Ric :

Nice link and a good looking fish.

Performance and Developmental Stability of Triploid Tiger Trout (Brown Trout X Brook Trout )
PAUL D. SCHEERER and GARY H. THORGAARD

Department of Zoology and Program in Genetics and Cell Biology, Washington State University, Pullman, Washington 99164, USA

JAMES E. SEEB

School of Fisheries, University of Washington, Seattle, Washington 98195, USA

Abstract.—Triploid fish hybrids frequently survive better than diploid hybrids. Tiger trout are a sterile hybrid between female brown trout Salmo trutta and male brook trout Salvelinus fontinalis; they have a poor early survival rate but a good growth rate. We produced triploid tiger trout by heat shock treatments of fertilized eggs and examined their survival and growth under hatchery conditions. Triploid tiger trout survived better to the initiation of feeding (34%) than did diploid tiger trout (5%) but had lower survival than brown trout (70%).