An approach to estimate the daily ration of cod during intensive feeding based on 24 hour fishery

• Main Authors: Ajiad, Adnan Mosa, Korsbrekke, Knut
• Format: Conference Object
• Language: English
• Published: 1992
• Subjects: Arctic; Barents Sea; Murmansk; Arctic cod; Northeast Arctic cod; Pandalus borealis
• Online Access: http://hdl.handle.net/11250/107553

Interrelations between fish populations in the Barents Sea. Proceedings of the fifth PINRO-IMR Symposium. Murmansk, 12-16 August 1991. A model descnbing gashic evacuation developed by dos Santos (1990) using a modified version of the power exponential model for stomach evacuation is applied to the Northeast Arctic cod stomachs collected during 24 hour fishery. An approach to estimate the individual daily ration that takes into account the effects of initial meal size and fish weight on gastric evacuation rate in the course of 24 hour veriod is presented. The results indicate that the Northeast Arctic cod (length groups 40-44 cm and 45-49 cm) during intensive feeding on deep sea shrimp Pandalus borealis consumed between 0.50 % and 0.58 % of the body weight.