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Freshwater biology focuses on environments like lakes. A pond in the Oconee River Floodplain in Georgia, whose surface is covered in duckweed but still contains fish. Freshwater biology is the scientific biological study of freshwater ecosystems and is a branch of limnology .
The shoal bass (Micropterus cataractae) is a species of freshwater fish in the sunfish family (Centrarchidae) of order Centrarchiformes.One of the black basses, it is native to waters in Florida and Georgia. [2]
Cambarus cryptodytes, the Dougherty Plain cave crayfish or Apalachicola cave crayfish, is a small, freshwater crayfish endemic to Florida and Georgia in the United States. It is an underground species known only from waters associated with the Floridan aquifer.
It is found in freshwater streams and large rivers with coarse or silty sand and gravel substrates in moderate to slow currents. [9] [8] Like most freshwater mussels, it is a mainly sedentary filter-feeder. Oxygen and food are obtained by siphoning which provides phytoplankton, tiny zooplankton, and organic detritus. Its lifespan is unknown. [7]
The Halloween darter (Percina crypta) is a small freshwater fish native to North America. It is found in Georgia and Alabama in the drainage basin of the Apalachicola River, specifically in the Flint River system and the Chattahoochee River system. It prefers shallow, fast-flowing areas with gravel bottoms in small and medium-sized rivers.
The redeye bass, redeye, or Coosa bass (Micropterus coosae) is a species of freshwater fish in the sunfish family (Centrarchidae) native to the Coosa River system of Georgia, Alabama. The waters it is normally found in are cool streams and rivers in the foothills of mountains.
Elliptio nigella, the winged spike or recovery pearly mussel, is a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the freshwater mussels. This species is endemic to the United States. It was thought to be extinct, but was rediscovered in 2010. It is not known if the rediscovered population is viable.
Medionidus penicillatus, the gulf moccasinshell, is a rare species of freshwater mussel in the family Unionidae, the river mussels.This aquatic bivalve mollusk is native to Alabama, Florida, and Georgia in the United States, where it is in decline and has been extirpated from most of the rivers it once inhabited. [5]