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Prevalence of stock...
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Heimbrand, YvetteSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för akvatiska resurser,Department of Aquatic Resources
(författare)
Prevalence of stocked whitefish in River Kemijoki, Finland, inferred by micro X-ray fluorescence analysis of otoliths
- Artikel/kapitelEngelska2020
Förlag, utgivningsår, omfång ...
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2020-05-15
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Wiley,2020
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Wiley: 12 months,2024
Nummerbeteckningar
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LIBRIS-ID:oai:slubar.slu.se:105756
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https://res.slu.se/id/publ/105756URI
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https://doi.org/10.1111/fme.12430DOI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:ref swepub-contenttype
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Ämneskategori:art swepub-publicationtype
Anmärkningar
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Micro X-ray fluorescence (mu-XRF) analysis of otoliths was evaluated as a method to estimate the proportion of stocked one-summer-old whitefish Coregonus lavaretus L. in catches of adult fish (n = 20) ascending the River Kemijoki to spawn. Laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) analysis was applied as control. Polished otoliths were scanned with mu-XRF to obtain strontium maps that were used to infer visually the provenance of the whitefish. Thirteen of the fish showed signs of being stocked as one-summer-old fingerlings. LA-ICP-MS was applied to determine the elemental composition in a spot outside the core of the otolith. The results were largely consistent with the visual inspection of the mu-XRF mapped otoliths. In conclusion, mu-XRF mapping successfully identified whitefish stocked as one-summer-old fingerlings. The vast majority of whitefish returning to the River Kemijoki to spawn were stocked fish.
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Biuppslag (personer, institutioner, konferenser, titlar ...)
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Blass, MartinaSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för akvatiska resurser,Department of Aquatic Resources(Swepub:slu)48871
(författare)
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Sveriges lantbruksuniversitetInstitutionen för akvatiska resurser
(creator_code:org_t)
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Sveriges lantbruksuniversitet
Sammanhörande titlar
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Ingår i:Fisheries Management and Ecology: Wiley27, s. 490-4970969-997X1365-2400
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