Abundance and Size of Fishes Taken by Trawling in Vermilion Bay, Louisiana
Abstract:Fishes were collected with a 4.9-m flat otter trawl at three sampling stations (Vermilion River Cutoff, Redfish Point, and Southwest Point) in Vermilion Bay, Louisiana, from June 1964 through September 1965.
In 273 10-minute tows, 10,710 fish representing 43 species and 24 families were collected. The greatest number of species and the greatest number of individuals were taken at Southwest Point, the sampling station nearest the Gulf of Mexico. Vermilion River Cutoff, the northernmost location, most distant from the Gulf, exhibited the fewest species and individuals. Fishes in the family Sciaenidae occurred most frequently and in greatest number in the trawl catches. The Atlantic croaker (Micropogon undulatus) was the most abundant species taken.
For each sampling station, the species collected, their frequencies of occurrence, and their numerical abundance were reported. Relative abundance and frequency distribution of size of the most frequently occurring fishes were determined.
Document Type: Research Article
Publication date: March 1, 1974
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