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Studies on feeding, growth and production of a recruited inshore population of Pleuronectes platessa (L.) at East Anglesey, North Wales
Author(s) -
Basimi R. A.,
Grove D. J.
Publication year - 1985
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/j.1095-8649.1985.tb03219.x
Subject(s) - pleuronectes , biology , fishery , fishing , population , standing crop , fish <actinopterygii> , zoology , ecology , demography , biomass (ecology) , sociology
Trawl surveys in an area of 237 km 2 to the east of Anglesey (Irish Sea) indicated a population of recruited plaice ( c . 480000 fish) between 2 and 15 years old. Seasonal growth began in early April and annual growth in the dominant cohorts was analysed for males and females separately. Net annual production was estimated to be 0.17 g m ‐2 from a standing crop of 0.3 g m ‐2 ; c . 50% of the production is removed by fishing. The annual consumption (2.5 g m ‐2 ) of Abra and Pectinaria was converted with 6.8% efficiency by weight (8.0% in energy units).