Sökning: onr:"swepub:oai:DiVA.org:umu-11359" >
Combining turbine b...
-
Ferguson, J.W.
(författare)
Combining turbine blade-strike and life cycle models to assess mitigation strategies for fish passing dams
- Artikel/kapitelEngelska2008
Förlag, utgivningsår, omfång ...
Nummerbeteckningar
-
LIBRIS-ID:oai:DiVA.org:umu-11359
-
https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-11359URI
-
https://doi.org/10.1139/F08-078DOI
Kompletterande språkuppgifter
-
Språk:engelska
-
Sammanfattning på:engelska
Ingår i deldatabas
Klassifikation
-
Ämneskategori:ref swepub-contenttype
-
Ämneskategori:art swepub-publicationtype
Anmärkningar
-
The combined model produced a tool for evaluating effects on fish populations from passage through hydro-power turbines at dams. Mean blade-strike mortality was higher for adult Atlantic salmon (Salmo salar) and sea-run brown trout (Salmo trutta) (25.2%-45.3%) than for juveniles (5.3%-9.7%). Based on life cycle modeling, salmon populations in two Swedish rivers responded differently to strategies for mitigating mortality caused by fish striking turbine blades. Although population growth rates increased up to 3% and were relatively similar for both rivers. the relative increase in the number of female salmon escaping above a dam annually after 20 years when both juveniles and adults were protected was greater in the River Pitealven (68%) than in the River Vindelalven (46%) and was approximately four times greater in the River Pitealven (38% vs. 10%) when only adults were protected. These population responses were not predicted by estimates of mortality through turbines. They showed the model could be used to evaluate strategies to conserve fish populations affected by dams located in fish migratory corridors and how postspawn adults contributed to population productivity.
Ämnesord och genrebeteckningar
Biuppslag (personer, institutioner, konferenser, titlar ...)
-
Ploskey, G.R.
(författare)
-
Leonardsson, Kjell
(författare)
-
Zabel, R.W.
(författare)
-
Lundqvist, H.
(författare)
Sammanhörande titlar
-
Ingår i:Canadian Journal of Fisheries and Aquatic Sciences65:8, s. 1568-15850706-652X1205-7533
Internetlänk
Hitta via bibliotek
Till lärosätets databas