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Wild genes boost the survival of captive-bred individuals in the wild
| Title: | Wild genes boost the survival of captive-bred individuals in the wild |
| Authors: | Sahashi, Genki Browse this author | | Morita, Kentaro Browse this author →KAKEN DB |
| Issue Date: | 11-Jan-2022 |
| Publisher: | John Wiley & Sons |
| Journal Title: | Frontiers in Ecology and the Environment |
| Volume: | 20 |
| Issue: | 4 |
| Start Page: | 217 |
| End Page: | 221 |
| Publisher DOI: | 10.1002/fee.2457 |
| Abstract: | Captive-breeding programs are actively engaged in conservation and resource enhancement for a variety of species around the world, yet captive-bred individuals often experience reduced fitness in the wild due to inbreeding and adaptation to captivity. Increasing wild-type genetic contributions has been proposed as one solution to this problem, but the demographic impacts of these contributions remain unclear. Using data from long-term mass-marking programs conducted by national hatcheries in Japan, we evaluated the effects of wild genes in the parental generation on the survival of captive-bred populations. Our results indicated that increasing the percentage of wild genes improves survival of captive-bred offspring in the wild in two salmonid species. These findings offer insights for future bioresource management efforts that use both wild and captive-bred individuals. |
| Type: | article |
| URI: | http://hdl.handle.net/2115/85433 |
| Appears in Collections: | 北方生物圏フィールド科学センター (Field Science Center for Northern Biosphere) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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