projects > impacts of hydrological restoration on three estuarine communities > abstract
Fish Assemblages of Tidally Flooded Mangrove Forested Habitat Along a Salinity Gradient in Shark RiverBy Carole C. McIvor, Noah Silverman, Gary L. Hill, and Katie Kuss
U.S.Geological Survey, Center for Coastal and Watershed Studies, St Petersburg, FL., USA
The 18-month period January 2001 - June 30, 2002 is representative. We captured 25 fish species from 16 families on 8 sampling dates. Average catch per rivulet net was 13.8 fish; average density per lift net was 3.4 fish /6 m2. Five families dominated the mangrove forest assemblage. Gobies (frillfin, crested), mojarras (silver jenny, tidewater mojarra), rivulins (mangrove rivulus), anchovies (bay anchovy) and killifishes made up 92 percent of the catch. Introduced species (walking catfishes, pike killifish, cichlids) were rare, as were juveniles of estuarine transient species that spawn offshore, e.g., gray snapper, pinfish, and mullets.
The relative abundance and distribution of these two common species (frillfin goby, mangrove rivulus) can be used as part of a larger monitoring effort to judge the effects of hydrological modifications made upstream in the catchment as part of restoration activities. Contact: McIvor, Carole C., U.S. Geological Survey Center for Coastal and Watershed Studies, 600 Fourth St. S, St Petersburg, FL 33715, Phone: 727-803-8747, Fax: 727-803-2032, carole_mcivor@usgs.gov
(This abstract was taken from the Greater Everglades Ecosystem Restoration (GEER) Open File Report 03-54)
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U.S. Department of the Interior, U.S. Geological Survey
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Last updated: 12 September, 2003 @ 10:51 AM(KP)