Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 532028
Title Exploring habitat credits to manage the benthic impact in a mixed fishery
Author(s) Batsleer, J.; Marchal, P.; Vaz, S.; Vermard, V.; Rijnsdorp, Ad; Poos, J.J.
Source Marine Ecology Progress Series 586 (2018). - ISSN 0171-8630 - p. 167 - 179.
DOI https://doi.org/10.3354/meps12392
Department(s) IMARES Onderzoeksformatie
WIAS
Publication type Refereed Article in a scientific journal
Publication year 2018
Keyword(s) Fleet dynamics - Dynamic state variable modelling - TAC - Total allowable catch - Mixed fisheries - Eastern English Channel - Plaice - Cod
Abstract 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.
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