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Cephalopods in the stomach of a sperm whale stranded between the islands of Terschelling and Ameland, southern North Sea
Clarke, M.R. (1997). Cephalopods in the stomach of a sperm whale stranded between the islands of Terschelling and Ameland, southern North Sea, in: Jacques, G. et al. (Ed.) Potvissterfte in de Noordzee: wetenschap en beheer = Sperm whale deaths in the North Sea: science and management. Bulletin van het Koninklijk Belgisch Instituut voor Natuurwetenschappen. Biologie = Bulletin de l'Institut Royal des Sciences Naturelles de Belgique. Biologie, 67(Suppl.): pp. 53-55
In: Jacques, G.; Lambertsen, R.H. (Ed.) (1997). Potvissterfte in de Noordzee: wetenschap en beheer = Sperm whale deaths in the North Sea: science and management. Bulletin van het Koninklijk Belgisch Instituut voor Natuurwetenschappen. Biologie = Bulletin de l'Institut Royal des Sciences Naturelles de Belgique. Biologie, 67(Suppl.). Koninklijk Belgisch Instituut voor Natuurwetenschappen: Brussel. 133 + synthese (dutch) pp., more
In: Bulletin van het Koninklijk Belgisch Instituut voor Natuurwetenschappen. Biologie = Bulletin de l'Institut Royal des Sciences Naturelles de Belgique. Biologie. Koninklijk Belgisch Instituut voor Natuurwetenschappen: Bruxelles. ISSN 0374-6429, more
Peer reviewed article  

Also published as
  • Clarke, M.R. (1997). Cephalopods in the stomach of a sperm whale stranded between the islands of Terschelling and Ameland, southern North Sea. Bull. Kon. Belg. Inst. Natuurwet. Biologie 67(suppl.): 53-55, more

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Keywords
    Cephalopods; Feeding; Feeding behaviour; Migration; Migration; Migration; Migrations; Squids; SQUIDs; Stranding; ANE, Netherlands [Marine Regions]; ANE, North Sea, Southern Bight [Marine Regions]; Marine

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  • Clarke, M.R.

Abstract
    A sub-adult male sperm whale measuring 14.8 m in length was found stranded in the southern North Sea between the islands of Terschelling and Ameland, the Netherlands, on 3 November 1994. The first stomach contained two coils of hemp rope, the second stomach contained beaks of cephalopods, nearly all of which were collected and examined. Of these, 2,010 were lower beaks; 2,000 were identified as Gonatus fabricii (Lichtenstein, 1818), seven as Teuthowenia megalops (Prosch, 1849) and three as the octopod Alloposus mollis Verrill, 1880 (= Haliphron atlanticus Steenstrup, 1859). The predominance of Gonatus and lack of many North Atlantic species strongly suggests that the whale had last fed in the Norwegian Sea at least three days before stranding, and had migrated over about 600 miles due South, instead of by the usual path to the West of the British Isles. Comparisons are made of the size of the beaks with those collected from sperm whales caught off Iceland and from two bottlenosed whales stranded on the coasts of the Faroes and Denmark.

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