Riverine and early marine survival of stocked salmon smolts, Salmo salar L., descending the Testebo River, Sweden
2009 (English)In: Fisheries Management and Ecology, ISSN 0969-997X, E-ISSN 1365-2400, Vol. 16, no 5, 386-394 p.Article in journal (Refereed) Published
A combination of radio and acoustic telemetry was used to monitor the out-migration of hatchery-reared Atlantic salmon, Salmo salar L., in the River Testebo, its estuary and coastal system. As with many other Baltic rivers, the hydropower regulated River Testebo once had a self-sustaining salmon population that is now extinct. Substantial losses of smolts in the river (48-69%) and inner part of the estuary (43-47%) were found, but after leaving the estuary, the success of post-smolts moving out of the Bay was sufficiently high (83-89%) to conclude that habitat within the bay is not a factor limiting initial marine survival. The results suggest that hatchery-based recovery of a wild salmon population in the river will not be successful unless other actions, such as habitat improvement, are included.
Place, publisher, year, edition, pages
2009. Vol. 16, no 5, 386-394 p.
IdentifiersURN: urn:nbn:se:umu:diva-25972DOI: 10.1111/j.1365-2400.2009.00688.xOAI: oai:DiVA.org:umu-25972DiVA: diva2:235498