Stomach contents of cetaceans stranded in the Canary Islands 1996-2006

R. Fernandez, M. B. Santos Vazquez, M. Carrillo, M. Tejedor, G. J. Pierce

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

Stomach contents were analysed from 23 cetaceans, including individuals Of 12 species from the families Delphinidae, Physeteridae, Kogiidae and Ziphiidae, stranded between 1996 and 2006 in the Canary Islands. Cephalopod mandibles (beaks) were found in 2 1 stomachs and fish remains (otoliths and jaw bones) appeared in 4 stomachs. Two stomachs contained only eye lenses. Cephalopods eaten by dolphins were mainly from the families Ommastrephidae, Sepiidae and Enoploteuthidae, whereas whales had mainly taken specimens of the oceanic squid families Histiotheutidae and Cranchiidae. Fish remains included a pelagic species (i.e. garfish, Belone belone) in dolphin stomachs and bathypelagic (i.e. black scabbard fish, Aphanopus carbo, lantern fish, Lampadena luminosa) and demersal species (Lophius sp.) in a pygmy sperm whale (Kogia breviceps) stomach. Most of the prey species identified are not of commercial interest but one of the sperm whales (Physeter macrocephalus) contained a fishing hook among the stomach contents. Five (22%) of the cetaceans examined had also plastic debris in their stomachs, with big plastic items being taken by deep diving teuthophagous whales.

Original languageEnglish
Pages (from-to)873-883
Number of pages11
JournalJournal of the Marine Biological Association of the United Kingdom
Volume89
Issue number5
Early online date20 Apr 2009
DOIs
Publication statusPublished - Aug 2009

Keywords

  • feeding
  • Canary islands
  • cetaceans
  • cephalopods
  • plastic
  • whale ziphius-cavirostris
  • Northeast Atlantic
  • feeding ecology
  • stenella-coeruleoalba
  • striped dolphin
  • diet
  • waters
  • sea
  • information

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