Benthos, Freshwater ecology -- Florida, Water quality bioassay
Benthic macroinvertebrates and physicochemical parameters were sampled monthly in Spring Lake, Florida from July, 1978, to June, 1979. Spring Lake is a slightly acidic, sand bottom lake located in the sandhill region of the Central Highlands. While submersed vegetation is not dense, the lake does contain an abundance of the endemic submersed plant Mayaca aubletii. The littoral zone is dominated by plants belonging to the genera Panicum, Nuphar, Hydrocotyle, Nymphaea, Satittaria, and Typha. The benthic macroinvertebrates collected consisted of 51 species; approximately 50 percent were in the family Chironomidae. The annual mean number of individuals was 947/m2. The mayfly Hexagenia munda Orlando was the most numerous species (18.4 percent of the annual mean); the Chironomidae was the most numerous family (31.6 percent of the annual mean). The annual mean value for the Simpson's Index was 0.25 while the annual mean value for the Shannon Index was 2.60.
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Osborne, John A.
Master of Science (M.S.)
College of Natural Sciences
Length of Campus-only Access
Masters Thesis (Open Access)
Spence, Jeffrey F., "The Diversity and Abundance of the Benthic Macroinvertebrates in an Oligo-Mesotrophic Central Florida Lake" (1981). Retrospective Theses and Dissertations. 594.