Diana L. Weigmann

Use of Seafood Processing Wastes (Blue Crab and Herring Scrap) as Protein Substitutes in Rainbow Trout Diets

Laboratory and field growth trials were conducted to determine the feasibility of using blue crab (Callinectes sapidus) or Atlantic herring (Clupea harenous) cannery waste as dietary protein substitutes in pelleted rainbow trout (Salmo gairdneri) feeds. In lab and field experiments, triplicate groups of trout were fed 3 nutritionally complete diets: (1) a commercial diet (38.8% protein); or 1 of 2 experimental diets containing either (2) blue crab scrap (35.9% protein) or (3) herring byproducts (33.9% protein). Complete replacement of conventional fish meal as a protein source in rainbow...


Commercial Aquaculture In Virginia In 1978

In 1978, all commercial aquaculture enterprises operating in the state were surveyed by telephone and in person to determine the status of the industry and to assess the biological and economic feasibility of rearing aquatic organisms for profit in Virginia. A total of II commercial aquaculture firms were in business during 1978. Six establishments were producing rainbow trout (Salmo gairdneri) for food and stocking recreational waters, 2 were rearing warmwater sport fish fingerlings and bait fish, and 3 were culturing clams. In contrast to most southern states, no commercial producers in...