQUE, LARVE, TELEDETECTION SPATIALE, UPWELLING, PLANCTON, DISTRIBUTION SPATIALE, TEMPERATURE, CHLOROPHYLLE, ANCHOIS
Abstract

L'une des caractéristiques des systèmes d'upwellings côtiers est la présence la présence de structures méso-échelles que la littérature appelle des "filaments d'upwelling", des extensions vers le large de masses d'eaux issues de l'upwelling. Ces filaments impactent la structure des communautés planctoniques, dont les larves de petits poissons pélagiques, considérées comme traceurs biologiques des filaments d’upwelling. Sur la côte Atlantique marocaine, le plus important de ces filaments est celui du Cap Ghir. Le présent travail présente une étude des caractéristiques hydrologiques et du plancton entreprise dans la région du Cap Ghir (31°N) à travers cinq campagnes océanographiques réalisées durant la période 2008-2009. L'analyse des mesures de température, salinité et de concentration de chlorophylle a montre une variabilité spatio-temporelle de la direction de la dérive des eaux d'upwelling vers le large, qui amène ces eaux alternativement au nord ou au sud du 31ème parallèle nord. Cette variabilité observée in situ, est confirmée par l'analyse des images satellites relatives aussi bien à la SST qu'à la couleur d'eau de mer. Sur le plan biologique, l'impact des filaments d'upwelling est étudié à travers la distribution des larves de sardines et d'anchois collectées dans la zone du Cap Ghir. Ainsi, la répartition des tailles moyennes pondérées de ces larves montre un transport vers le large selon un schéma de circulation vers le nord et le sud de la zone côtière d'upwelling.

Published
2012

11. Report of a GLOBEC-SPACC/IDYLE/ENVIFISH workshop on spatial approaches to the dynamics of coastal pelagic resources and their environment in upwelling areas

Author

Ettahiri, O., Berraho, A., Vidy, Guy, Ramdani, M., Zizah, S., Dochi, T., Van der Lingen, C.D. (ed.), Roy, Claude (ed.), Fréon, Pierre (ed.), Barange, M. (ed.), Castro, L. (ed.), Gutierrez, M. (ed.), Nykjaer, L.(ed.), and Shillington, F. (ed.)

Subjects
VARIATION INTERANNUELLE, SAISON DE PONTE, SARDINE, VARIATION SAISONNIERE, OEUF, LARVE, STOCK, DISTRIBUTION SPATIALE
Published
2001

16. A MSFD complementary approach for the assessment of pressures, knowledge and data gaps in Southern European Seas: the PERSEUS experience

