Fishing effort alternatives for the management of demersal fisheries in the western Mediterranean
Management alternatives based on fishing effort for the demersal fisheries in the western Mediterranean were tested, with the novelty of examining management alternatives at temporal scales smaller than one year. Nine scenarios were considered on the basis of input control: decrease in the number of...
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Consejo Superior de Investigaciones Científicas
2019-12-01
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doaj-86022795f52441afad42a5420b8989122021-05-05T13:49:32ZengConsejo Superior de Investigaciones CientíficasScientia Marina0214-83581886-81342019-12-0183429330410.3989/scimar.04937.29B1790Fishing effort alternatives for the management of demersal fisheries in the western MediterraneanPaloma Martín0https://orcid.org/0000-0002-5665-2695Francesc Maynou1https://orcid.org/0000-0001-7200-6485Mariona Garriga-Panisello2https://orcid.org/0000-0002-1869-3074John Ramírez3https://orcid.org/0000-0002-0262-8200Laura Recasens4https://orcid.org/0000-0002-2821-1796Institut de Ciències del Mar, CSICInstitut de Ciències del Mar, CSICInstitut de Ciències del Mar, CSICInstitut de Ciències del Mar, CSICInstitut de Ciències del Mar, CSICManagement alternatives based on fishing effort for the demersal fisheries in the western Mediterranean were tested, with the novelty of examining management alternatives at temporal scales smaller than one year. Nine scenarios were considered on the basis of input control: decrease in the number of fishing days, which may correspond to cessation of activity of vessels or lower activity of the fleet; and implementation of seasonal closures of one-, two- and three-month duration in winter, spring, summer and autumn. The approach is based on a multispecies and multigear bioeconomic model. We selected a total of ten species (Merluccius merluccius, Nephrops norvegicus, Mullus barbatus, Mullus surmuletus, Parapenaeus longirostris, Lophius piscatorius, Lophius budegassa, Aristeus antennatus, Phycis blennoides and Lepidorhombus boscii) and seven fleets, defined as a combination of fishing gear (bottom trawl, entangling nets and longline) and fleet segment. A similar decrease in F is achieved with a 20% reduction of fishing effort (days) or with two- to three-month closures. Maximum Sustainable Yield (MSY) for all stocks would be achieved only with such a drastic reduction of fishing effort ( > 80% of fishing days by the end of the five years of simulation) that, in practice, its application can be considered unrealistic, since it would represent a very low activity of all fishing fleets over the year.http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1826demersal fisheriesfisheries managementfishing effortwestern mediterranean |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Paloma Martín Francesc Maynou Mariona Garriga-Panisello John Ramírez Laura Recasens |
spellingShingle |
Paloma Martín Francesc Maynou Mariona Garriga-Panisello John Ramírez Laura Recasens Fishing effort alternatives for the management of demersal fisheries in the western Mediterranean Scientia Marina demersal fisheries fisheries management fishing effort western mediterranean |
author_facet |
Paloma Martín Francesc Maynou Mariona Garriga-Panisello John Ramírez Laura Recasens |
author_sort |
Paloma Martín |
title |
Fishing effort alternatives for the management of demersal fisheries in the western Mediterranean |
title_short |
Fishing effort alternatives for the management of demersal fisheries in the western Mediterranean |
title_full |
Fishing effort alternatives for the management of demersal fisheries in the western Mediterranean |
title_fullStr |
Fishing effort alternatives for the management of demersal fisheries in the western Mediterranean |
title_full_unstemmed |
Fishing effort alternatives for the management of demersal fisheries in the western Mediterranean |
title_sort |
fishing effort alternatives for the management of demersal fisheries in the western mediterranean |
publisher |
Consejo Superior de Investigaciones Científicas |
series |
Scientia Marina |
issn |
0214-8358 1886-8134 |
publishDate |
2019-12-01 |
description |
Management alternatives based on fishing effort for the demersal fisheries in the western Mediterranean were tested, with the novelty of examining management alternatives at temporal scales smaller than one year. Nine scenarios were considered on the basis of input control: decrease in the number of fishing days, which may correspond to cessation of activity of vessels or lower activity of the fleet; and implementation of seasonal closures of one-, two- and three-month duration in winter, spring, summer and autumn. The approach is based on a multispecies and multigear bioeconomic model. We selected a total of ten species (Merluccius merluccius, Nephrops norvegicus, Mullus barbatus, Mullus surmuletus, Parapenaeus longirostris, Lophius piscatorius, Lophius budegassa, Aristeus antennatus, Phycis blennoides and Lepidorhombus boscii) and seven fleets, defined as a combination of fishing gear (bottom trawl, entangling nets and longline) and fleet segment. A similar decrease in F is achieved with a 20% reduction of fishing effort (days) or with two- to three-month closures. Maximum Sustainable Yield (MSY) for all stocks would be achieved only with such a drastic reduction of fishing effort ( > 80% of fishing days by the end of the five years of simulation) that, in practice, its application can be considered unrealistic, since it would represent a very low activity of all fishing fleets over the year. |
topic |
demersal fisheries fisheries management fishing effort western mediterranean |
url |
http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1826 |
work_keys_str_mv |
AT palomamartin fishingeffortalternativesforthemanagementofdemersalfisheriesinthewesternmediterranean AT francescmaynou fishingeffortalternativesforthemanagementofdemersalfisheriesinthewesternmediterranean AT marionagarrigapanisello fishingeffortalternativesforthemanagementofdemersalfisheriesinthewesternmediterranean AT johnramirez fishingeffortalternativesforthemanagementofdemersalfisheriesinthewesternmediterranean AT laurarecasens fishingeffortalternativesforthemanagementofdemersalfisheriesinthewesternmediterranean |
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