Community Research and Development Information Service - CORDIS

Sensitivity analysis to recognise key forcing factors determining cod vertical movement behaviour

It became obvious very early on in the project that the cod swim bladder imposed major constraints on vertical migration both by limiting vertical movement distances and on the energy expenditure budget of the cod. It was therefore necessary to develop a complete dynamic bio-energetic model of the cod swim bladder.

Further developmental work has taken place on a vertical movement model for cod in the Barents Sea and for parameterising this model for other ecosystems. The model is a detailed bioenergetic model aimed at investigating the effect of different factors on the vertical positioning strategies in adult cod. The model has been completed successfully for cod in the Barents Sea, and is being parameterised for cod in the North Sea and the Baltic Sea.

Reported by

CENTRE FOR THE ENVIRONMENT, FISHERIES & AQUACULTURE SCIENCE
LOWESTOFT LABORATORY, PAKEFIELD ROAD
NR 33 0HT LOWESTOFT
United Kingdom
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