Correlates of prolonged swimming performance in F2 hybrids of migratory and non-migratory threespine stickleback.

Abstract excerpt

Determining which underlying traits contribute to differences in whole-animal performance can be difficult when many traits differ between individuals with high and low capacities. We have previously found that migratory (anadromous marine) and non-migratory (stream-resident) threespine stickleback (Gasterosteus aculeatus) populations have genetically based differences in prolonged swimming performance (U(crit))...

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