Author

Esra Billur Balcıoğlu, Ozgur Gurses, E. Papathanassiou, C. Dumitrache, O. Ettahiri, Gianmaria Sannino, Marina Panayotova, Çetin Keskin, Stéphane Gasparini, Kalliopi Violaki, M. Ribera d'Alcalà, Argyro Zenetos, Gerasimos Kondylatos, Giuseppe Civitarese, Baris Salihoglu, N. Streftaris, Georg Hanke, Stefano Miserocchi, Maria Grazia Mazzocchi, R. Kosyan, Pere Puig, Catherine Tsangaris, Vladimir A. Mukhanov, Alessandro Dell'Aquila, Slim Gana, José A. Jiménez, Maria Cristina Buia, Marc Bouchoucha, Athanassios Machias, Aristomenis P. Karageorgis, E. Huertas, Alessandro Crise, Chiara Santinelli, Miquel Canals, M.G. Christidis, D. Vasile, M. Tom, Sakina-Dorothée Ayata, Luminita Lazar, Stefanos Kavadas, Jean-Francois Cadiou, Bruno Andral, Laura Prieto, Ayaka Amaha Öztürk, Valentina Tirelli, José Luis Ruiz, K. Tsagarakis, C. Kontogiannis, R. La Ferla, G. Tserpes, Maria Corsini-Foka, Aristides Prospathopoulos, Ahmet E. Kideys, Vassiliki Vassilopoulou, Anna Sanchez-Vidal, Jean-Olivier Irisson, Elena Arashkevich, Volodymyr I. Medinets, Daniel González-Fernández, Melek Isinibilir, Kostas Kapiris, Ali Cemal Gücü, G. Radu, Nomiki Simboura, Dor Edelist, A. Dogrammatzi, Mustafa Koçak, V. Tornero, Violin Raykov, Stefanos Kalogirou, Alenka Malej, Kremena Stefanova, Dan Secrieru, R. Hone, Alan Deidun, Valentina Coatu, Cécile Guieu, Epaminondas Christou, Jingjing Xu, Ioannis Hatzianestis, Patricia Reglero, N. Rougeron, Tamara A. Shiganova, Nikos Mihalopoulos, Grozdan Kušpilić, Andra Oros, Fabio Benedetti, Gabriel Reygondeau, E. Lefkaditou, A. Zatsepin, I.E. Lemeshko, Süleyman Tuğrul, Bayram Öztürk, Helen Kaberi, Gheorghe Oaie, Antonia Giannakourou, Denis Altukhov, Leonardo Langone, Michele Giani, Stefano Cozzi, Snejana Moncheva, Philippe Koubbi, Ahsen Yüksek, Barak Herut, Dror L. Angel, Ventzislav Karamfilov, Georgy Shapiro, Mario Sprovieri, X. Durrieu de Madron, M. Chakroun, Yelda Aktan, Bülent Topaloğlu, S. Fonda-Umani, S. Laroche, A. Gubanova, Nur Eda Topçu, M. T. Gomoiu, Zahit Uysal, Maria Pantazi, François Galgani, Universitat Politècnica de Catalunya. Departament d'Enginyeria Hidràulica, Marítima i Ambiental, Universitat Politècnica de Catalunya. LIM/UPC - Laboratori d'Enginyeria Marítima, Istituto Nazionale di Geofisica e di Oceanografia Sperimentale (OGS), Hellenic Centre for Marine Research (HCMR), Instituto de Ciencias Marinas de Andalucia [Cádiz, Espagne] (ICMAN), Consejo Superior de Investigaciones Científicas [Madrid] (CSIC), P.P. Shirshov Institute of Oceanology (SIO), Russian Academy of Sciences [Moscow] (RAS), JRC Institute for Environment and Sustainability (IES), European Commission - Joint Research Centre [Ispra] (JRC), Stazione Zoologica Anton Dohrn (SZN), Centre de Formation et de Recherche sur les Environnements Méditérranéens (CEFREM), Université de Perpignan Via Domitia (UPVD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'océanographie de Villefranche (LOV), Observatoire océanologique de Villefranche-sur-mer (OOVM), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Institute of Marine Sciences / Institut de Ciències del Mar [Barcelona] (ICM), Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER), University of Haifa [Haifa], A.O. Kovalevskiy Institute of Biology of Southern Seas [Sevastopol, Ukraine], Istanbul University, Laboratoire de Réactivité de Surface (LRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Robotique de Versailles (LRV), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Centre National de la Recherche Scientifique (CNRS), Universitat de Barcelona (UB), SAROST SA [Tunis, Tunisie], Institutul National de Cercetare-Dezvoltare pentru Geologie si Geoecologie Marina (INCD GeoEcoMar), National Research Council of Italy | Consiglio Nazionale delle Ricerche (CNR), University of Malta [Malta], Agenzia Nazionale per le nuove Tecnologie, l’energia e lo sviluppo economico sostenibile = Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA), Institut National de Recherche Halieutique [Casablanca, Maroc] (INRH), Consorzio Nazionale Interuniversitario per le Scienze del Mare [Rome, Italie] (CoNISma), Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de la Mer de Villefranche (IMEV), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Middle East Technical University [Ankara] (METU), Israel Oceanographic and Limnological Research (IOLR), Plymouth University, Laboratoire de Biotechnologie de l'Environnement [Narbonne] (LBE), Institut National de la Recherche Agronomique (INRA)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Bulgarian Academy of Sciences (BAS), Biologie des Organismes et Ecosystèmes Aquatiques (BOREA), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA), Institute of Oceanography and Fisheries, Marine Hydrophysical Institute (MHI), National Academy of Sciences of Ukraine (NASU), National Institute of Biology [Ljubljana] (NIB), Odessa National