The stock, size and changes in the growth rate of the Northwest Atlantic mackerel (Scomber scombrus L.) in 1971-1983

The influence of the year class size (in numbers) and a stock biomass on the growth rate of 13 cohorts (1971-1983) of the Northwest Atlantic mackerel were investigated. It has been stated that the year class size actually influenced the growth of the examined fish only in the first year of life. The...

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Bibliographic Details
Published in:Acta Ichthyologica et Piscatoria
Main Author: Neja,Z.
Format: Article in Journal/Newspaper
Language:English
Published: Pensoft Publishers 1995
Subjects:
Online Access:https://doi.org/10.3750/AIP1995.25.1.10
https://aiep.pensoft.net/article/25533/
https://aiep.pensoft.net/article/25533/download/pdf/
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Summary:The influence of the year class size (in numbers) and a stock biomass on the growth rate of 13 cohorts (1971-1983) of the Northwest Atlantic mackerel were investigated. It has been stated that the year class size actually influenced the growth of the examined fish only in the first year of life. The stock biomass was strongly correlated with the growth rate during the first and the second years of life. The density-dependent growth in 3-7 years old mackerel was not observed.