Life-history variability and conservation status of landlocked Atlantic salmon: an overview

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Hutchings, Jeffrey A.Dalhousie University, Canada; Flødevigen Marine Research Station, Norway; University of Agder, Norway (författare)

Life-history variability and conservation status of landlocked Atlantic salmon : an overview

Nonanadromous Atlantic salmon (Salmo salar) exhibit a combination of variation in life history, habitat, and species co-existence matched by few vertebrates. Distributed in eastern North America and northern Europe, habitat ranges from hundreds of metres of river to Europe’s largest lakes. As juveniles, those with access to a lake usually migrate to feed and grow prior to reproduction. Prey such as smelt (Osmerus mordax, Osmerus eperlanus) and vendace (Coregonus albula) facilitate large body size (50–85 cm at maturity) and persistence in high-diversity (>20 fish species) environments; small-bodied salmon (10–30 cm at maturity), relying on insects as prey, coexist with few (fewer than five) other fishes. At maturity, weight varies more than 400-fold (17 to 7200 g) among populations, fecundity more than 150-fold (33 to 5600), and longevity almost fivefold (3 to 14 years). Landlocked salmon are managed to support sustainable fishing, achieve conservation and restoration targets, and mitigate threats; successes are evident but multiple challenges persist. Extraordinary variability in life history coupled with extensive breadth of habitat and species co-existence render landlocked Atlantic salmon singularly impressive from a biodiversity perspective.

Ardren, William R.Western New England Complex, USA (författare)
Barlaup, Björn TNorwegian Research Centre, Norway (författare)
Bergman, Eva,1959-Karlstads universitet,Institutionen för miljö- och livsvetenskaper (from 2013),NRRV - Naturresurs Rinnande Vatten(Swepub:kau)eva1868 (författare)
Clarke, Keith D.Fisheries and Oceans Canada, Canada (författare)
Greenberg, Larry,1955-Karlstads universitet,Institutionen för miljö- och livsvetenskaper (from 2013),NRRV - Naturresurs Rinnande Vatten(Swepub:kau)larrgree (författare)
Lake, ColinGlenora Fisheries Station, Canada (författare)
Piironen, JormaNatural Resources Institute Finland (Luke), Finland (författare)
Sirois, PascalUniversité du Québec à Chicoutimi, Canada (författare)
Sundt-Hansen, Line EUniversité du Québec à Chicoutimi, Canada (författare)
Fraser, Dylan J.Concordia University, Canada (författare)
Dalhousie University, Canada; Flødevigen Marine Research Station, Norway; University of Agder, NorwayWestern New England Complex, USA (creator_code:org_t)

Ingår i:Canadian Journal of Fisheries and Aquatic Sciences: Canadian Science Publishing76:10, s. 1697-17080706-652X1205-7533

Av författaren/redakt...: Hutchings, Jeffr ...; Ardren, William ...; Barlaup, Björn T; Bergman, Eva, 19 ...; Clarke, Keith D.; Greenberg, Larry ...; visa fler...; Lake, Colin; Piironen, Jorma; Sirois, Pascal; Sundt-Hansen, Li ...; Fraser, Dylan J.; visa färre...

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