Biological characteristics of the hydrological landscapes in the Bay of Biscay in spring 2009

Handle URI:
http://hdl.handle.net/10754/563997
Title:
Biological characteristics of the hydrological landscapes in the Bay of Biscay in spring 2009
Authors:
Lezama-Ochoa, Ainhoa; Grados, Daniel; Lebourges-Dhaussy, Anne; Irigoien, Xabier ( 0000-0002-5411-6741 ) ; Chaigneau, Alexis; Bertrand, Arnaud
Abstract:
In the present study we investigated the biogeography of macrozooplankton and fish biomass in the Bay of Biscay. In this region, we defined six different landscapes based on the hydrogeographical characteristics observed in spring 2009. We then related landscape's characteristics and environmental parameters such as light attenuation depth and chlorophyll-a with macrozooplankton and fish acoustic biomass. Hydrodynamic structures together with coastal influences (river discharges, predation pressure and depth preference) and vertical thermohaline structure/mixing (feeding modes and ability to stay in preferred layers) appeared as the main factors determining the biological distribution. Besides, variance partitioning was used to assess the respective roles played by the hydrological environment, the geographical space and the biological environment alone, and their interactions. Results revealed that: (i) macrozooplankton and fish have a preference for different hydrogeographical landscapes; (ii) the association between hydrological conditions and geographical features, i.e. the spatial structure of the hydrological environment, plays a key role in the distribution of macrozooplankton; and (iii) prey-predator relationships have to be taken into account to provide a comprehensive characterization of habitat suitability.
KAUST Department:
Red Sea Research Center (RSRC); Biological and Environmental Sciences and Engineering (BESE) Division; Marine Science Program; Plankton ecology Research Group
Publisher:
Wiley-Blackwell
Journal:
Fisheries Oceanography
Issue Date:
Jan-2015
DOI:
10.1111/fog.12090
Type:
Article
ISSN:
10546006
Appears in Collections:
Articles; Red Sea Research Center (RSRC); Marine Science Program; Biological and Environmental Sciences and Engineering (BESE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorLezama-Ochoa, Ainhoaen
dc.contributor.authorGrados, Danielen
dc.contributor.authorLebourges-Dhaussy, Anneen
dc.contributor.authorIrigoien, Xabieren
dc.contributor.authorChaigneau, Alexisen
dc.contributor.authorBertrand, Arnauden
dc.date.accessioned2015-08-03T12:22:25Zen
dc.date.available2015-08-03T12:22:25Zen
dc.date.issued2015-01en
dc.identifier.issn10546006en
dc.identifier.doi10.1111/fog.12090en
dc.identifier.urihttp://hdl.handle.net/10754/563997en
dc.description.abstractIn the present study we investigated the biogeography of macrozooplankton and fish biomass in the Bay of Biscay. In this region, we defined six different landscapes based on the hydrogeographical characteristics observed in spring 2009. We then related landscape's characteristics and environmental parameters such as light attenuation depth and chlorophyll-a with macrozooplankton and fish acoustic biomass. Hydrodynamic structures together with coastal influences (river discharges, predation pressure and depth preference) and vertical thermohaline structure/mixing (feeding modes and ability to stay in preferred layers) appeared as the main factors determining the biological distribution. Besides, variance partitioning was used to assess the respective roles played by the hydrological environment, the geographical space and the biological environment alone, and their interactions. Results revealed that: (i) macrozooplankton and fish have a preference for different hydrogeographical landscapes; (ii) the association between hydrological conditions and geographical features, i.e. the spatial structure of the hydrological environment, plays a key role in the distribution of macrozooplankton; and (iii) prey-predator relationships have to be taken into account to provide a comprehensive characterization of habitat suitability.en
dc.publisherWiley-Blackwellen
dc.subjectAcousticsen
dc.subjectBay of Biscayen
dc.subjectBiogeographyen
dc.subjectFishen
dc.subjectHorizontal distribution patternsen
dc.subjectHydrological structuresen
dc.subjectMacrozooplanktonen
dc.titleBiological characteristics of the hydrological landscapes in the Bay of Biscay in spring 2009en
dc.typeArticleen
dc.contributor.departmentRed Sea Research Center (RSRC)en
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Divisionen
dc.contributor.departmentMarine Science Programen
dc.contributor.departmentPlankton ecology Research Groupen
dc.identifier.journalFisheries Oceanographyen
dc.contributor.institutionAZTI-Tecnalia, Marine Research Unit, Herrera Kaia Portualdea z/gPasaia, Spainen
dc.contributor.institutionInstituto del Mar del Perú, Esquina Gamarra y Gral Valle s/nCallao Lima, Peruen
dc.contributor.institutionIRD, UMR LEMAR CNRS/IRD/UBO, Plouzané, Franceen
dc.contributor.institutionIRD, LEGOS, MR5566CNES/CNRS/IRD/UPS, 14 av. Edouard BelinToulouse, Franceen
dc.contributor.institutionInstitut de Recherche pour le Developpement (IRD), UMR212 EME IFREMER/IRD/UM2, Av.Jean Monnet BP 171Séte Cedex, Franceen
kaust.authorIrigoien, Xabieren
kaust.authorBertrand, Arnauden
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