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Assessing Ecological and Evolutionary Consequences of Growth-Accelerated Genetically Engineered Fishes
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Animal ecology.
2015 (English)In: BioScience, ISSN 0006-3568, E-ISSN 1525-3244, Vol. 65, no 7, 685-700 p.Article in journal (Refereed) Published
Abstract [en]

Genetically engineered fish containing growth hormone (GH) transgenes have been synthesized for more than 25 years, now with modifications made in multiple aquacultured species. Despite significant improvements in production characteristics being realized, these fish have not yet entered commercial production. The very strong enhancement of growth rates that can arise from GH transgenesis in fish has generated public and scientific concern regarding ecological and food safety. Little ecological risk is anticipated from engineered strains kept in fully contained facilities, so the concern is largely directed toward the reliability of containment measures and determining whether robust ecological data, pertinent to nature, can be generated within research facilities to minimize uncertainty and allow reliable risk-assessment predictions. This article summarizes the growth, life history, and behavioral changes observed in GH-transgenic fish and discusses the environmental and evolutionary factors affecting the adaptation, plasticity, and fitness of transgenic fish and their potential consequences on natural ecosystems.

Place, publisher, year, edition, pages
2015. Vol. 65, no 7, 685-700 p.
Keyword [en]
transgenic, growth hormone, risk assessment, fitness, plasticity
National Category
Biological Sciences
URN: urn:nbn:se:uu:diva-259660DOI: 10.1093/biosci/biv068ISI: 000357845600009OAI: oai:DiVA.org:uu-259660DiVA: diva2:847487
Swedish Research Council

Funding: Canadian Regulatory System for Biotechnology

Available from: 2015-08-20 Created: 2015-08-10 Last updated: 2015-08-20Bibliographically approved

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Sundström, L. Fredrik
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Animal ecology
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