Biological condition and population structure of benthopelagic shrimps in the Galicia Bank (NE Atlantic): Intra- and interspecific patterns

Biological condition and population structure of benthopelagic shrimps in the Galicia Bank (NE Atlantic): Intra- and interspecific patterns

13 pages, 9 figures, 3 tables, supplementary data https://doi.org/10.1016/j.dsr.2020.103434

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Main Authors: Cartes, Joan Enric, Rodríguez-Ribas, R., Papiol, Vanesa, Valeiras, J., Punzón, Antonio, Blanco, Marian, Serrano, Alberto
Other Authors: Agencia Estatal de Investigación (España)
Format: artículo biblioteca
Language:English
Published: Elsevier 2021-02
Subjects:Biological condition, Benthopelagic shrimps, Galicia bank, Seamounts, Recruitment, Size distribution,
Online Access:http://hdl.handle.net/10261/239184
http://dx.doi.org/10.13039/501100011033
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spelling dig-icm-es-10261-2391842022-09-12T10:40:48Z Biological condition and population structure of benthopelagic shrimps in the Galicia Bank (NE Atlantic): Intra- and interspecific patterns Cartes, Joan Enric Rodríguez-Ribas, R. Papiol, Vanesa Valeiras, J. Punzón, Antonio Blanco, Marian Serrano, Alberto Agencia Estatal de Investigación (España) Ministerio de Ciencia, Innovación y Universidades (España) Biological condition Benthopelagic shrimps Galicia bank Seamounts Recruitment Size distribution 13 pages, 9 figures, 3 tables, supplementary data https://doi.org/10.1016/j.dsr.2020.103434 Few studies examined species or ecosystem dynamics on seamounts/banks. The Galicia Bank (GB), the deepest marine Special Area of Conservation in the Spanish Natura 2000 network, is considered a conservation priority because of its highly vulnerable habitats, such as cold-water and bamboo corals. The biological conditions and population structure of benthopelagic shrimps and their relationship with environmental conditions were analyzed during three expeditions over three years. Shrimps were collected by trawling. The gonadosomatic index (GSI) and nutritional condition (hepatosomatic index [HSI]) of shrimps were highest at the summit and deepest depths (>1500 m) sampled, whereas at intermediate depths between ca. 900–1500 m, these values were low. The intermediate depths around ca. 1000 m are influenced by the core of the Mediterranean Outflow Water (MOW), which is characterized by high salinity and low O2 concentrations. The highest GSI were recorded in species (Aristeus antennatus, Plesionika martia) distributed at summit, associated with higher Chl a 1–2 months before sampling at surface. The species with the highest HSI were also linked to Chl a 1–2 months and with higher %OM (generalized additive models, GAM, results). Overall, the studied shrimp species showed viable populations on GB, with reproductors/spawners more markedly distributed over the summit (ca. <900 m). Notably, reproductors of several important commercial species (A. antennatus, P. martia) reached larger sizes and had greater potential fecundity (GSI) than in their optimal distribution areas, out of GB. P. martia recruitment only occurred in 2010, a year characterized by highly negative North Atlantic Oscillation (NAO) indices (−5.96/−5.2), suggesting that benthopelagic shrimps may colonize the GB at a variable periodicity as a probable consequence of the variable availability of zooplankton prey over seamounts. At the same time, species such as Aristaeopsis edwardsiana and P. martia may have some advantages when colonizing habitats in the GB because of the absence of competition from similar, even congeneric species. This was reflected in the patterns of size-depth distribution in the GB compared to mainland areas. In conclusion, the habitats of the GB and, by extension, of seamounts/banks contain rather isolated and small sub-populations, yet these populations can have a reservoir effect that can contribute to eventually restoring the main population core in other areas The authors thank the team members participating in the Ban-Gal cruises of the INDEMARES project (EC contract INDEMARES-LIFE, 07/NAT/E/000732, which financed the project). [...]. English revision was financed by RECOMARES (RTI2018-094066-B-I00) project, within the same line of research of the article. With the funding support of the ‘Severo Ochoa Centre of Excellence’ accreditation (CEX2019-000928-S), of the Spanish Research Agency (AEI) Peer reviewed 2021-04-23T10:03:28Z 2021-04-23T10:03:28Z 2021-02 artículo http://purl.org/coar/resource_type/c_6501 Deep Sea Research - Part I - Oceanographic Research Papers 168: 103434 (2021) 0967-0637 CEX2019-000928-S http://hdl.handle.net/10261/239184 10.1016/j.dsr.2020.103434 http://dx.doi.org/10.13039/501100011033 en #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-094066-B-I00 https://doi.org/10.1016/j.dsr.2020.103434 Sí none Elsevier
institution ICM ES
collection DSpace
country España
countrycode ES
component Bibliográfico
access En linea
databasecode dig-icm-es
tag biblioteca
region Europa del Sur
libraryname Biblioteca del ICM España
language English
topic Biological condition
Benthopelagic shrimps
Galicia bank
Seamounts
Recruitment
Size distribution
Biological condition
Benthopelagic shrimps
Galicia bank
Seamounts
Recruitment
Size distribution
spellingShingle Biological condition
Benthopelagic shrimps
Galicia bank
Seamounts
Recruitment
Size distribution
Biological condition
Benthopelagic shrimps
Galicia bank
Seamounts
Recruitment
Size distribution
Cartes, Joan Enric
Rodríguez-Ribas, R.
Papiol, Vanesa
Valeiras, J.
Punzón, Antonio
Blanco, Marian
Serrano, Alberto
Biological condition and population structure of benthopelagic shrimps in the Galicia Bank (NE Atlantic): Intra- and interspecific patterns
description 13 pages, 9 figures, 3 tables, supplementary data https://doi.org/10.1016/j.dsr.2020.103434
author2 Agencia Estatal de Investigación (España)
author_facet Agencia Estatal de Investigación (España)
Cartes, Joan Enric
Rodríguez-Ribas, R.
Papiol, Vanesa
Valeiras, J.
Punzón, Antonio
Blanco, Marian
Serrano, Alberto
format artículo
topic_facet Biological condition
Benthopelagic shrimps
Galicia bank
Seamounts
Recruitment
Size distribution
author Cartes, Joan Enric
Rodríguez-Ribas, R.
Papiol, Vanesa
Valeiras, J.
Punzón, Antonio
Blanco, Marian
Serrano, Alberto
author_sort Cartes, Joan Enric
title Biological condition and population structure of benthopelagic shrimps in the Galicia Bank (NE Atlantic): Intra- and interspecific patterns
title_short Biological condition and population structure of benthopelagic shrimps in the Galicia Bank (NE Atlantic): Intra- and interspecific patterns
title_full Biological condition and population structure of benthopelagic shrimps in the Galicia Bank (NE Atlantic): Intra- and interspecific patterns
title_fullStr Biological condition and population structure of benthopelagic shrimps in the Galicia Bank (NE Atlantic): Intra- and interspecific patterns
title_full_unstemmed Biological condition and population structure of benthopelagic shrimps in the Galicia Bank (NE Atlantic): Intra- and interspecific patterns
title_sort biological condition and population structure of benthopelagic shrimps in the galicia bank (ne atlantic): intra- and interspecific patterns
publisher Elsevier
publishDate 2021-02
url http://hdl.handle.net/10261/239184
http://dx.doi.org/10.13039/501100011033
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