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Herring larval surveys in the Celtic Sea in 1981/82
Barnwall, E. Cullen, A. Grainger, R. J.
Barnwall, E.
Cullen, A.
Grainger, R. J.
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1982
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International Council for the Exploration of the Sea
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Abstract
The distributions of herring larvae sampled on ten cruises off the south coast of Ireland during the 1981/82 spawning season are described. A new larval abundance index, which is based on the abundances of <10mm larvae prior to 15 December and on <11mm larvae afterwards,has been calculated for the last four seasons. This index shows an increase each year since 1978/79 indicating that the spawning stock biomass has also increased.
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Grainger, R. J., Barnwall, E., & Cullen, A. (1982). Herring larval surveys in the Celtic Sea in 1981/82. ICES CM 1982/H:38.