Efficient trawl avoidance by mesopelagic fishes causes large underestimation of their biomass

Handle URI:
http://hdl.handle.net/10754/555779
Title:
Efficient trawl avoidance by mesopelagic fishes causes large underestimation of their biomass
Authors:
Kaartvedt, Stein ( 0000-0002-8793-2948 ) ; Staby, A; Aksnes, Dag L. ( 0000-0001-9504-226X )
Abstract:
Mesopelagic fishes occur in all the world’s oceans, but their abundance and consequently their ecological significance remains uncertain. The current global estimate based on net sampling prior to 1980 suggests a global abundance of one gigatonne (109 t) wet weight. Here we report novel evidence of efficient avoidance of such sampling by the most common myctophid fish in the Northern Atlantic, i.e. Benthosema glaciale. We reason that similar avoidance of nets may explain consistently higher acoustic abundance estimates of mesopelagic fish from different parts of the world’s oceans. It appears that mesopelagic fish abundance may be underestimated by one order of magnitude, suggesting that the role of mesopelagic fish in the oceans might need to be revised.
KAUST Department:
Red Sea Research Center (RSRC)
Citation:
Efficient trawl avoidance by mesopelagic fishes causes large underestimation of their biomass 2012, 456:1 Marine Ecology Progress Series
Publisher:
Inter-Research Science Center
Journal:
Marine Ecology Progress Series
Issue Date:
7-Jun-2012
DOI:
10.3354/meps09785
Type:
Article
ISSN:
0171-8630; 1616-1599
Additional Links:
http://www.int-res.com/abstracts/meps/v456/p1-6/
Appears in Collections:
Articles; Red Sea Research Center (RSRC); Red Sea Research Center (RSRC)

Full metadata record

DC FieldValue Language
dc.contributor.authorKaartvedt, Steinen
dc.contributor.authorStaby, Aen
dc.contributor.authorAksnes, Dag L.en
dc.date.accessioned2015-05-26T07:25:16Zen
dc.date.available2015-05-26T07:25:16Zen
dc.date.issued2012-06-07en
dc.identifier.citationEfficient trawl avoidance by mesopelagic fishes causes large underestimation of their biomass 2012, 456:1 Marine Ecology Progress Seriesen
dc.identifier.issn0171-8630en
dc.identifier.issn1616-1599en
dc.identifier.doi10.3354/meps09785en
dc.identifier.urihttp://hdl.handle.net/10754/555779en
dc.description.abstractMesopelagic fishes occur in all the world’s oceans, but their abundance and consequently their ecological significance remains uncertain. The current global estimate based on net sampling prior to 1980 suggests a global abundance of one gigatonne (109 t) wet weight. Here we report novel evidence of efficient avoidance of such sampling by the most common myctophid fish in the Northern Atlantic, i.e. Benthosema glaciale. We reason that similar avoidance of nets may explain consistently higher acoustic abundance estimates of mesopelagic fish from different parts of the world’s oceans. It appears that mesopelagic fish abundance may be underestimated by one order of magnitude, suggesting that the role of mesopelagic fish in the oceans might need to be revised.en
dc.publisherInter-Research Science Centeren
dc.relation.urlhttp://www.int-res.com/abstracts/meps/v456/p1-6/en
dc.rightsArchived with thanks to Marine Ecology Progress Series © 2012 Inter-Research.en
dc.subjectMesopelagic fishen
dc.subjectAvoidance behavioren
dc.subjectTrawlingen
dc.subjectAcousticsen
dc.titleEfficient trawl avoidance by mesopelagic fishes causes large underestimation of their biomassen
dc.typeArticleen
dc.contributor.departmentRed Sea Research Center (RSRC)en
dc.identifier.journalMarine Ecology Progress Seriesen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionDepartment of Biology, University of Oslo, 0316 Oslo, Norwayen
dc.contributor.institutionDepartment of Biology, University of Bergen, 5020 Bergen, Norwayen
dc.contributor.institutionInstitute of Marine Research, 5817 Bergen, Norwayen
kaust.authorKaartvedt, Steinen
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