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dc.contributor.authorLekanda, Aitor
dc.contributor.authorTolimieri, Nick
dc.contributor.authorNogueira, Adriana
dc.date.accessioned2022-01-04T11:31:08Z-
dc.date.available2022-01-04T11:31:08Z-
dc.date.issued2021
dc.identifierWOS:000715387200019
dc.identifier.citationICES JOURNAL OF MARINE SCIENCE, 2021, 78, 2895-2906
dc.identifier.issn1054-3139
dc.identifier.urihttp://dspace.azti.es/handle/24689/1191-
dc.description.abstractThe distribution and abundance of marine fishes have been changing over the last decades due to climate change and overfishing. We evaluated the status of an important exploited marine ecosystem for one of the largest fisheries in Greenland, Greenland halibut Reinhardtius hippoglossoides, in the offshore slopes of West Greenland. We examined how five ecological indicators changed from 1997 to 2019 under the effect of climate and commercial fishery. The oscillatory tendency of the bottom temperature modified the structure and composition of the demersal fish community. In the shallower zone, the warming bottom temperature favoured high trophic level and warmer water species, and subsequently, an increase in halibut biomass, which reduced the biodiversity. In the middle depth zone, the high biomass of halibut masked increases of less common higher trophic level species. In the deep zone, the drastic reduction of halibut biomass coincided with an increase of high trophic level and colder-water species. Despite the increasing exploitation, especially the mid depth zone, the current fishery did not induce changes to community structure. With the present study, we demonstrate the value of using ecological indicators and estimating spatio-temporal trends to provide a further understanding of the ecosystem status.
dc.language.isoEnglish
dc.publisherOXFORD UNIV PRESS
dc.subjectclimate change
dc.subjectdemersal fish
dc.subjectdominant species
dc.subjectecological indicators
dc.subjectfishing effect
dc.subjectHALIBUT REINHARDTIUS-HIPPOGLOSSOIDES
dc.subjectFISHERIES MANAGEMENT
dc.subjectNORTHWEST ATLANTIC
dc.subjectOCEAN
dc.subjectBIODIVERSITY
dc.subjectCIRCULATION
dc.subjectCOMMUNITIES
dc.subjectINDICATORS
dc.subjectDIVERSITY
dc.subjectGROUNDS
dc.titleThe effects of bottom temperature and fishing on the structure and composition of an exploited demersal fish assemblage in West Greenland
dc.typeArticle
dc.identifier.journalICES JOURNAL OF MARINE SCIENCE
dc.format.page2895-2906
dc.format.volume78
dc.contributor.funderEuropean Union's Horizon 2020 research and innovation programme [869383]
dc.identifier.e-issn1095-9289
dc.identifier.doi10.1093/icesjms/fsab166
Appears in Publication types:Artículos científicos



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