Food and feeding habits of cod (Gadus morhua) on the Faroe Bank

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Abstract

Data from ten bottom surveys on the Faroe Bank during the years 1994-1998 are used to describe the feeding habits of cod on the Faroe Bank. Cod are clearly omnivorous in their diet. Overall, fish were found in 82% of the stomachs, accounting for 59% of the food by weight, but just 35% of the food items by number. Of the fish, lesser sandeel was the most common, making up 78% of the fish biomass consumed. Cannibalism was practically non-existent. In some years, the squid Loligo forbesi formed an important component of the diet, was the main food and identified in up to 64% of the stomachs, and constituting 60% by weight of the diet; in other years, it was a negligible part. Crustaceans were found in 48% of the stomachs, accounting for 16% by weight but as much as 44% by numbers. The diet of cod shifts ontogenetically, with stomach fullness greater and nutrient quality of prey higher for cod
Original languageEnglish
Pages (from-to)1909-1917
Number of pages9
JournalICES Journal of Marine Science
Volume68
Issue number9
DOIs
Publication statusPublished - Sept 2011

Keywords

  • Faroe Bank
  • Gadus morhua
  • cod
  • condition factor
  • diet
  • stomach contents
  • stomach fullness index (SFI)
  • temporal variation

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