Year-class variations of American plaice (Hippoglossoides platessoides) and yellowtail flounder (Limanda ferruginea) in the Grand Banks and the abundance of other commercial fish

The present study analyses the relationships between the recruitment of a species and adult populations of other species. The hypothesis is that reproduction products of some species may be food for the first stages of other species. In a previous paper we obtained a significant positive correlation...

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Bibliographic Details
Published in:Fisheries Research
Main Authors: Paz, Xabier, Larrañeta, Manuel Gómez
Format: Article in Journal/Newspaper
Language:English
Published: 1992
Subjects:
Centro Oceanográfico de Vigo
Pesquerías
Newfoundland
North Atlantic
Northwest Atlantic
Online Access:http://hdl.handle.net/10508/859
http://hdl.handle.net/10261/327793
Description
Summary:The present study analyses the relationships between the recruitment of a species and adult populations of other species. The hypothesis is that reproduction products of some species may be food for the first stages of other species. In a previous paper we obtained a significant positive correlation between cod year-class size in NAFO Div. 3NO and Americanplaice spawning biomass in Div. 3LNO. Following the same method in this study, positive and significant correlations between plaice recruitment and yellowtail flounder, mackerel and redfish adult biomass values were found, but not between yellowtail recruitment and adult biomass values of the other species studied. These results agree with the idea that the Americanplaice is an integral component of the Grand Bank ecosystem.

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