Feeding behaviour of cod, Gadus morhua : activity rhythm and chemically mediated food search

  title={Feeding behaviour of cod,
 Gadus morhua
 : activity rhythm and chemically mediated food search},
  author={Svein L{\o}kkeborg},
  journal={Animal Behaviour},
I studied the feeding behaviour of cod in late spring in a fjord in northern Norway by means of a stationary positioning system. The activity rhythm of eight cod tagged with acoustic transmitters was observed continuously for 3-8 days in terms of swimming speed and size of area occupied. I studied responses to food odour by setting a line with mackerel baits in the experimental area. The cod had a diurnal rhythm of swimming activity with a slightly lower swimming speed during a 5-h period at… 
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    Philosophical Transactions of the Royal Society B: Biological Sciences
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