Browsing Norsk institutt for naturforskning by Journals "Fauna Norvegica"
Now showing items 1-10 of 10
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Arctic charr (Salvelinus alpinus) re-established in a formerly acidified and highly dilute mountain lake under declining acidic deposition
(Journal article; Peer reviewed, 2018)Arctic charr in Rondvatn, a formerly highly acidified mountain lake in southern Norway, was re-established through stocking. The population became extinct during the early 1980s when the lake had an annual mean pH of ... -
Distribution and patterns of spread of recolonising Eurasian beavers (Castor fiber Linnaeus 1758) in fragmented habitat, Agdenes peninsula, Norway
(Peer reviewed; Journal article, 2013)The Agdenes peninsula, Sør-Trøndelag, Norway, 1060km2, is a heavily dissected mountainous landscape with numerous small watersheds, of mainly steep gradient, flowing separately into the sea or to fjords. Suitable habitat ... -
Distribution of the gill parasite Discocotyle sagittata (Monogenea: Polyopisthocotylea) in parr of Atlantic salmon Salmo salar and sea trout S. trutta in Norwegian rivers
(Peer reviewed; Journal article, 2023)The monogenean gill parasite Discocotyle sagittata is reported from parr of Atlantic salmon Salmo salar and sea trout S. trutta in the anadromous part of 86 out of 223 Norwegian rivers. The prevalence in each river varied ... -
The freshwater shrimp Gammarus lacustris (Malacostraca, Amphipoda) in lakes on the Hardangervidda mountain plateau, southern Norway: distribution and environmental requirements
(Journal article, 2020)Qvenild T, Hesthagen T and Fjellheim A. 2020. The freshwater shrimp Gammarus lacustris (Malacostraca, Amphipoda) in lakes on the Hardangervidda mountain plateau, southern Norway: distribution and environmental requirements. ... -
Heterocope borealis in Norway - A copepod on the move, or on the edge of its natural distribution?
(Journal article; Peer reviewed, 2017)The calanoid copepod Heterocope borealis has been assumed to have an extremely northern distribution in Norway, limited to the north-eastern parts of Finnmark county. The recent records of the species in Lake Fustvatn and ... -
A long-term study of the impact of the invasive species Eurasian minnow Phoxinus phoxinus on brown trout Salmo trutta production in a high mountain lake, Southern Norway
(Peer reviewed; Journal article, 2024)The shallow Lake Skjerja was originally one of the most outstanding brown trout lakes on the Hardangervidda mountain plateau. During the period 1973–1985, the annual yield was on average 3.35 kg ha-1. In the mid-1980s, ... -
New and previously known species of Copepoda and Cladocera (Crustacea) from Svalbard, Norway – who are they and where do they come from?
(Journal article; Peer reviewed, 2018)Arctic landscapes are characterised by an immense number of fresh and brackish water habitats – lakes, ponds and puddles. Due to a rather harsh environment, there is a limited number of species inhabiting these ecosystems. ... -
The taxonomy, life cycle and pathology of sarcoptes scabiei and notoedres cati (Acarina, sarcoptidae): A review in a fennoscandian wildlife perspective
(Journal article; Peer reviewed, 2015)Kraabøl M, Gundersen V, Fangel K, Olstad K. 2015. The taxonomy, life cycle and pathology of Sarcoptes scabiei and Notoedres cati (Acarina, Sarcoptidae): A review in a Fennoscandian wildlife perspective. Fauna norvegica ... -
Upper thermal threshold of Lepidurus arcticus (Branchiopoda, Notostraca) in lakes on the southern outreach of its distribution range
(Peer reviewed; Journal article, 2021)Qvenild T, Fjeld E, Fjellheim A, Hammar J, Hesthagen T and Lakka H-K. 2021. Upper thermal threshold of Lepidurus arcticus (Branchiopoda, Notostraca) in lakes on the southern outreach of its distribution range. Fauna norvegica ... -
The viability of the crustacean Eurycercus lamellatus (Branchiopoda, Cladocera) in a high mountain area in southern Norway
(Journal article, 2020)The branchiopod Eurycercus lamellatus is widely distributed in Norwegian lakes, ranging from coastal to alpine areas. On the Hardangervidda mountain plateau in southern Norway, E. lamellatus was searched for in 144 lakes ...