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PARASITES FAUNA OF THE LAKE KRONOTSKOE CHARRS (SALVELINUS), KAMCHATKA
(Journal article; Tidsskriftartikkel; Peer reviewed, 2016)
The new data on the parasites fauna of the Lake Kronotskoe sympatric charr forms (genus
Salvelinus (Nilsson) Richardson, 1836) is presented. Parasites fauna of Bigmouth and
Smallmouth charr forms are described for the first time. The information about Longhead
charr, Nosed charr and White charr parasites is added. 29 species of parasites from 9 classes
were found: Oligohymenophorea, Myxosporåà, ...
Temporal changes and between-host variation in the intestinal parasite community of Arctic charr in a subarctic lake
(Journal article; Tidsskriftartikkel; Peer reviewed, 2016-03-16)
The occurrence of trophically transmitted intestinal parasites in Arctic charr was analyzed from data material collected over two decades from Lake Takvatn, northern Norway. The main objectives were to investigate (i) between-year variation in parasite infracommunity composition, (ii) between-host variation in infracommunity composition, and (iii) possible interspecific interaction between parasites. ...
Effects of fish species composition on Diphyllobothrium spp. infections in subarctic brown trout - is three-spined stickleback a key species?
(Journal article; Tidsskriftartikkel; Peer reviewed, 2016-04-25)
Subarctic populations of brown trout (Salmo trutta) are often heavily infected with cestodes of the genus Diphyllobothrium, assumedly because of their piscivorous behavior. This study explores possible associations between availability of fish prey and Diphyllobothrium spp. infections in lacustrine trout populations. Trout in i) allopatry (group T); ii) sympatry with Arctic charr (Salvelinus alpinus) ...
Variation in functional trait composition of benthic invertebrates across depths and seasons in a subarctic lake
(Journal article; Tidsskriftartikkel, 2016-07-01)
Benthic invertebrate communities play a fundamental role in lake ecosystems, and the understanding of how those benthic communities are structured, particularly in terms of the identity and spatiotemporal distribution of their functional traits, is key to our understanding of how lake ecosystems work. In Takvatn, a subarctic lake in northern Norway, we identified the taxonomic and functional identity ...
A simplified method to estimate Diphyllobothrium spp. infection in salmonids
(Journal article; Tidsskriftartikkel; Peer reviewed, 2016-10-13)
Some fish parasites constitute severe management
problems as they may cause mortality of their fish
host or are important zoonoses of humans. Parasite
assessments are therefore critical to keep track
of infections. If conventional sampling techniques
can be simplified, parasite assessments might be
easier to obtain, less time-consuming and more
extensive. In this study, we compare the ...
Divergent functional traits in three sympatric Arctic charr Salvelinus alpinus morphs are not coupled with the age of the lineage divergence
(Journal article; Tidsskriftartikkel; Peer reviewed, 2016-10-24)
Three genetically discrete morphs of Arctic charr in Loch Rannoch, Scotland originated from a
recent divergence within the lake (in situ) (piscivore
and benthivore morphs) and from secondary contact of
two older lineages (ex situ; a planktivore–piscivore/
benthivore divergence). To test if the expression of
traits with strong functional roles was linked to the age
of the divergence, fin and ...