Herring larval surveys in the Celtic Sea and division VIIj in 1982/83

Surveys for herring larvae in the Celtic Sea were conducted between October 1982 ~ and February 1983 for the fifth successive season. To take account of the amalgamation of the Celtic Sea and Div VIIJ herring for assessment purposes and to ascertain if many larval drift into the Irish Sea, the survey grid of previous years was modified for the 1982/83 season. However, because of the nature of the larvae distribution it appears reasonable to compare the larvae index for 1982/83 with those of the previous seasons. The increase in indices since 1978/79 has continued up to 1982/83 indicating a steady, but slow, recovery of the spawning stock. Very few larvae appear to drift into the Irish Sea.

URI

http://hdl.handle.net/10793/1420

Description

Peer-reviewed. This article can be found on the ICES website here: http://www.ices.dk/publications/our-publications/Pages/CM-documents.aspx

Citation

Grainger, R. J., Barnwall, E. and Cullen, A. (1983). Herring larval surveys in the Celtic Sea and division VIIj in 1982/83. ICES CM 1983/H:31.