I.I.Mechnikov University, Environmental Chemical Processes Laboratory [Heraklion] (ECPL), Department of Chemistry [Heraklion], University of Crete [Heraklion] (UOC)-University of Crete [Heraklion] (UOC), Institute of Oceanology of Bulgarian Academy of Sciences (IO-BAS), Laboratoire des Propriétés Mécaniques et Thermodynamiques des Matériaux (LPMTM), Université Paris 13 (UP13)-Institut Galilée-Centre National de la Recherche Scientifique (CNRS), National Institute of Marine Geology and Geoecology (Romania), Instituto Español de Oceanografía (IEO), Málaga., UMR 212 EME 'écosystèmes marins exploités' (EME), Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Montpellier (UM), Istituto di Biofisica [Pisa] (IBF), University of Crete [Heraklion] (UOC), Huazhong University of Science and Technology [Wuhan] (HUST), European Project: 287600,EC:FP7:ENV,FP7-OCEAN-2011,PERSEUS(2012), Instituto de Ciencias Marinas de Andalucía, Stazione Zoologica Anton Dhorn, Université de Perpignan Via Domitia (UPVD)-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire océanologique de Villefranche-sur-mer (OOVM), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Consejo Superior de Investigaciones Científicas [Spain] (CSIC), Plankton Department, Institute of Biology of the Southern Seas (IBSS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS), Stazione Zoologica Napoli, GRC Geociències Marines, Department de Estratigrafía, SAROST, SAROST Agency, Immeuble Saadi Tour EF, El Menzah IV, Tunis, 1082, Tunisia, affiliation inconnue, Institutul Naţional de Cercetare - Dezvoltare Marină 'Grigore Antipa' (INCDM), Consiglio Nazionale delle Ricerche [Roma] (CNR), ENEA Ente per le Nuove Technologie Energia e Ambiente, Centro Ricerche Casaccia, Centro Ricerche Casaccia, Institut National de Recherche Halieutique, Departement of Life Sciences, University of Trieste, Laboratoire Environnement Ressources Provence - Azur - Corse, Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1)-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées, Institute of Marine Science (IMS), Israel Oceanographic and Limnological Research - IOLR (ISRAEL), Agencia Estatal Consejo Superior de Investigaciones Cientificas, Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro)-Institut National de la Recherche Agronomique (INRA), Institute of Biodiversity and Ecosystem Research (IBER), the Ukrainian National Academy of Sciences, Nacionalni Institut za Biliogito (NIB), Odessa National University, Centre National de la Recherche Scientifique (CNRS)-Institut Galilée-Université Paris 13 (UP13), Instituto Espanol de Oceanografia, Instituto Español de Oceanografía, Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA), Istituto per l'Ambiente Marino Costiero, European Commission, Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), Agenzia Nazionale per le nuove Tecnologie, l’energia e lo sviluppo economico sostenibile (ENEA), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Sorbonne Université (SU)-Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU), Crise, A, Kaberi, H., Ruiz, J., Zatsepin, A., Arashkevich, E., Giani, M., Karageorgis, A. P., Prieto, L., Pantazi, M., Gonzalez Fernandez, D., Ribera d'Alcalà, M., Tornero, V., Vassilopoulou, V., Durrieu de Madron, X., Guieu, C., Puig, P., Zenetos, A., Andral, B., Angel, D., Altukhov, D., Ayata, S. D., Aktan, Y., Balcioğlu, E., Benedetti, F., Bouchoucha, M., Buia, M. C., Cadiou, J. F., Canals, M., Chakroun, M., Christou, E., Christidis, M. G., Civitarese, G., Coatu, V., Corsini Foka, M., Cozzi, S., Deidun, A., Dell'Aquila, A., Dogrammatzi, A., Dumitrache, C., Edelist, D., Ettahiri, O., Fonda, Serena, Gana, S., Galgani, F., Gasparini, S., Giannakourou, A., Gomoiu, M. T., Gubanova, A., Gücü, A. C., Gürses, O., Hanke, G., Hatzianestis, I., Herut, B., Hone, R., Huertas, E., Irisson, J. O., Işinibilir, M., Jimenez, J. A., Kalogirou, S., Kapiris, K., Karamfilov, V., Kavadas, S., Keskin, C., Kideyş, A. E., Kocak, M., Kondylatos, G., Kontogiannis, C., Kosyan, R., Koubbi, P., Kušpilić, G., La Ferla, R., Langone, L., Laroche, S., Lazar, L., Lefkaditou, E., Lemeshko, I. E., Machias, A., Malej, A., Mazzocchi, M. G., Medinets, V., Mihalopoulos, N., Miserocchi, S., Moncheva, S., Mukhanov, V., Oaie, G., Oros, A., Öztürk, A. A., Öztürk, B., Panayotova, M., Prospathopoulos, A., Radu, G., Raykov, V., Reglero, P., Reygondeau, G., Rougeron, N., Salihoglu, B., Sanchez Vidal, A., Sannino, G., Santinelli, C., Secrieru, D., Shapiro, G., Simboura, N., Shiganova, T., Sprovieri, M., Stefanova, K., Streftaris, N., Tirelli, V., Tom, M., Topaloğlu, B., Topçu, N. E., Tsagarakis, K., Tsangaris, C., Tserpes, G., Tuğrul, S., Uysal, Z., Vasile, D., Violaki, K., Xu, J., Yüksek, A., Papathanassiou, E., Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), and Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de la Recherche Agronomique (INRA)

