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Individual‐level analysis of early life history traits in hatchery‐reared lake trout
Author(s) -
Pakkasmaa S.,
Jones M.
Publication year - 2002
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/j.1095-8649.2002.tb02399.x
Subject(s) - salvelinus , biology , hatchling , trout , hatchery , hatching , zoology , salmonidae , fishery , maternal effect , heritability , ecology , rainbow trout , fish <actinopterygii> , offspring , evolutionary biology , pregnancy , genetics
In a factorial crossing experiment with individually reared lake trout Salvelinus namaycush eggs. genetic effects explained only a little of the total phenotypic variance in hatching time and alevin size, whereas environmental and maternal effects explained a much larger proportion of variation. Larger eggs produced larger hatchlings, but survival was independent of egg size.