H. D. Kelly

Observations On The Infestation Of A Fresh Water Fish Population By A Marine Copepod (Ergasilus Iizae Kroyer 1863)

Lake Shelby, an 829-acre natural lake, located in Baldwin County at Gulf Shores, Alabama was treated with emulsifiable rotenone in October, 1956 to eliminate an undesirable fish population. The lake was restocked with the bluegill sunfish, Lepomis macrochirus; the redear sunfish, Lepomis microlophus; and the largemouth bass, Micropterus salmoides. Subsequent population examinations following restocking revealed in 1958 that a copepod was infesting the gills of the fish. Collection of specimens and identification revealed the copepod to be Ergasilus lizae Krøyer previously reported only...

An Evaluation of Prestocking Checks Conducted by Fishery Biologists in Alabama Ponds

In its attempt to provide more and better fishing in the State, the Fisheries Section of the Alabama Department of Conservation initiated a program whereby fishery biologists would check all ponds before they were stocked with hatchery fish. Attempts were made to contact each pond owner, check the pond in his presence, and advise him of the proper methods of stocking and management which have resulted from fisheries research in Alabama. A total of 845 ponds were checked in 14 counties in east-central Alabama during the period of September 1955 through September 1959. Of the 845 ponds...

Preliminary Studies On Tilapia Mossambica Peters Relative To Experimental Pond Culture

Preliminary studies were conducted on the exotic cichlid, Tilapia mossambica Peters to determine the possibilities of incorporating this fish into the farm ponds and lakes in the Southeast. In an 18-week experiment in concrete ponds, T. mossambica proved to be a more efficient fish than the bluegill, Lepomis macrochirus Raf. In feeding experiments T. mossambica gave 2.97 times greater growth than did the bluegill, in fertilization 1.69 times, and in manuring experiments 1.97 times greater growth than the bluegill. Food habit studies conducted revealed that planktonic forms of...