Exploring habitat credits to manage the benthic impact in a mixed fishery
| Autor: | V. Vermard, Sandrine Vaz, Jurgen Batsleer, Paul Marchal, Adriaan D. Rijnsdorp, Jan Jaap Poos |
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| Přispěvatelé: | Institut national de recherche et de sécurité (Vandoeuvre lès Nancy) (INRS ( Vandoeuvre lès Nancy)), 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), MARine Biodiversity Exploitation and Conservation (UMR MARBEC), Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Institut de Recherche pour le Développement (IRD) |
| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
[SDE.MCG]Environmental Sciences/Global Changes Fishing Cod Aquatic Science 010603 evolutionary biology 01 natural sciences Demersal zone Otter Eastern English Channel Demersal fish Onderzoeksformatie [SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems Total allowable catch Plaice biology.animal Revenue 14. Life underwater Ecology Evolution Behavior and Systematics geography geography.geographical_feature_category Ecology biology Fleet dynamics 010604 marine biology & hydrobiology TAC biology.organism_classification Dynamic state variable modelling Fishery Mixed fisheries Habitat Benthic zone WIAS Environmental science [SDE.BE]Environmental Sciences/Biodiversity and Ecology Channel (geography) |
| Zdroj: | Marine Ecology Progress Series (0171-8630) (Inter-research), 2018-01, Vol. 586, P. 167-179 Marine Ecology Progress Series Marine Ecology Progress Series, Inter Research, 2018, 586, pp.167--179. ⟨10.3354/meps12392⟩ Marine Ecology Progress Series 586 (2018) Marine Ecology Progress Series, 586, 167-179 |
| ISSN: | 1616-1599 0171-8630 |
| DOI: | 10.3354/meps12392 |
| Popis: | International audience; The performance of a combined catch quota and habitat credit system was explored to manage the sustainable exploitation of a mix of demersal fish species and reduce the benthic impacts of bottom trawl fisheries using a dynamic state variable model approach. The model was parameterised for the Eastern English Channel demersal mixed fishery using otter trawls or dredges. Target species differed in their association with habitat types. Restricting catch quota for plaice and cod had a limited effect on benthic impact, except when reduced to very low values, forcing the vessels to stay in port. Quota management had a minimal influence on fishing behaviour and hence resulted in a minimal reduction of benthic impact. Habitat credits may reduce the benthic impacts of the trawl fisheries at a minimal loss of landings and revenue, as vessels are still able to reallocate their effort to less vulnerable fishing grounds, while allowing the fishery to catch their catch quota and maintain their revenue. Only if they are reduced to extremely low levels can habitat credits potentially constrain fishing activities to levels that prevent the fisheries from using up the catch quota for the target species. |
| Databáze: | OpenAIRE |
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