A method for estimation of predation mortalities on capelin using a cod-capelin model for the Barents Sea

Interrelations between fish populations in the Barents Sea. Proceedings of the fifth PINRO-IMR Symposium. Murmansk, 12-16 August 1991. The Barents Sea capelin stock coliapsed during the period 1983-1986. One of the main factors causing the colIapse was a rapid increase in consumption of capelin by c...

Full description

Bibliographic Details
Main Authors: Bogstad, Bjarte, Tjelmeland, Sigurd
Format: Conference Object
Language:English
Published: 1992
Subjects:
Barents Sea
Murmansk
Online Access:http://hdl.handle.net/11250/107555
Description
Summary:Interrelations between fish populations in the Barents Sea. Proceedings of the fifth PINRO-IMR Symposium. Murmansk, 12-16 August 1991. The Barents Sea capelin stock coliapsed during the period 1983-1986. One of the main factors causing the colIapse was a rapid increase in consumption of capelin by cod, caused by the strong 1983 cod year class. Based on measurements of stomach evacuation ra+es in the appropriate temperature interval and data from a combined Russian-Norwegian stomach sampling programrne, predation mortalities are estimated by the MR multispecies model for the Barents Sea - MULTCPEC. In order to estimate these predation mortalities, cod-capelin interaction parameters and yearly migration parameters for capelin are ako estimated.

Similar Items