Species composition, distribution, and relative abundance of fishes in the coastal habitat off the southeastern United States

Wenner, Charles A. and Sedberry, George R. (1989) Species composition, distribution, and relative abundance of fishes in the coastal habitat off the southeastern United States. NOAA/National Marine Fisheries Service, (NOAA Technical Report NMFS, 79)

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Abstract

Ichthyofauna of the coastal «10 m depth) habitat of the South Atlantic Bight were investigated between Cape Fear, North Carolina, and the St. John's River, Florida. Trawl collections from four nonconsecutive seasons in the period July 1980 to December 1982 indicated that the fish community is dominated by the family Sciaenidae, particularly juvenile forms. Spot (Leiostomus xanthurus) and Atlantic croaker (Micropogonias undulatus) were the two most abundant species and dominated catches during all seasons. Atlantic menhaden (Brevoortin tyrannus) was also very abundant, but only seasonally (winter and spring) dominant in the catches. Elasmobranch fIShes, especially rajiforms and carcharinids, contributed to much of the biomass of fishes collected. Total fish abundance was greatest in winter and lowest in summer and was influenced by the seasonality of Atlantic menhaden and Atlantic croaker in the catches. Biomass was highest in spring and lowest in summer, and was influenced by biomass of spot. Fish density ranged from 321 individuals and 12.2 kg per hectare to 746 individuals and 25.2 kg per hectare. Most species ranged widely throughout the bight, and showed some evidence of seasonal migration. Species assemblages were dominated by ubiquitous year-round residents of the coastal waters of the bight. Diversity (H') was highest in summer, and appeared influenced by the evenness of distribution of individuals among species. (PDF file contains 56 pages.)

Item Type: Monograph or Serial Issue
Title: Species composition, distribution, and relative abundance of fishes in the coastal habitat off the southeastern United States
Personal Creator/Author:
CreatorsEmail
Wenner, Charles A.
Sedberry, George R.
Series Name: NOAA Technical Report NMFS
Number: 79
Date: 1989
Publisher: NOAA/National Marine Fisheries Service
Issuing Agency: United States National Marine Fisheries Service
Subjects: Ecology
Management
Fisheries
Biology
Item ID: 2742
Depositing User: Patti M. Marraro
Date Deposited: 04 Nov 2009 15:41
Last Modified: 29 Sep 2011 18:23
URI: http://aquaticcommons.org/id/eprint/2742

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