Results 11 to 20 of about 10,296 (263)
Infections by Gyrodactylus salaris of Atlantic salmon in the river Vikja were discovered in 1981. To prevent further spreading of the parasite to neighbouring rivers in the Sognefiord area, the river was treated with rotenone in November 1981 and in May
Bjørn Ove Johnsen +2 more
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Population dynamics of Müllerian mimicry under interspecific competition
Abstract We ask what the effects of mutualism on population dynamics of two competitive species are. We model the population dynamics of mutualistic interactions with positive density- and frequency-dependences. We specifically assume the dynamics of Mullerian mimicry in butterflies, where the mortality of both species is reduced depending on the ...
Fuga Kumazawa +6 more
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The host susceptibility and resistance of minnows, Phoxinus phoxinus, to Gyrodactylus salaris was examined under laboratory conditions. The following experiments were carried out: transmission rate was examined by exposure of uninfected minnows to ...
Tor A. Bakke, Laura A. Sharp
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Notes on Norwegian marine Amphipoda. 10. Scavengers and fish associates
The dominant group of carrion-eating amphipods in Norway are the Lysianassoidea; they play an important role as scavengers in Norwegian and arctic waters. A number of genera damage fish caught in nets and on long-lines; in Norway the most serious damage
Wim Vader, Kirsi Romppainen
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First record of gooseneck barnacles Conchoderma auritum on a minke whale Balaenoptera acutorostrata
Clusters of a stalked barnacle, identified as Conchoderma auritum were found attached to both damaged and complete baleen plates of a male minke whale caught off the coast of East Greenland on 16 July 1984.
Ivar Christensen
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Eighty-two hooded crows Corvus corone cornix L., 1758, were trapped in December 1980 using a great Norwegian Hooded Crows Trap in Grorud-dalen, Oslo, Norway.
Ørjan Olsvik, Bjørn B. Berdal
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Interspecific hybridization is the intrinsic forces behind genome evolution. Long non-coding RNAs (lncRNAs) are important for plant biological processes regulation. However, it is unclear that these non-coding fractions are impacted by interspecific hybridization.
Chengtao, Quan +10 more
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Resource and seasonality drive interspecific variability in a Dynamic Energy Budget model [PDF]
ABSTRACTAnimals show a vast array of phenotypic traits in time and space. These variation patterns have traditionally been described as ecogeographical rules; for example, the tendency of size and clutch size to increase with latitude (Bergman’s and Lack’s rules, respectively).
Joany Mariño +3 more
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Ecology of the Suldalslågen river in western Norway before its regulation
The River Suldalslågen, 22 km in length, situated in Rogaland province in western Norway, has been studied over a period of four years. The macro-invertebrate benthos was low in abundance especially in August and September.
Albert Lillehammer
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Notes on Norwegian marine Amphipoda. 8. Amphipods found in association with sponges and tunicates
Nineteen amphipod species in seven different families have been recorded living on or in Porifera and/or Tunicata in Norwegian waters. Of these Laothoes meinerti, Cheirimedon latimanus and two species of Paramphithoidae are confined to sponges, while ...
Wim Vader
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