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Characteristics of anadromous whitefish (Coregonus lavaretus (L.)) rivers in the Gulf of Bothnia
Umeå University, Faculty of Science and Technology, Department of Ecology and Environmental Sciences. (Arcum ; EcoChange)
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2013 (English)In: BIOLOGY AND MANAGEMENT OF COREGONID FISHES - 2011, 2013, p. 189-201Conference paper, Published paper (Refereed)
Abstract [en]

In order to study anadromous whitefish spawning river requirements, we sampled 41 rivers in the Gulf of Bothnia for newly hatched whitefish larvae for one to three consecutive years. Chemical and morphological data (e.g. flow rate, topography, pH, estuary fetch and distance to coastal sandy areas) were collected for each river. Newly-hatched whitefish were caught in 19 rivers whereas whitefish were not confirmed present in 22 rivers. By applying partial least squares discriminant analysis (PLS-DA), data for rivers confirmed to support whitefish were contrasted with data for rivers in which whitefish were not found. The single most important factor was annual average water flow rate. Whitefish larvae were observed in 93% of the rivers with annual mean flow rate > 5 m(3) s(-1) (N = 14). In contrast, newly-hatched whitefish were only found in 22% of the smaller rivers (N = 27).

Place, publisher, year, edition, pages
2013. p. 189-201
Series
Advances in Limnology, ISSN 1612-166X ; 64
Keywords [en]
Coregonids, spawning, water flow, Baltic Sea, larvae, rivers
National Category
Agricultural Science, Forestry and Fisheries Zoology
Identifiers
URN: urn:nbn:se:umu:diva-85574DOI: 10.1127/1612-166X/2013/0064-0007ISI: 000328231900014Scopus ID: 2-s2.0-84893149884ISBN: 978-3-510-47066-2 (print)OAI: oai:DiVA.org:umu-85574DiVA, id: diva2:694522
Conference
11th International Symposium on the Biology and Management of Coregonid Fishes, SEP 26-30, 2011, Mondsee, AUSTRIA
Available from: 2014-02-06 Created: 2014-02-06 Last updated: 2023-03-23Bibliographically approved

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Byström, Pär

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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf