ALABAMA (Cont. ) 



4. The Invertebrate Animals Serving as Food for Fish in Alabama Ponds 



The objectives are to determine the species, seasonal cycles of abundance, 

 utilization, and ecology of the invertebrate aninnals that serve as food for 

 fish in ponds in Alabama. Aquatic animals from a wide variety of habitats in 

 ponds will be collected for species identification. Samples of food organisms 

 will be collected throughout the seasons to determine seasonal cycles of abun- 

 dance. Contents of stomachs of fish will be analyzed to determine utilization 

 of different organisms. Relations of food organisms to their environment will 

 involve studies of habitats by measuring depth, temperature, and dissolved 

 oxygen content of the water, and by determining the nature of the substrata 

 and the degree of interspecific cohabitation. 



Auburn; began July 1956, to close June 1961; $2,600; J. S. Dendy, Leader. 



Address inquiries to: J. S. Dendy, Fisheries Lab. , A. P. I. , Auburn, 

 Alabama. 



5. Minnow Production 



The objectives are: (A) To deternnine the species of fish that can be pro- 

 duced most profitably for bait. (B) To determine the most efficient supple- 

 mental feeds and rates of feeding for bait fish. (C) To determine the most de- 

 sirable methods for harvesting, handling, temporary storage, and transpor- 

 tation for bait fish. 



Auburn; began 1946, to close 1960; $15,000; E. E. Prather, Leader; re- 

 ports available. 



Address inquiries to: E. E. Prather, A. P. I. Agricviltural Experiment 

 Station, Auburn, Alabama. 



6. Chemical Control of Weeds in Ponds 



The objectives are: (1) To test the effectiveness of commercial and ex- 

 perimental herbicides and algacides on common pond weeds of this area. 

 (2) To determine the toxicity of commercial and experimental herbicides and 

 algacides to fish and fish food organisms, and their effects in ponds on fish 

 production, plankton production, and bottom organisms production. 



Auburn; began July 1956, to close June 1961; $10,000; J. M. Lawrence, 

 Leader. 



Address inquiries to: J. M. Lawrence, Fisheries Building, A. P. I. , 

 Auburn, Alabama. 



U. S. Fish and Wildlife Service, Branch of Ganne-fish and Hatcheries 



1. Warm-water Pond Fish Culture 



Existing methods of producing warm-water species of pond fishes under 

 hatchery conditions are critically examined with the objective of improving 

 present procedures and techniques in hatchery management. Production 

 methods for warm-water species of fish which show promise of improving the 

 quality and quantity of the hatchery output are tested. Studies are being con- 

 ducted on methods of fertilization, vegetation control, and other pond manage- 

 ment techniques under hatchery conditions. 



Marion; began January 1950, continuing; Jack R. Snow, Leader. 



Address inquiries to: Jack R. Snow, U. S. Fish Cultural Station, Marion, 

 Alabama . 



