Publishing 12 times a year. ISSN 0006-3568.
These salmon display the remarkable potential for size disparity between genetically engineered growth hormone (GH) transgenic coho salmon and their nontransgenic siblings at 12 months of age. GH transgenesis in fishes can result in dramatic acceleration of growth rate that could enhance production, and GH transgenic salmon are currently under review for use in aquaculture. However, there is concern regarding potential impacts that such fish may have should they inadvertently enter natural ecosystems. In an article in this issue, Robert H. Devlin and his colleagues discuss phenotypic alterations in GH transgenic fish and the environmental and evolutionary factors influencing their potential consequences to natural ecosystems.
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