Factors Influencing the Collection Efficiency of Estuarine Fishes
- 1 March 1992
- journal article
- Published by Oxford University Press (OUP) in Transactions of the American Fisheries Society
- Vol. 121 (2) , 234-244
- https://doi.org/10.1577/1548-8659(1992)121<0234:fitceo>2.3.co;2
Abstract
We evaluated the efficiency with which estuarine fishes were collected in a haul seine on 11 dates from 1984 to 1988. Comparisons between the catch in the first haul and the total population in a tidal creek pool demonstrated that species richness, species rank, and size distributions of dominant taxa were represented well in the first haul. However, abundance was not reliably estimated by a single collection. Collection efficiency for the six most common taxa ranged from 7 to 91%. A two-way analysis of variance, used to examine the efficiency of the first haul, indicated significant main effects for species and season. In general, efficiencies were significantly higher in summer and winter than in spring and autumn. Multiple-regression analyses, used to predict the efficiency of the first haul as a function of water temperature, salinity, total numbers, and modal length, only yielded significant relationships for some species. Collection efficiencies of striped mullet Mugil cephalus were related...Keywords
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