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Title: The distribution of subarctic and boreal deep-sea demersal fish assemblages across environmental gradients of the northwest Atlantic
Authors: Cote, David; Sutton, Jordan; Roul, Sheena; Murua, Hilario; Gonzales, Fernando; Alpoim, Ricardo; Angnatok, Joey
Citation: JOURNAL OF FISH BIOLOGY, 2023, 103, 1419-1429
Abstract: The oceanography of the Labrador Sea is well studied because of its globally important deep-water convection that oxygenates the deep ocean and drives climate-regulating ocean currents. However, little is known about the fish communities that inhabit this area, particularly beyond the depths accessible to standard research surveys and commercial fishing activities. We used baited longline surveys to characterize important components of demersal fish communities across a depth gradient of 200-3000 m and compared these data to a similar dataset collected c. 1200 km to the south in the Flemish Cap Region. We found demersal fish communities in the Labrador Sea to be similar to those of the Flemish Cap Region despite unique oceanography and lower primary productivity in the Labrador Sea. Moreover, both areas had high abundance, biomass, and species richness at intermediate depths that suggests factors beyond depth drive community structure in the deep ocean. These data are important for identifying high-value areas for potential protective measures in the northwest Atlantic and provide necessary data with which to assess potential environmental impacts of extractive industries that are expanding north and to deeper waters.
Issue Date: 2023
Publisher: WILEY
Type: Article; Early Access
DOI: 10.1111/jfb.15549
ISSN: 0022-1112
E-ISSN: 1095-8649
Funder: DG XIV of the European Commission [XIV/1810/C1/94]
Spanish Institute of Oceanography (IEO)
Portuguese Institute of Maritime Research (IPIMAR)
Department of Industry, Agriculture and Fisheries of the Basque Government (AZTI)
Fisheries and Oceans' Marine Conservation Targets program
Appears in Publication types:Artículos científicos

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