We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Morphological and genetic comparison between naturally produced smolts of Atlantic salmon, brown trout and their hybrids.
- Authors
Solem, Ø.; Berg, O. K.; Verspoor, E.; Hindar, K.; Karlsson, S. O.; Koksvik, J.; Rønning, L.; Kjærstad, G.; Arnekleiv, J. V.
- Abstract
Morphological characters were compared between smolts (standard length 110-220 mm) of Atlantic salmon Salmo salar L., anadromous brown trout Salmo trutta L. and their hybrids captured in River Driva, western Norway. Morphological discrimination between S. salar, S. trutta and their hybrids was correct for 93% of the individuals (correct form was determined genetically). Morphological discrimination of hybrids was incorrect with 9.1% ( n = 7) classified as S. salar and 1.3% ( n = 1) as S. trutta, suggesting that the hybrids were morphologically more similar to S. salar than S. trutta despite a bias towards S. trutta mothers (7 of 8 cases). The largest morphological differences were found in head (notably maxilla length) and caudal peduncle morphology. Hybrids between S. salar and S. trutta had the longest pectoral and pelvic fins. This indicates that precise discrimination based on morphological traits can be made between S. salar, S. trutta and their hybrids.
- Subjects
ATLANTIC salmon fisheries; BROWN trout fisheries; FISH morphology; FISH genetics; FISH anatomy; PECTORAL fins
- Publication
Fisheries Management & Ecology, 2014, Vol 21, Issue 5, p357
- ISSN
0969-997X
- Publication type
Article
- DOI
10.1111/fme.12085