Publication Date:
2007-10-06
Description:
Captive breeding is used to supplement populations of many species that are declining in the wild. The suitability of and long-term species survival from such programs remain largely untested, however. We measured lifetime reproductive success of the first two generations of steelhead trout that were reared in captivity and bred in the wild after they were released. By reconstructing a three-generation pedigree with microsatellite markers, we show that genetic effects of domestication reduce subsequent reproductive capabilities by approximately 40% per captive-reared generation when fish are moved to natural environments. These results suggest that even a few generations of domestication may have negative effects on natural reproduction in the wild and that the repeated use of captive-reared parents to supplement wild populations should be carefully reconsidered.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Araki, Hitoshi -- Cooper, Becky -- Blouin, Michael S -- New York, N.Y. -- Science. 2007 Oct 5;318(5847):100-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Zoology, 3029 Cordley Hall, Oregon State University Corvallis, OR 97331, USA. arakih@science.oregonstate.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17916734" target="_blank"〉PubMed〈/a〉
Keywords:
Animals
;
Animals, Domestic/genetics/physiology
;
Animals, Wild/genetics/physiology
;
*Breeding
;
Female
;
Fisheries
;
Male
;
Oncorhynchus mykiss/genetics/*physiology
;
Oregon
;
Population Dynamics
;
*Reproduction
;
Time Factors
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
