| Tekijä (t): | Siira, Antti Erkinaro, Jaakko Suuronen, Petri |
|---|---|
| Aineiston nimi: | Run timing and migration routes of returning Atlantic salmon in the Northern Baltic Sea: implications for fisheries management |
| Verkko-osoite: | https://onlinelibrary.wiley.com/doi/epdf/10.1111/j.1365-2400.2009.00654.x |
| Aineistolaji: | artikkeli |
| Asiasanat: | Itämeri, lohi - salmo salar, Perämeri, vaellus |
| Kustantaja: | |
| Painopaikka: | |
| Vuosi: | 2009 |
| Sivumäärä: | 14 |
| ISBN/ISSN: | |
| Lehti/sarja ym.: | Fisheries Management and Ecology Volume16, Issue3 |
| Lisätietoa: | Return migration of Atlantic salmon,Salmo salarL., was studied in the Gulf of Bothnia, northernBaltic Sea, by a mark-recapture experiment and catch records from commercial trap-nets. Coastal salmon fishingis regulated by delayed opening of the fishery in consecutive regions based on the assumption that the wild fishmigrate before reared ones and the migration is unidirectional and continuous from south to north. Neuralnetwork modelling suggested that the migration does not progress linearly from one regulation region to another,but shows variation between origin and sea age among and within regions. Further evidence of the non-linearmigration included a noticeable part of salmon on their way to two major estuaries first visiting the northern-mostBothnian Bay before turning back south. Salmon returning to the different homing sites in the north showed nodifferences in run timing in the southern Gulf whereas the same individual fish showed differences in catchaccumulation further north. Run timing estimates indicated only a slight tendency towards earlier migration forwild salmon compared with reared fish. |
| Sijainti: | Verkkojulkaisu |