Male deep-sea shrimps Aristeus antennatus at fishing grounds: growth and first evaluation of recruitment by multilocus-genotyping
dc.contributor.author
dc.date.accessioned
2021-02-09T10:20:50Z
dc.date.available
2021-02-09T10:20:51Z
dc.date.issued
2021-02-04
dc.identifier.issn
2075-1729
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dc.description.abstract
The population biology of the deep-sea shrimp Aristeus antennatus, as with other exploited demersal species, is usually studied using data from fishery statistics. Such statistical analyses have shown female-biased sex ratios during the spawning season in this species. Because the abundance of males increases at greater depths that are not exploited by fisheries (virgin grounds), knowledge on their recruitment is limited. Here, the growth and recruitment of A. antennatus males at fishing grounds was evaluated. This was achieved by integrating information on previously identified breeding behaviours and by tracing the young-of-year cohort through genotyping at 10 microsatellite loci. Using a codend and a codend cover with distinct meshed windows, four groups of males were collected in winter and in a subsequent spawning summer season. Summer collections were mostly composed of pre-adult males, reaching sizes that are to be expected from the growth of winter juveniles; however, many specimens also originated from nearby grounds. This result indicates the horizontal dispersal of male juveniles via intermediate and deep oceanographic currents. Such dispersal complements passive larval dispersal in surface waters, and contributes to the weak genetic divergence among regional fishing grounds. These features could be shared by other deep-sea crustacean and fish species, and should be considered for the sustainable exploitation of demersal fisheries
dc.description.sponsorship
This work was supported by a grant from Spanish Ministerio de Economia y Competitividad
(CTM2014-54648-C2-2-R) to M.I.R. L.P. and M.A. benefited from predoctoral fellowship from the
Universitat de Girona (BR2014 and IFUdG2018, respectively)
dc.format.mimetype
application/pdf
dc.language.iso
eng
dc.publisher
MDPI (Multidisciplinary Digital Publishing Institute)
dc.relation
info:eu-repo/grantAgreement/MINECO//CTM2014-54648-C2-2-R/ES/CONECTIVIDAD POBLACIONAL EN LA GAMBA ROSADA, ARISTEUS ANTENNATUS, EN EL MEDITERRANEO NOROCCIDENTAL ENTRE EL GOLFO DE LEON Y EL GOLFO DE VALENCIA.-FLUJO GENICO./
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Reproducció digital del document publicat a: https://doi.org/10.3390/life11020116
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Life-Basel, 2021, vol. 11, núm. 2, p. 116
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Articles publicats (D-B)
dc.rights
Reconeixement 4.0 Internacional
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dc.source
Abras, Alba García Marín, José Luis Heras Mena, Sandra Vera Rodríguez, Manuel Agulló, Melania Planella Albí, Laia Roldán Borassi, María Inés 2021 Male deep-sea shrimps Aristeus antennatus at fishing grounds: growth and first evaluation of recruitment by multilocus-genotyping Life-Basel 11 2 116
dc.subject
dc.title
Male deep-sea shrimps Aristeus antennatus at fishing grounds: growth and first evaluation of recruitment by multilocus-genotyping
dc.type
info:eu-repo/semantics/article
dc.rights.accessRights
info:eu-repo/semantics/openAccess
dc.type.version
info:eu-repo/semantics/publishedVersion
dc.identifier.doi
dc.identifier.idgrec
032955
dc.contributor.funder
dc.type.peerreviewed
peer-reviewed
dc.relation.ProjectAcronym