A Comparison Of Marsh Fish Communities Using The Wegener Ring

Three marsh types (saline, brackish, and freshwater) in the Baratoria Basin were sampled with the Wegener Ring. Forty-four species were collected, representing 21 families. Overall species composition and within species abundance varied from saline to freshwater environments. Shannon-Weaver diversity and evenness diversity show a decreasing gradient from saline to freshwater marsh. Number of individuals collected had an opposite gradient. The order of sequence from highest to lowest for biomass was fresh, saline, and then brackish. The saline marsh had the highest species richness value, while freshwater marsh had a slightly higher value than the brackish marsh.