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| Ellis, J. R.; Phillips, S. R. Mccully; Poisson, Francois. |
| There is a need to better understand the survivorship of discarded fishes, both for commercial stocks and species of conservation concern. Within European waters, the landing obligations that are currently being phased in as part of the European Union's reformed common fisheries policy means that an increasing number of fish stocks, with certain exceptions, should not be discarded unless it can be demonstrated that there is a high probability of survival. This study reviews the various approaches that have been used to examine the discard survival of elasmobranchs, both in terms of at-vessel mortality (AVM) and post-release mortality (PRM), with relevant findings summarized for both the main types of fishing gear used and by taxonomic group. Discard... |
| Tipo: Text |
Palavras-chave: Batoids; By-catch; Discards; Dogfish; Sharks; Survival. |
| Ano: 2017 |
URL: https://archimer.ifremer.fr/doc/00358/46902/46980.pdf |
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| Martin, Corinne; Vaz, Sandrine; Ellis, J. R.; Lauria, Valentina; Coppin, Franck; Carpentier, Andre. |
| Generalised Linear Models, combined with a Geographic Information System, were used to map the habitats of ten demersal elasmobranch taxa (five skates, four sharks and a stingray) in the eastern English Channel, based on an annual fishery-independent bottom trawl survey conducted each October, and covering 21 years. Habitat models showing mean density levels were developed for the most frequently occurring species, whilst binomial occurrence habitat models were built for less frequent species. The main predictors of elasmobranch habitats in the eastern English Channel were depth, bed shear stress and salinity, followed by seabed sediment type and temperature. Habitat maps highlighted contrasting habitat utilisation across species. Raja clavata, and to a... |
| Tipo: Text |
Palavras-chave: Channel Ground Fish Survey; Chondrichthyes; Elasmobranchii; GLM; Grande Ouverture Verticale; Trawl survey. |
| Ano: 2012 |
URL: http://archimer.ifremer.fr/doc/00086/19730/17478.pdf |
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