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| Chassot, Emmanuel; Bonhommeau, Sylvain; Dulvy, Nicholas K.; Melin, Frederic; Watson, Reg; Gascuel, Didier; Le Pape, Olivier. |
| Primary production must constrain the amount of fish and invertebrates available to expanding fisheries; however the degree of limitation has only been demonstrated at regional scales to date. Here we show that phytoplanktonic primary production, estimated from an ocean-colour satellite (SeaWiFS), is related to global fisheries catches at the scale of Large Marine Ecosystems, while accounting for temperature and ecological factors such as ecosystem size and type, species richness, animal body size, and the degree and nature of fisheries exploitation. Indeed we show that global fisheries catches since 1950 have been increasingly constrained by the amount of primary production. The primary production appropriated by current global fisheries is 17-112% higher... |
| Tipo: Text |
Palavras-chave: Bottom-up; Large Marine Ecosystem; Quantile regression; Sustainable fishing. |
| Ano: 2010 |
URL: http://archimer.ifremer.fr/doc/00002/11294/7836.pdf |
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| Fernandes, Paul G.; Ralph, Gina M.; Nieto, Ana; Criado, Mariana Garcia; Vasilakopoulos, Paraskevas; Maravelias, Christos D.; Cook, Robin M.; Pollom, Riley A.; Kovacic, Marcelo; Pollard, David; Farrell, Edward D.; Florin, Ann-britt; Polidoro, Beth A.; Lawson, Julia M.; Lorance, Pascal; Uiblein, Franz; Craig, Matthew; Allen, David J.; Fowler, Sarah L.; Walls, Rachel H. L.; Comeros-raynal, Mia T.; Harvey, Michael S.; Dureuil, Manuel; Biscoito, Manuel; Pollock, Caroline; Phillips, Sophy R. Mccully; Ellis, Jim R.; Papaconstantinou, Constantinos; Soldo, Alen; Keskin, Cetin; Knudsen, Steen Wilhelm; Gil De Sola, Luis; Serena, Fabrizio; Collette, Bruce B.; Nedreaas, Kjell; Stump, Emilie; Russell, Barry C.; Garcia, Silvia; Afonso, Pedro; Jung, Armelle B. J.; Alvarez, Helena; Delgado, Joao; Dulvy, Nicholas K.; Carpenter, Kent E.. |
| Europe has a long tradition of exploiting marine fishes and is promoting marine economic activity through its Blue Growth strategy. This increase in anthropogenic pressure, along with climate change, threatens the biodiversity of fishes and food security. Here, we examine the conservation status of 1,020 species of European marine fishes and identify factors that contribute to their extinction risk. Large fish species (greater than 1.5 m total length) are most at risk; half of these are threatened with extinction, predominantly sharks, rays and sturgeons. This analysis was based on the latest International Union for Conservation of Nature (IUCN) European regional Red List of marine fishes, which was coherent with assessments of the status of fish stocks... |
| Tipo: Text |
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| Ano: 2017 |
URL: http://archimer.ifremer.fr/doc/00416/52739/53608.pdf |
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| Chassot, Emmanuel; Bonhommeau, Sylvain; Reygondeau, Gabriel; Nieto, Karen; Polovina, Jeffrey J.; Huret, Martin; Dulvy, Nicholas K.; Demarcq, Herve. |
| Satellite remote sensing (SRS) of the marine environment has become instrumental in ecology for environmental monitoring and impact assessment, and it is a promising tool for conservation issues. In the context of an ecosystem approach to fisheries management (EAFM), global, daily, systematic, high-resolution images obtained from satellites provide a good data source for incorporating habitat considerations into marine fish population dynamics. An overview of the most common SRS datasets available to fishery scientists and state-of-the-art data-processing methods is presented, focusing on recently developed techniques for detecting mesoscale features such as eddies, fronts, filaments, and river plumes of major importance in productivity enhancement and... |
| Tipo: Text |
Palavras-chave: Ecosystem approach; Fisheries; Mesoscale; Satellite; Tracking. |
| Ano: 2011 |
URL: http://archimer.ifremer.fr/doc/00031/14188/11468.pdf |
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