Journal of the Southeastern Association of Fish and Wildlife Agencies

The toxicity of fifteen chemicals used in vegetation control or disease treatment was studied. The fry of largemouth black bass, Micropterus salmoides, bluegill, Lepomis macrochirus, and channel catfish, Ictalurus punctatus were used as test animals. Chemicals included were three forms of silvex, three formulations of endothal, simazine, atrazine, diquat, two forms of benzenehexachloride, roccal, acriflavine, malachite green and methylene blue. Results of toxicity tests were used to arrive at a safe concentration of the various chemicals for the species of fry used as test animals. Several of the chemicals showed evidence of species specificity and one herbicide was sufficiently toxic to these species of fishes to warrant consideration as a fish toxicant.

A study involving macro-invertebrate populations, fish populations, and water quality determinations was conducted on Bicycle Path Creek and Parkerson Mill Creek, Lee County, Alabama, during a nine-month period in 1959. The streams, averaging 7.0 and 5.8 inches in depth and 10.0 and 12.8 feet in width, respectively, received domestic sewage from approximately half of the 16,000 inhabitants of Auburn, Alabama. Sewage was diverted from Bicycle Path Creek and pumped via a lift station to a sewage treatment plant located on Parkerson Mill Creek. The plant became operative about halfway through the study and the treated effluent was discharged into Parkerson Mill Creek.