Change search
ReferencesLink to record
Permanent link

Direct link
Do individual activity patterns of brown trout (Salmo trutta) alter the exposure to parasitic freshwater pearl mussel (Margaritifera margaritifera) larvae?
Göteborgs universitet. Swedish Anglers Assoc, Gothenburg, Sweden.
Göteborgs universitet.
Göteborgs universitet.
Göteborgs universitet.
Show others and affiliations
2016 (English)In: Ethology, ISSN 0179-1613, E-ISSN 1439-0310, Vol. 122, no 9, 769-778 p.Article in journal (Refereed) Published
Abstract [en]

The hypothesis that inter-individual differences in the activity of brown trout alter the exposure to parasitic freshwater pearl mussel glochidia was tested in a Swedish stream. Wild yearling brown trout (N=103) were caught, individually tagged for identification, and scored for open-field activity during standardized laboratory tests in June. Fifty gravid freshwater pearl mussels were relocated to the stream, where after the trout were released back into the stream. The fish were recaptured in October (N=35), checked for glochidia encystment (infested individuals: n=6), and re-scored for open-field activity traits. Swimming velocity during the test was higher in fish infected with glochidia, suggesting that high activity could increase their exposure to glochidia. Potentially, as metabolism and ventilation rate typically increase with activity, elevated activity may lead to an increased likelihood of glochidia passing over the gills. This novel finding suggests that glochidia infestation is non-random and that the behavior of the host fish can influence the likelihood of glochidia infestation.

Place, publisher, year, edition, pages
2016. Vol. 122, no 9, 769-778 p.
Keyword [en]
glochidia; parasites; animal personality; mussel conservation; reintroduction; behavioural repeatability
National Category
Ecology
Research subject
Biology
Identifiers
URN: urn:nbn:se:kau:diva-46149DOI: 10.1111/eth.12524ISI: 000380914100008OAI: oai:DiVA.org:kau-46149DiVA: diva2:971203
Available from: 2016-09-15 Created: 2016-09-15 Last updated: 2016-09-28

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Österling, Martin
By organisation
Department of Environmental and Life Sciences
In the same journal
Ethology
Ecology

Search outside of DiVA

GoogleGoogle Scholar

Altmetric score

Total: 1 hits
ReferencesLink to record
Permanent link

Direct link