Subjects
Conservation of Natural Resources, Good Environmental Status, Oceans and Seas, Biodiversity, Initial Assessment, Marine Strategy Framework Directive, PERSEUS project, Southern European Seas, Aquatic Science, Oceanography, Pollution, Biology, Marine pollution--European Union countries, Environmental protection, Marine debris, Pressure, 14. Life underwater, SDG 14 - Life Below Water, Good Environmental Statu, Ecosystem, [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography, Underwater noise, business.industry, Environmental resource management, Additional research, Environmental Policy, Europe, Enginyeria civil::Impacte ambiental [Àrees temàtiques de la UPC], Mar -- Contaminació -- Política comunitària -- Unió Europea, 13. Climate action, Enginyeria civil::Enginyeria hidràulica, marítima i sanitària::Ports i costes [Àrees temàtiques de la UPC], Southern European Sea, business, Environmental Monitoring
Abstract

Crise, A. ... et. al.-- 12 pages, 1 figure, 5 tables, PERSEUS project aims to identify the most relevant pressures exerted on the ecosystems of the Southern European Seas (SES), highlighting knowledge and data gaps that endanger the achievement of SES Good Environmental Status (GES) as mandated by the Marine Strategy Framework Directive (MSFD). A complementary approach has been adopted, by a meta-analysis of existing literature on pressure/impact/knowledge gaps summarized in tables related to the MSFD descriptors, discriminating open waters from coastal areas. A comparative assessment of the Initial Assessments (IAs) for five SES countries has been also independently performed. The comparison between meta-analysis results and IAs shows similarities for coastal areas only. Major knowledge gaps have been detected for the biodiversity, marine food web, marine litter and underwater noise descriptors. The meta-analysis also allowed the identification of additional research themes targeting research topics that are requested to the achievement of GES. © 2015 The Authors, This work has been partially funded by the EC FP7 PERSEUS Project (Grant. Agr. 287600)

Published
2015
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17. [Phytoplankton distribution in the upwelling areas of the Moroccan Atlantic coast localized between 32°30'N and 24°N].

