Browsing Artikler, rapporter og annet (arktisk og marin biologi) by Issue Date
Now showing items 1-20 of 1348
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Staðir-gårder : en pollenanalytisk undersøkelse av syv gårder med endelsen –stad (-staðir) i Vesterålen, Lofoten og Nord-Trøndelag
(Research report; Forskningsrapport, 1996)Ti pollendiagram fra syv lokaliteter presenteres. Lokalitetene er gårder eller tidligere gårder med endelsen –stad eller -staðir (gammel flertallsform). Gårdene er i kommunene Bø, Hadsel og Vestvågøy i Nordland fylke, og Namdalseid kommune i Nord-Trøndelag fylke. <br>Undersøkelsene er en del av prosjektet ” ..-stadirgårder og pollenanalyse” (gårder med endelsen -stadir og pollenanalyse). Formål ... -
Salivary glands in Svalbard reindeer (Rangifer tarandus platyrhynchus) and in Norwegian reindeer (Rangifer tarandus tarandus).
(Journal article; Peer reviewed; Tidsskriftartikkel, 1999) -
Treatment of reindeer with ivermectin. Effect on dung insect fauna.
(Journal article; Tidsskriftartikkel; Peer reviewed, 1999) -
Loss of deuterium in faecal solids and by sequestration in reindeer. Effect on doubly labelled water studies.
(Journal article; Peer reviewed; Tidsskriftartikkel, 2000) -
Energy expenditure of free-living reindeer estimated by the doubly labelled water method.
(Journal article; Peer reviewed; Tidsskriftartikkel, 2000) -
Biological rhythms in Arctic vertebrates.
(Journal article; Peer reviewed; Tidsskriftartikkel, 2000) -
Failure of two consecutive annual treatments with ivermectin to eradicate the reindeer parasites (Hypoderma tarandi, Cephenemyia trompe and Linguatula arctica) from an island in northern Norway.
(Journal article; Tidsskriftartikkel; Peer reviewed, 2002)The highly efficient endectocide ivermectin is used to reduce the burden of parasites in many semidomestic reindeer herds in northern Fennoscandia. In the autumn of 1995 and 1996 all reindeer on the island of Silda (42 km2) were treated with ivermectin in an attempt to eradicate the warble fly (Hypoderma (=Oedemagena) tarandi (L.)), the nose bot fly (Cephenemyia trompe (Modeer)) (Diptera: Oestridae) ... -
Kartlegging av fangstbare forekomster av kråkeboller i Vest-Finnmark
(Research report; Forskningsrapport, 2002) -
Kartlegging av kråkebolleforekomster i Indre Laksefjord i Finnmark
(Research report; Forskningsrapport, 2002) -
Induction of tetraploid gynogenesis in the European sea bass, Dicentrarchus labrax L.
(Journal article; Tidsskriftartikkel; Peer reviewed, 2003)A preliminary study on tetraploid gynogenetic induction in the European sea bass was performed by pressure-blocking the second polar body release and the first cleavage in eggs fertilized with ultraviolet-irradiated sperm. Fertilization of eggs with genetically inactivated sperm produced only haploid development that terminated around hatching. Pressure treatments (8.500 psi for 2 min) applied at 6 ... -
Nomadic pastoralism in the Aru basin of Tibet’s Chang Tang.
(Journal article; Peer reviewed; Tidsskriftartikkel, 2004)Nomadic pastoralists live at the northern extent of human habitation within the ca. 5000 m elevation Aru basin, in the nortwestern part of the Chang Tang Nature Preserve, Tibet. These nomads herd primarily sheep and goats, a lesser number of yaks, and a few horses. Goats are increasing in importance because of the value of cashmere wool in national and international markets. Although sheep wool ... -
Fjellrev i Finnmark : forskning og tiltak 2004
(Research report; Forskningsrapport, 2004) -
Fangst av kråkeboller med feller ved Hjelmsøy i Finnmark
(Research report; Forskningsrapport, 2004) -
Effect of red and far red light on inhibition of hypocotyl elongation in ecotypes of Betula pendula Roth.
(Journal article; Tidsskriftartikkel; Peer reviewed, 2005) -
Haematological and physiological characteristics of diploid and triploid sea bass, Dicentrarchus labrax L.
(Journal article; Tidsskriftartikkel; Peer reviewed, 2005)The purpose of this study was to determine whether diploid and triploid sea bass differed in terms of main haematological and physiological characteristics. Diploid and triploid fish were produced by sub-optimal pressure treatments and held in communal environments under standard rearing conditions. Total red blood cell count (RBCC), haemoglobin concentration (Hb), hematocrit (Hct), mean cell volume ... -
A shortcut method for sexing juvenile European sea bass, Dicentrarchus labrax L.
(Journal article; Tidsskriftartikkel; Peer reviewed, 2005)The objective of this study was to develop a rapid and effective method of sexing juvenile sea bass with minimum labour and material.To this end, the gonad squash mount technique was applied along with macroscopic techniques for sexing a large number of experimental fish at the age of 215-275 days post fertilization (p.f.). At this age, 90% of the 3894 fish could be unambiguously sexed by ... -
Fjellrev i Finnmark : forskning og tiltak 2005
(Research report; Forskningsrapport, 2005) -
Drainage basin nutrient inputs and eutrophication: an integrated approach
(Book; Bok, 2005-01-06)Eutrophication is an increase in primary production due to increased nutrient supply and its consequences. In its widest sense eutrophication means any increase of nutrient availability that increases primary production. Frequently, however, eutrophication is understood exclusively as the consequence of nutrient input by anthropogenic activities. The primary consequence of eutrophication in aquatic ... -
Eutrophication of the East African Great Lakes
(Chapter; Bokkapittel, 2005-01-06)Several of the African Great Lakes are distinctive for their very long water residence time >100 years. Incoming nutrients will be retained within the lakes and recovery will be slow even if inputs are reduced. While changes in chemistry and plankton composition of Lake Malawi have not been extreme to date, strong eutrophication is already happening in Lake Victoria, where damage has reduced its ... -
Integrated approaches to drainage basin nutrient inputs and coastal eutrophication: an introduction
(Chapter; Bokkapittel, 2005-01-06)Ingress Eutrophication is an increase in primary production due to increased nutrient supply and its consequences. In its widest sense eutrophication means any increase of nutrient availability that increases primary production. Frequently, however, eutrophication is understood exclusively as the consequence of nutrient input by anthropogenic activities. The primary consequence of ...