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Behaviour of growth hormone transgenic coho salmon O ncorhynchus kisutch in marine mesocosms assessed by acoustic tag telemetry
Author(s) -
Hollo T.,
Watson B. M.,
Johnston S.V.,
Devlin R. H.
Publication year - 2017
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/jfb.13233
Subject(s) - oncorhynchus , biology , chinook wind , juvenile , mesocosm , fishery , transgene , zoology , ecology , fish <actinopterygii> , gene , biochemistry , ecosystem
Underwater acoustic tag telemetry was used to assess behavioural differences between juvenile wild‐type ( i.e. non‐transgenic, NT ) and growth hormone ( GH ) transgenic (T) coho salmon Oncorhynchus kisutch in a contained simulated ocean environment. T O. kisutch were found across days to maintain higher baseline swimming speeds than NT O. kisutch and differences in response to feeding were detected between T and NT genotypes. This is the first study to assess behaviour of GH transgenic salmonids in a marine environment and has relevance for assessing whether behavioural effects of GH overexpression seen in freshwater environments can be extrapolated to oceanic phases of the life cycle.