Heritable morphological differentiation in salmonids from two distinct stream types
Publisher DOI
Abstract
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.
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.
Date Issued
2019
Publication Type
Article
Subject(s)
Language(s)
en
Additional Credits
Journal
Journal of fish biology
Publisher
Wiley
ISSN
0022-1112
Access(Rights)
restricted