Thingvallavatn

Differences in tooth traits between Arctic charr morphs

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In January this year, Guðbjörg Ósk Jónsdóttir along with co-authors Finnur Ingimarsson, Sigurður Sveinn Snorrason, Sarah Elizabeth Steele and Arnar Pálsson. Published a paper in the journal Evolutionary Biology. The paper is titled “Variation of Tooth Traits in Ecologically Specialized and Sympatric Morphs.”   Why fish teeth? When one thinks about variation in teeth, one does […]

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Lögunar og erfðafræðilegur breytileiki milli bleikjuafbrigða í tengdum stöðuvötnum

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Fyrr á þessu ári var grein birt í tímaritinu Molecular Ecology (eða Sameindavistfræði). Þessi grein var skrifuð af Han Xiao og meðhöfundundum hans, þeim Arnari Pálssyni, Zophoníasi O. Jónssyni og Sigurði S. Snorrasyni. Fjallar hún um lögunar og erfðafræðilegan mun á milli bleikjuafbrigða sem lifa í tveimur nágranna stöðuvötnum hérlendis. Rannsakendurnir söfnuðu ólíkum bleikjuafbrigðum frá

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Genetic and Shape Differences of Arctic Charr Morphs in Connected Lakes

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Earlier this year Han Xiao along with co-authors Arnar Pálsson, Zophonías O. Jónsson and Sigurður S. Snorrason published a paper in the journal Molecular Ecology. In this paper they explored genetic and shape differences between Arctic charr morphs in two neighbouring lakes in Iceland. They collected different Arctic charr morphs from lake Þingvallavatn and lake

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Where are the baby Brown trout and Arctic charr?

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  Nursery grounds are habitats mainly used by juvenile (baby) fish. As the name suggests these habitats are like nurseries for fish. Nursery grounds are very important for the fish species using them. Since they provide protection and food for the young. Therefore, knowing where they are and how they are holding up is important.

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The brown trout of Thingvallavatn and Ölfusá

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Marcos Lagunas and his collaborators from the University of Iceland and the Marine and Freshwater Institute teamed up for a project on the genetics of brown trout. Last year, they published an article where they looked into the genetic structure of different trout populations in Thingvallavatn and Ölfusá.   The decline of trout in Thingvallavatn

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