Note
Maximum densities of east-central Florida populations of the tropical peripheral
Fishes, Oostethus brachyurus lineatus, Gobiomorus dormitor, Awaous tajasica and Gobionellus
pseudofasciatus occurred during the winter and spring months in the lower portions of
freshwater tributaries to the Indian River lagoon. All populations declined during the wet season,
reaching minimum levels during peak rainfall periods. Specific microhabitat requirements were
observed for each species. These species have a limited Florida range which is discussed relative
to various environmental parameters and dispersal mechanisms, such as water temperature
regimes, oceanic current patterns and particular microhabitat preferences.