Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/49440
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dc.contributor.authorSantos, M. B.en_US
dc.contributor.authorPierce, G. J.en_US
dc.contributor.authorBoyle, P. R.en_US
dc.contributor.authorReid, R. J.en_US
dc.contributor.authorRoss, H. M.en_US
dc.contributor.authorPatterson, I. A.P.en_US
dc.contributor.authorKinze, C. C.en_US
dc.contributor.authorTougaard, S.en_US
dc.contributor.authorLick, R.en_US
dc.contributor.authorPiatkowski, U.en_US
dc.contributor.authorHernández-García, V.en_US
dc.date.accessioned2018-11-24T07:25:37Z-
dc.date.available2018-11-24T07:25:37Z-
dc.date.issued1999en_US
dc.identifier.issn0171-8630en_US
dc.identifier.urihttp://hdl.handle.net/10553/49440-
dc.description.abstractStomach contents of 17 sperm whales Physeter macrocephalus stranded in Scotland and Denmark during 1990-96 were analysed. All were sub-adult or adult males and stranded between November and March. They had presumably entered the North Sea during their southward migration from feeding grounds in Arctic waters. Other studies indicate that the majority of the whales were apparently healthy. The diet of these whales was found to consist almost entirely of cephalopods, principally squid of the genus Gonatus (hereafter 'Gonatus', but probably G. fabricii, an oceanic species characteristic of Arctic waters). The other prey species identified were also mostly oceanic cephalopods: the squids Histioteuthis bonnellii, Teuthowenia megalops and Todarodes sagittatus and the octopus Haliphron atlanticus. Although these results are consistent with other recent studies in the area based on single stranded whales, they differ from results of work on whales caught during commercial whaling operations in Icelandic waters (1960s to 1980s) in that little evidence of predation on fish was found in the present study. Remains of single individuals of the veined squid Loligo forbesi, the northern octopus Eledone cirrhosa and the saithe Pollachius virens provided the only possible evidence of feeding in the North Sea. We infer that sperm whales do not enter the North Sea to feed. The timing, and large and uniform sizes of the Gonatus species eaten (most had mantle lengths in the range 195 to 245 mm), as estimated from measurements of the lower beaks, and the seasonality of the strandings is consistent with the whales having fed on mature squid, possibly spawning concentrations--as has recently been reported for bottlenose whales. Assuming that the diet recorded in this study was representative of sperm whales during the feeding season, as much as 500000 t of Gonatus could be removed by sperm whales in Norwegian waters each year and up to 3 times that figure from the eastern North Atlantic as a whole. Evidence from other studies indicates that Gonatus is an important food resource for a wide range of marine predators in Arctic waters.en_US
dc.languageengen_US
dc.publisher0171-8630
dc.relation.ispartofMarine Ecology - Progress Seriesen_US
dc.sourceMarine Ecology Progress Series [ISSN 0171-8630], v. 183, p. 281-294en_US
dc.subject240119 Zoología marinaen_US
dc.subject.otherFeeding ecologyen_US
dc.subject.otherCetaceaen_US
dc.subject.otherStrandingen_US
dc.subject.otherGonatusen_US
dc.subject.otherCephalopodaen_US
dc.titleStomach contents of sperm whales Physeter macrocephalus stranded in the North Sea 1990-1996en_US
dc.typeinfo:eu-repo/semantics/Articlees
dc.typeArticlees
dc.identifier.doi10.3354/meps183281
dc.identifier.scopus0033529350-
dc.identifier.isi000081803500026
dc.contributor.authorscopusid55303663600-
dc.contributor.authorscopusid7202450331-
dc.contributor.authorscopusid15824940900-
dc.contributor.authorscopusid55976952500-
dc.contributor.authorscopusid7202351764-
dc.contributor.authorscopusid7003689898-
dc.contributor.authorscopusid35610440400-
dc.contributor.authorscopusid7005963778-
dc.contributor.authorscopusid7003611547-
dc.contributor.authorscopusid6603733921-
dc.contributor.authorscopusid6603374505-
dc.description.lastpage294-
dc.description.firstpage281-
dc.relation.volume183-
dc.investigacionCienciasen_US
dc.type2Artículoen_US
dc.contributor.daisngid440484
dc.contributor.daisngid81865
dc.contributor.daisngid291565
dc.contributor.daisngid79454
dc.contributor.daisngid716531
dc.contributor.daisngid1623110
dc.contributor.daisngid1539852
dc.contributor.daisngid116630
dc.contributor.daisngid5421037
dc.contributor.daisngid460453
dc.contributor.daisngid2633854
dc.utils.revisionen_US
dc.contributor.wosstandardWOS:Santos, MB
dc.contributor.wosstandardWOS:Pierce, GJ
dc.contributor.wosstandardWOS:Boyle, PR
dc.contributor.wosstandardWOS:Reid, RJ
dc.contributor.wosstandardWOS:Ross, HM
dc.contributor.wosstandardWOS:Patterson, IAP
dc.contributor.wosstandardWOS:Kinze, CC
dc.contributor.wosstandardWOS:Tougaard, S
dc.contributor.wosstandardWOS:Lick, R
dc.contributor.wosstandardWOS:Piatkowski, U
dc.contributor.wosstandardWOS:Hernandez-Garcia, V
dc.date.coverdateJulio 1999
dc.identifier.ulpgces
dc.description.jcr2,017
dc.description.jcrqQ1
item.fulltextCon texto completo-
item.grantfulltextopen-
crisitem.author.fullNameHernández García, Vicente Carmelo-
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