Early life history stages of fishes of Orange Lake, Florida: an illustrated identification manual

Conrow, Roxanne and Zale, Alexander V. (1985) Early life history stages of fishes of Orange Lake, Florida: an illustrated identification manual. Gainesville, FL, University of Florida, Florida Cooperative Fish and Wildlife Research Unit, (Technical Report - Florida Cooperative Fish and Wildlife Research Unit, 15)

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Abstract

From June 1983 t o June 1984, the senior author examined the habitat associations and seasonal succession of early life history stages of fishes of Orange Lake, Alachua County, Florida (Conrow 1984). The study included an evaluation of three sampling gears -- a 0.5-m diameter tow net, a Breder trap (a plastic trap with leaders; Breder 1960), and a light trap (Floyd et al. 1984). A total of 23 fish species was captured during the study. Illustrations and identifying characteristics of 18 of these are presented, along with brief mention of habitat associations and seasonal occurrences. Note that all illustrations and identifications were made from ish captured in the field and are therefore not definitive. Identifications were based on descriptions in the literature and, when possible, comparisons with known series. Species reported from Orange Lake (Reid 1950; DuRant 1980; Conrow 1984) but not considered in this report are listed on page 41. Orange Lake has a surface area of approximately 5000 hectares and a maximum depth o f 3.5 meters (Fig. 1). The four habitats defined f o r the study were open water, panic grasses (Panicum spp. ) , hydrilla (Hydrilla verticillata) , and, floating /emergent vegetation. The laatter is characterized primarily by spatterdock (Nuphar luteum), but also includes water hyacinth (Eichornia crassipes) , coontail (Ceratophyl lum demersum) , cabomba (Cabomba carol iniana) , and bladderwort ( Utriculariain flata ). (Document has 49 pages.)

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