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| Druon, Jean-noel; Fiorentino, Fabio; Murenu, Matteo; Knittweis, Leyla; Colloca, Francesco; Osio, Chato; Merigot, Bastien; Garofalo, Germana; Mannini, Alessandro; Jadaud, Angelique; Sbrana, Mario; Scarcella, Giuseppe; Tserpesi, George; Peristeraki, Panagiota; Carlucci, Roberto; Heikkonen, Jukka. |
| An ecological niche modelling (ENM) approach was developed to model the suitable habitat 36 for the 0-group European hake, Merluccius merluccius L., 1758, in the Mediterranean Sea. 37 The ENM was built combining knowledge on biological traits of hake recruits (e.g. growth, 38 settlement, mobility and feeding strategy) with patterns of selected ecological variables 39 (chlorophyll-a fronts and concentration, bottom depth, sea bottom current and temperature) 40 to highlight favourable nursery habitats. The results show that hake nurseries require stable 41 bottom temperature (11.8-15.0oC), low bottom currents (< 0.034 m.s-1) and a frequent 42 occurrence of productive fronts in low chlorophyll-a areas (0.1-0.9 mg.m-3) to support a 43 successful... |
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| Ano: 2015 |
URL: https://archimer.ifremer.fr/doc/00228/33947/32262.pdf |
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| Gascuel, Didier; Coll, Marta; Fox, Clive; Guenette, Sylvie; Guitton, Jerome; Kenny, Andrew; Knittweis, Leyla; Nielsen, J. Rasmus; Piet, Gerjan; Raid, Tiit; Travers-trolet, Morgane; Shephard, Samuel. |
| Stock-based and ecosystem-based indicators are used to provide a new diagnosis of the fishing impact and environmental status of European seas. In the seven European marine ecosystems covering the Baltic and the North-east Atlantic, (i) trends in landings since 1950 were examined; (ii) syntheses of the status and trends in fish stocks were consolidated at the ecosystem level; and (iii) trends in ecosystem indicators based on landings and surveys were analysed. We show that yields began to decrease everywhere (except in the Baltic) from the mid-1970s, as a result of the over-exploitation of some major stocks. Fishermen adapted by increasing fishing effort and exploiting a wider part of the ecosystems. This was insufficient to compensate for the decrease in... |
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Palavras-chave: Ecosystem approach to fisheries management; Ecosystem indicators; Good environmental status; Marine Strategy Framework Directive; Stock assessment; Trophic level. |
| Ano: 2016 |
URL: http://archimer.ifremer.fr/doc/00201/31256/29910.pdf |
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| Fabri, Marie-claire; Brind'Amour, Anik; Jadaud, Angelique; Galgani, Francois; Vaz, Sandrine; Taviani, Marco; Scarcella, Giuseppe; Canals, Miquel; Sanchez, Anna; Grimalt, Joan; Galil, Bella; Goren, Menachem; Schembri, Patrick; Evans, Julian; Knittweis, Leyla; Cantafaro, Anna-lucia; Fanelli, Emanuela; Carugati, Laura; Danovaro, Roberto. |
| Summary based on the state-of-the-art for the deep Mediterranean Sea with the final aim of identifying knowledge and gaps, descriptor by descriptor (such as lack of data, indicators, thresholds). This document is an analysis of all scientific publications, national and international reports and grey literature available on the implementation of the MSFD to the deep Mediterranean Sea. |
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| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00426/53809/57345.pdf |
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