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dc.contributor.authorMousavi, Seyed Karim
dc.contributor.authorAmundsen, Per-Arne
dc.date.accessioned2013-03-07T09:47:12Z
dc.date.available2013-03-07T09:47:12Z
dc.date.issued2012
dc.description.abstractZoobenthos samples were collected over a 12-month period in the profundal zone of the subarctic Fjellfrøsvatn, a lake in northern Norway. Chironomid larvae numerically dominated the profundal zoobenthos and their mean density decreased with increasing depth. Procladius (Holotanypus) sp. A, Mesocricotopus thienemanni, Psectrocladius (Mesopsectrocladius) sp. and Heterotrissocladius subpilosus exhibited the highest densities at the depth of 20 m, whereas H. subpilosus dominated the chironomid assemblage at 30–40 m. At 20-m depth, the chironomid density was highest in June, decreased towards autumn, and was relatively stable during the ice-covered period. The peak density in June was mainly related to a strong seasonal pattern in the density of Heterotrissocladius maeaeri and M. thienemanni. At 30–40-m depth, no significant seasonal variations in total density of chironomid larvae were observed, although the density of H. subpilosus exhibited a significant seasonal peak in winter. Larval instar groups of H. subpilosus were identified from a classification based on head capsule width. The profundal dwelling H. subpilosus were hemivoltine, having predominantly a two-year life cycle.en
dc.identifier.citationBoreal environment research 17(2012) s. 102-112en
dc.identifier.cristinIDFRIDAID 960319
dc.identifier.issn1239-6095
dc.identifier.urihttps://hdl.handle.net/10037/4893
dc.identifier.urnURN:NBN:no-uit_munin_4596
dc.language.isoengen
dc.publisherBoreal Environment Research Publishing Boarden
dc.rights.accessRightsopenAccess
dc.subjectVDP::Mathematics and natural science: 400::Zoology and botany: 480::Limnology: 498en
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Limnologi: 498en
dc.titleSeasonal variations in the profundal Chironomidae (Diptera) assemblage of a subarctic lake.en
dc.typeJournal articleen
dc.typeTidsskriftartikkelen
dc.typePeer revieweden


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