Author

Elghrib H, Somoue L, Elkhiati N, Berraho A, Makaoui A, Bourhim N, Salah S, and Ettahiri O

Subjects
Algorithms, Analysis of Variance, Atlantic Ocean, Classification, Environmental Monitoring, Genetic Variation, Geography, Morocco, Phytoplankton classification, Seasons, Seawater, Phytoplankton physiology
Abstract

Marine phytoplankton was studied in January and July 2002 along of four transects: 32°30'N, 29°N, 24°30'N and 24°N. A total of 142 taxa were recorded in this area. The maximal specific richness, both in summer and in winter, was registered around Dakhla (24°N). The global spatiotemporal variability of species richness and specific diversity showed that the most structured and species-rich populations are situated in the coastal areas. The vertical variation of the two parameters showed homogeneity between depth levels. The maximal phytoplanktonic densities are recorded in the southern transects due to the permanent upwelling activity in the southern Atlantic coast. The bathymetric distribution of densities was more heterogeneous during summer, characterized by a high intensity of upwelling. The species Thalassionema nitzschioides, Asterionellopsis glacialis, Melosira, Chaetoceros and Leptocylindrus minimus are indicators of upwelling., (Copyright © 2012 Académie des sciences. Published by Elsevier SAS. All rights reserved.)

Published
2012
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18. [Copepods distribution in relation to a Cape Ghir upwelling filament (Moroccan Atlantic coast)].

Author

Salah S, Ettahiri O, Berraho A, Benazzouz A, Elkalay K, and Errhif A

Subjects
Animals, Morocco, Seawater, Copepoda
Abstract

The study of the Cape Ghir upwelling filament (31°N) focalizes to describe the dispersive mechanism, caused by the upwelling. The zooplankton was sampled during five oceanographic cruises conducted between 2008 and 2009. Surface temperature and chlorophyll "a" were also measured along with sampling. The distribution of environmental parameters accused extensions that show the path of the filament. Copepods constitute the largest fraction of zooplankton community and represented by 86 species, majorly dominated by Acartia clausi and Oncaea venusta. A number of species of deep or cold waters have been recorded in the area corresponding to a net resurgence of cold water. The analysis of the copepods distribution allowed to view the path of the filament at different times of the year. The distribution of the species A. clausi, neritic specie was observed in the open ocean, shows a result of this dynamic., (Copyright © 2011 Académie des sciences. Published by Elsevier SAS. All rights reserved.)

Published
2012
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19. Multiregional periodic matrix for modeling the population dynamics of sardine (Sardina pilchardus) along the moroccan atlantic coast: management elements for fisheries.

Author

Serghini M, Boutayeb A, Auger P, Charouki N, Ramzi A, Ettahiri O, and Tchuente M

Subjects
Animals, Atlantic Ocean, Morocco, Population Dynamics, Animal Migration, Fisheries methods, Fishes growth & development, Models, Biological
Abstract

In this paper, we present a deterministic time discrete mathematical model based on multiregional periodic matrices to describe the dynamics of Sardina pilchardus in the Central Atlantic area of the Moroccan coast. This model deals with two stages (immature and mature) and three spatial zones where sardines are supposed to migrate from one zone to another. The population dynamics is described by an autonomous recurrence equation N(t + 1) = A.N(t), where A is a positive matrix whose entries are estimated using data collected during biannual acoustic surveys carried out from 2001 to 2003 onboard the Norwegian research vessel "Dr Fridtjof Nansen". The dominant eigenvalue lambda of A that gives the long-term growth rate of fish population is smaller than one. This agrees with the stock decrease observed in the data collected. We show that lambda is highly sensitive to the recruitment rate and much less sensitive to the reproduction rate. These results can clearly be used to define an efficient scenario in order to fight for instance against a stock decrease.

Published
2009
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