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Use of avoidance behaviours to reduce the economic impacts of the EU Landing Obligation: the case study of a mixed trawl fishery ArchiMer
Pointin, Fabien; Daurès, Fabienne; Rochet, Marie-joelle.
The EU Landing Obligation (LO) is designed to reduce bycatch (i.e. unwanted catch) through more selective fishing practices, such as avoidance behaviours which consist in allocating fishing effort to other species, fishing grounds or seasons. Incentives for fishers to change their behaviours depend on their economic performances as well as their ability to avoid bycatch. Changes in economic performances under the LO are evaluated based on cost and revenue equations. The nested grid method is then used to explore the spatial and temporal distribution of landings and discards, and to suggest alternative effort allocation to avoid bycatch. This article is focussed specifically on the French otter trawl fishery in the eastern English Channel and southern North...
Tipo: Text Palavras-chave: Avoidance behaviours; Choke species; Economic incentives; Landing Obligation; Nested grid; Otter trawl fishery.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00486/59811/67505.pdf
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A method to address the non-random spatial distribution of on-board observer data to map landings and discards ArchiMer
Pointin, Fabien; Cornou, Anne-sophie; Prod'Homme, Romain; Taupin, Nicolas; Rochet, Marie-joelle.
he Landing Obligation is legislation meant to gradually reduce discards in European fisheries from 2015. Identifying spatial patterns of landings and discards is an important element in mitigating the effects of this legislation on fishing activity. On-board observer data have already been used to address this issue based on models involving statistical assumptions in relation to the non-random spatial distribution of data, which may cause errors in the parameters of interest. An alternative non-model-based mapping method using nested grids is applied to explore the spatial distribution of landings and discards for two French fishing métiers in the Celtic Sea and western English Channel from 2011 to 2016. The grid fineness and the estimate precision are...
Tipo: Text Palavras-chave: Landings; Discards; On-board observer data; Nested grid; Fishing metier.
Ano: 2018 URL: https://archimer.ifremer.fr/doc/00409/52021/52856.pdf
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