Browsing Brage IMR by Author "Barros, P. de"

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Acoustic estimates of abundance-at-age of juvenile Norwegian spring-spawning herring (Clupea harengus L.) in the Barents Sea from 1983 to 1993

Toresen, Reidar; Barros, P. de (PINRO-IMR Symposium, Conference object, 1995)

The first year-class of Norwegian spring-spawning herring to enter the Barents Sea in significant numbers since the stock collapse in the late 1960'ies was the 1983-cohort. Regular acoustic surveys have been carried out ...
Modelling age-dependent natural mortality of juvenile Norwegian spring-spawning herring (Clupea harengus L.) in the Barents Sea

Barros, P. de; Toresen, Reidar (PINRO-IMR Symposium, Conference object, 1995)

Understanding the patterns of mortality in the juvenile stages is essential for improving current stock assessment procedures. A crucial aspect is at which stage in the life cycle of fish is year-class strength determined. ...