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Development of Standard Reference Lines of Rainbow Trout
Author(s) -
Kincaid H. L.
Publication year - 1979
Publication title -
transactions of the american fisheries society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.696
H-Index - 86
eISSN - 1548-8659
pISSN - 0002-8487
DOI - 10.1577/1548-8659(1979)108<457:dosrlo>2.0.co;2
Subject(s) - salmo , rainbow trout , fish <actinopterygii> , biology , mating , fishery , wildlife , trout , zoology , ecology
Two separate lines of rainbow trout (Salmo gairdneri) have been developed for use as standard reference lines in genetic research being conducted at the United States Fish and Wildlife Service Fish Genetics Laboratory, Beulah, Wyoming. Lines (one fall‐spawning and one winter‐spawning) were developed from the mixing of unselected strains during the 1968 and 1969 spawning seasons and have been maintained since by a modified random mating scheme. Production data on egg hatchability, fry survival, and growth performance for the 1972–1977 year classes show a high degree of uniformity within each year class and significant year‐class differences (P < 0.05) in all traits. The use of standard reference lines, such as these, allows the researcher to remove the effects of environmental variation from long‐term studies extending over multiple spawning seasons.