Factors Influencing Genetic Control in Lakeward Migrations of Cutthroat Trout Fry

摘要: Abstract Progeny from inlet-spawning cutthroat trout (Salmo clarki) in Yellowstone Lake move downstream and progeny outlet-spawning adults upstream to enter the lake rear. I examined role of genetic control, rheotactic acclimation (acclimating swim-up fry water current no current), constant fluctuating temperatures, changing source directing migrations by testing them simulated stream channels. Genetic control influenced movement Inlet Outlet fry, but significantly altered direction migration inlet fry. Fry moved under controls temperatures tests source, that were tested a other than used for incubation higher numbers those same acclimation. Tests parental influence wer...