Rivinoja, Peter
- Institutionen för vilt, fisk och miljö, Sveriges lantbruksuniversitet
Sammanfattning
P>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.
Nyckelord
Atlantic salmon; migration; smolt; stocking; tag
Publicerad i
Fisheries Management and Ecology
2009, volym: 16, nummer: 5, sidor: 386-394
SLU författare
UKÄ forskningsämne
Miljö- och naturvårdsvetenskap
Publikationens identifierare
- DOI: https://doi.org/10.1111/j.1365-2400.2009.00688.x
Permanent länk till denna sida (URI)
https://res.slu.se/id/publ/28597