Rach, J. J., and Bills, T. D., 1987, Comparison of three baits for trapping crayfish:
North American Journal of Fisheries Management, v. 7, no. 4, p. 601-603.

Abstract: 

In late summers of 1985 and 1986, the efficacies of two commercially
manufactured crayfish baits (one each  in block and pelleted form) and dead fish
as attractants for trapping the mud crayfish Orconectes immunis   were assessed in
a small Wisconsin lake (area, 5.7 hectares; maximum depth, 6 m). Five sites on
the lake were  sampled continuously for a 30-d period each year, and each site was
fished with three traps. Total harvest of  crayfish was 3,949 in 1985 and 2,226 in
1986. Traps with pelleted bait (Crawfish Bait Jumbo) caught more than  the others
by a 3-to-1 margin in 1985 and by a 2-to-1 margin in 1986. The commercially
prepared baits were  easier to handle, lacked a putrid odor, required less labor and
no refrigeration, and were more readily available  than fish carcasses.

Keywords:

trap-fishing, freshwater-fisheries, pest-control, Orconectes-immunis,
comparative-studies, USA,  Wisconsin, bait