Movements and Impingements of Juvenile Spot

Spot (Leiostomus xanthurus) comprised 35.9% of the 92,823 trawl-caught fish at 8 stations in the vicinity of a power plant on the Cape Fear River estuary, North Carolina. Monthly length frequency determinations of trawl-caught spot showed the major size mode progressed from about 4 to 10 cm from April 1975 to December 1975. The highest catches per unit of effort during the 2-year study were in the intake canal of the power plant. Of 982 spot tagged in the intake canal, 161 were returned and 9.4% of these were impinged on intake screens. The rate of impingement was highest for those released nearest to the intake structure and least for those released at greater distances.

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