Heritable morphological differentiation in salmonids from two distinct stream types

Dermond, Philip; Sperlich, Nicola; Brodersen, Jakob (2019). Heritable morphological differentiation in salmonids from two distinct stream types. Journal of fish biology, 95(5), pp. 1215-1222. Wiley 10.1111/jfb.14121

Text Dermond Sperlich & Brodersen 2019_Heritable morphological differentiation in salmonids from two distinct stream types.pdf - Published Version Restricted to registered users only Available under License Publisher holds Copyright. Download (1MB)

We tested for phenotype-to-habitat associations in brown trout Salmo trutta
populations from two ecologically different habitat types; i.e., groundwater and
surface-water-fed streams. Additionally, we raised captive offspring from two such
populations under standardised conditions to test whether potential phenotypic differentiation would be passed on to offspring. We found analogous differentiation by
habitat in multiple wild populations. Some of these morphological differences were
at least partially inherited by offspring. We suggest that this could have implications
for both scientists and fisheries authorities studying or managing trout populations.

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