- -

The Collapse of a Wedge Clam Fishery in the Spanish Mediterranean Coast and Recovery Problems

RiuNet: Institutional repository of the Polithecnic University of Valencia

Share/Send to

Cited by

Statistics

The Collapse of a Wedge Clam Fishery in the Spanish Mediterranean Coast and Recovery Problems

Show simple item record

Files in this item

dc.contributor.author Escriva, Julia es_ES
dc.contributor.author Rodilla, M es_ES
dc.contributor.author Llario, Ferran es_ES
dc.contributor.author Falco, S. es_ES
dc.date.accessioned 2022-07-07T18:03:57Z
dc.date.available 2022-07-07T18:03:57Z
dc.date.issued 2021-04 es_ES
dc.identifier.issn 0730-8000 es_ES
dc.identifier.uri http://hdl.handle.net/10251/183949
dc.description.abstract [EN] In the sandy shores of the Spanish Mediterranean, Donax trunculus (Linnaeus, 1758) has a high commercial interest. In the Gulf of Valencia, poor management of fishing activity led to its closure in June 2015. The objective of this study was to analyze the evolution of the catches of D. trunculus before the closure of the fishery as well as the biomass and density of the population in the months following the closure, plus 2 y later. The area of study was located in the main fishing area of the Gulf of Valencia, which belongs to the fleet of the Gandia Fishermen's Guild. The fishing beds for this clam are found on sandy sediments in shallow waters (between 0 and 2 m). During the 10 y previous to the fishery closure, the annual catch per unit effort of D. trunculus suffered a sharp decrease, falling from values between 37 and 42 (kg small vessel(-1) d(-1)) during the period 2004-2008 to 5.5 in 2014. After the closure, the biomass and density of the wedge clam showed a seasonal pattern, with maximum values in summer, as well as notable differences in densities along the shore in each sampled month. Furthermore, a different size-frequency distribution across depth, with smaller individuals in the shallower areas, was observed. Nevertheless, a general and considerable decline for biomass and density from 2015 (monthly mean of commercial biomass ranged from 24 to 48 kg ha(-1)) to 2017 (from 4 to 13 kg ha-1) was noted. This indicates that the closure did not improve the state of the population. There are several hypotheses that could explain this decline such as overfishing, changes in environmental conditions, higher predation (in benthic and planktonic phases), and the reduction of food availability. Therefore, there would be a need to study them in greater depth, as well as to increase the understanding of the spatial dynamics and connectivity of the Donax beds. es_ES
dc.language Inglés es_ES
dc.publisher BioOne (National Shellfisheries Association) es_ES
dc.relation.ispartof Journal of Shellfish Research es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Clam es_ES
dc.subject Donax trunculus es_ES
dc.subject Bivalve fishery es_ES
dc.subject Population structure es_ES
dc.subject Fishing gear selectivity es_ES
dc.subject.classification TECNOLOGIA DEL MEDIO AMBIENTE es_ES
dc.title The Collapse of a Wedge Clam Fishery in the Spanish Mediterranean Coast and Recovery Problems es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.2983/035.040.0105 es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería Hidráulica y Medio Ambiente - Departament d'Enginyeria Hidràulica i Medi Ambient es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto Universitario de Ingeniería del Agua y del Medio Ambiente - Institut Universitari d'Enginyeria de l'Aigua i Medi Ambient es_ES
dc.description.bibliographicCitation Escriva, J.; Rodilla, M.; Llario, F.; Falco, S. (2021). The Collapse of a Wedge Clam Fishery in the Spanish Mediterranean Coast and Recovery Problems. Journal of Shellfish Research. 40(1):37-47. https://doi.org/10.2983/035.040.0105 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.2983/035.040.0105 es_ES
dc.description.upvformatpinicio 37 es_ES
dc.description.upvformatpfin 47 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 40 es_ES
dc.description.issue 1 es_ES
dc.relation.pasarela S\436844 es_ES


This item appears in the following Collection(s)

Show simple item record