Deep sea benthic assemblages of the Galicia Bank: effects of seamount environmental variables

Deep sea benthic assemblages of the Galicia Bank: effects of seamount environmental variables

Serrano, A. ... et. al.-- XIII International Symposium on Oceanography of the Bay of Biscay. ISOBAY 13, 11-13 April 2012, Santander, Spain

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Main Authors: Serrano, Alberto, Cartes, Joan Enric, Papiol, Vanesa, Ruiz-Villarreal, Manuel
Format: comunicación de congreso biblioteca
Subjects:Vulnerable habitats, Marine protected areas, Benthic assemblages, Seamount, Deep sea,
Online Access:http://hdl.handle.net/10261/94244
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spelling dig-icm-es-10261-942442022-12-22T08:25:02Z Deep sea benthic assemblages of the Galicia Bank: effects of seamount environmental variables Serrano, Alberto Cartes, Joan Enric Papiol, Vanesa Ruiz-Villarreal, Manuel Vulnerable habitats Marine protected areas Benthic assemblages Seamount Deep sea Serrano, A. ... et. al.-- XIII International Symposium on Oceanography of the Bay of Biscay. ISOBAY 13, 11-13 April 2012, Santander, Spain The INDEMARES project deals with the study of 11 marine areas in the Spanish EEZ, aiming to obtain the necessary information to identify valuable areas for Natura 2000 Network. Galicia Bank, a large seamount located at 150 miles far from the west coast of Galicia, is one of these selected areas. This deep seamount has a flat summit with slight slopes from 600 m to the bank break around 1000 m. Deeper 1500 m on its western flank, slope increases sharply until it reaches the abyssal plain 5000 m. Epibenthic fauna was collected with a beam trawl whereas demersal fauna were collected with a GOC73 otter trawl. A total of 372 species were identified until now (113 fishes, 67 crustaceans, 50 cnidarians, 48 molluscs, 28 porifera, 27 echinoderms, 25 annelids and 14 belonging to other taxa). Multivariate analyses show the existence of 4 benthic assemblages. The shallowest one (750–780 m) is dwelled by epibenthic fauna characterised by a still unidentified ophiuroid, the solitary corals Deltocyathus moseleyi and Flabellum chuni, the bivalve Limopsis minuta the fishes Hoplostethus mediterraneus, Mora moro and Lepidion eques, and the crab Cancer bellianus. The second assembla-ge (780–1000 m) is characterised by cold-water coral communities dominated by Lophelia pertusa and Madrepora oculata, and an associated fauna of solitary corals (Desmophyllum dianthus), small crustaceans (Uroptychus spp., Munidopsis spp.) and antipatharians.These two assemblages are located on the flat sedimentary area of the bank summit, with low organic matter content and sandy sediments. The third assemblage, located on the bank break (1000–1100 m), in carbonate sea-floor areas with scarce sedimentary coverage, is typified by benthopelagic shrimps (Systellaspis debilis, Sergia robusta, Aristaeopsis edwardsianus), the sponge Thenea muricata, the urchin Cidaris cidaris, the fish Alepocephalus bairdii and the shark Scymnodon ringens. Finally, the deepest assemblage dwell in muddy sediments of the flanks of the bank (1500–1800 m), and it is dominated by a still unidentified elasipodid holothurid, the giant sea spider Colossendeis colossea and the crab Neolithodes grimaldii, for epibenthos, and for deep slope fishes as Alepocephalus bairdii, Coelorhynchus labiatus, Coryphaenoides guentheri, Conocara macropterum, and Rouleina attrita. The three summit assem-blages are associated to the Mediterranean outflow waters (MOW), whereas the flank assemblage is affected by the Labrador Sea Water (LSW) Peer Reviewed 2012-4-12 2014-03-26T09:59:29Z comunicación de congreso http://purl.org/coar/resource_type/c_5794 XIII International Symposium on Oceanography of the Bay of Biscay. ISOBAY 13. Book of abstracts: 96 (2012) http://hdl.handle.net/10261/94244 http://www.ieo-santander.net/isobay13/program.php none
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
topic Vulnerable habitats
Marine protected areas
Benthic assemblages
Seamount
Deep sea
Vulnerable habitats
Marine protected areas
Benthic assemblages
Seamount
Deep sea
spellingShingle Vulnerable habitats
Marine protected areas
Benthic assemblages
Seamount
Deep sea
Vulnerable habitats
Marine protected areas
Benthic assemblages
Seamount
Deep sea
Serrano, Alberto
Cartes, Joan Enric
Papiol, Vanesa
Ruiz-Villarreal, Manuel
Deep sea benthic assemblages of the Galicia Bank: effects of seamount environmental variables
description Serrano, A. ... et. al.-- XIII International Symposium on Oceanography of the Bay of Biscay. ISOBAY 13, 11-13 April 2012, Santander, Spain
format comunicación de congreso
topic_facet Vulnerable habitats
Marine protected areas
Benthic assemblages
Seamount
Deep sea
author Serrano, Alberto
Cartes, Joan Enric
Papiol, Vanesa
Ruiz-Villarreal, Manuel
author_facet Serrano, Alberto
Cartes, Joan Enric
Papiol, Vanesa
Ruiz-Villarreal, Manuel
author_sort Serrano, Alberto
title Deep sea benthic assemblages of the Galicia Bank: effects of seamount environmental variables
title_short Deep sea benthic assemblages of the Galicia Bank: effects of seamount environmental variables
title_full Deep sea benthic assemblages of the Galicia Bank: effects of seamount environmental variables
title_fullStr Deep sea benthic assemblages of the Galicia Bank: effects of seamount environmental variables
title_full_unstemmed Deep sea benthic assemblages of the Galicia Bank: effects of seamount environmental variables
title_sort deep sea benthic assemblages of the galicia bank: effects of seamount environmental variables
url http://hdl.handle.net/10261/94244
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AT cartesjoanenric deepseabenthicassemblagesofthegaliciabankeffectsofseamountenvironmentalvariables
AT papiolvanesa deepseabenthicassemblagesofthegaliciabankeffectsofseamountenvironmentalvariables
AT ruizvillarrealmanuel deepseabenthicassemblagesofthegaliciabankeffectsofseamountenvironmentalvariables
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