Has habitat heterogeneity promoted phenotypic and ecological sub-structuring 
among a Coregonus lavaretus population in a large Scottish lake?

Etheridge, E. C.; Harrod, C.; Bean, C. W.; Adams, C. E.

doi:10.1111/j.1095-8649.2010.02827.x

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Has habitat heterogeneity promoted phenotypic and ecological sub-structuring among a Coregonus lavaretus population in a large Scottish lake?

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Harrod, C.
Department Ecophysiology, Max Planck Institute for Limnology, Max Planck Institute for Evolutionary Biology, Max Planck Society;
Department Evolutionary Genetics, Max Planck Institute for Evolutionary Biology, Max Planck Society;

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Citation

Etheridge, E. C., Harrod, C., Bean, C. W., & Adams, C. E. (2010). Has habitat heterogeneity promoted phenotypic and ecological sub-structuring among a Coregonus lavaretus population in a large Scottish lake? Journal of Fish Biology, 77(10), 2391-2404. doi:10.1111/j.1095-8649.2010.02827.x.

Cite as: https://hdl.handle.net/11858/00-001M-0000-000F-D438-2

Abstract

Differences in stable-isotope values, morphology and ecology in whitefish Coregonus lavaretus were investigated between the three basins of Loch Lomond. The results are discussed with reference to a genetic investigation to elucidate any substructuring or spawning site fidelity. Foraging fidelity between basins of Loch Lomond was indicated by δ13C and δ15N values of C. lavaretus muscle tissue. There was, however, no evidence of the existence of sympatric morphs in the C. lavaretus population. A previous report of two C. lavaretus‘species’ in Loch Lomond probably reflects natural variation between individuals within a single mixed population.