English
norskArtikler, rapporter og annet (arktisk og marin biologi): Nye registreringer
Viser treff 1581-1600 av 1643
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Future Arctic Ocean Seasonal Ice Zones and Implications for Pelagic-Benthic Coupling
(Journal article; Tidsskriftartikkel; Peer reviewed, 2011)Despite concerns about rapid changes in Arctic Ocean physical forcing and ecosystem function, quantitative knowledge and time series are scarce. The number of reliable physical-biological coupled models and models based on remote sensing is small. To improve our comprehension of carbon flux in the most prominent Arctic Ocean feature, the seasonal ice zone, a possible first step is to evaluate how ... -
Hans Nordeng : a man of principles
(Journal article; Tidsskriftartikkel; Peer reviewed, 2011) -
Population dynamics of tundra voles in relation to configuration of willow thickets in southern arctic tundra
(Journal article; Tidsskriftartikkel; Peer reviewed, 2011)The areal extent and conWguration of thickets of willow shrubs are currently changing in the Arctic both as an eVect of global warming and changed browsing pressure of reindeer. These changes have been predicted to impact the distribution and abundance of wildlife species relying on willow thickets as habitat. We assessed the relation between variables quantifying willow thicket configuration and ... -
The importance of willow thickets for ptarmigan and hares in shrub tundra : the more the better?
(Journal article; Tidsskriftartikkel; Peer reviewed, 2012) -
A high local species richness and biodiversity within high-latitude calcareous aggregates of tube-building polychaetes
(Journal article; Tidsskriftartikkel; Peer reviewed, 2011)In general, biodiversity and species richness follow the latitudinal diversity gradient and decrease from the tropics towards the poles. Exceptions have however been recorded, as for deep coldwater coral reefs at high latitudes, which comprise biodiversity hotspots. Here we assess and characterise the high-latitude (69 degrees N) species richness and diversity of a local shallow-water fauna ... -
Interspecific and interploidal gene flow in Central European Arabidopsis (Brassicaceae)
(Journal article; Tidsskriftartikkel; Peer reviewed, 2011)Effects of polyploidisation on gene flow between natural populations are little known. Central European diploid and tetraploid populations of Arabidopsis arenosa and A. lyrata are here used to study interspecific and interploidal gene flow, using a combination of nuclear and plastid markers. Ploidal levels were confirmed by flow cytometry. Network analyses clearly separated diploids according to ... -
Bioaccumulation of phenanthrene and benzo[a]pyrene in Calanus finmarchicus
(Journal article; Tidsskriftartikkel, 2011)With petroleum exploration and development expanding in the Arctic (AMAP, 2007) there is a need to obtain additional information on the ecotoxicology of Arctic organisms. Here we perform 192 hr laboratory exposure experiments on the keystone Arctic zooplankton species, Calanus finmarchicus. We trace the accumulation and depuration of two polycyclic aromatic hydrocarbons (PAHs): phenanthrene and ... -
Seasonal microbial processes in a high-latitude fjord (Kongsfjorden, Svalbard) : I. Heterotrophic bacteria, picoplankton and nanoflagellates
(Journal article; Tidsskriftartikkel; Peer reviewed, 2011)Temporal dynamics of the microbial food web in the Barents Sea and adjacent water masses in the European Arctic are to a large extent unknown. Seasonal variation in stocks and production rates of heterotrophic bacteria and phototrophic and heterotrophic picoplankton and nanoflagellates was investigated in the upper 50 m of the highlatitude Kongsfjorden, Svalbard, during six field campaigns between ... -
Microbial processes in a high-latitude fjord (Kongsfjorden, Svalbard) : II. Ciliates and dinoflagellates
(Journal article; Tidsskriftartikkel; Peer reviewed, 2011)The composition and ecological role of ciliates and dinoflagellates were investigated at one station in Kongsfjorden, Svalbard, during six consecutive field campaigns between March and December 2006. Total ciliate and dinoflagellate abundance mirrored the seasonal progression of phytoplankton, peaking with 5.8 9 104 cells l-1 in April at an average chlorophyll a concentration of 10 lg l-1. ... -
Early marine migration of European silver eel(Anguilla anguilla) in Northern Norway
(Journal article; Tidsskriftartikkel; Peer reviewed, 2011) -
Kartlegging av kråkebolleforekomster i Indre Laksefjord i Finnmark
(Research report; Forskningsrapport, 2002) -
Kartlegging av fangstbare forekomster av kråkeboller i Vest-Finnmark
(Research report; Forskningsrapport, 2002) -
Fangst av kråkeboller med feller ved Hjelmsøy i Finnmark
(Research report; Forskningsrapport, 2004) -
Host range, symbiotic effectiveness and nodulation competitiveness of some indigenous cowpea bradyrhizobia isolates from the transitional savanna zone of Ghana
(Journal article; Tidsskriftartikkel; Peer reviewed, 2008) -
Genetically modified food : the dilemma of Africa
(Journal article; Tidsskriftartikkel; Peer reviewed, 2008) -
Effect of red and far red light on inhibition of hypocotyl elongation in ecotypes of Betula pendula Roth.
(Journal article; Tidsskriftartikkel; Peer reviewed, 2005) -
Recent Salmon Declines : A Result of Lost Feeding Opportunities Due to Bad Timing?
(Journal article; Tidsskriftartikkel; Peer reviewed, 2010) -
Reduced Metabolic Cost of Locomotion in Svalbard Rock Ptarmigan (Lagopus muta hyperborea) during Winter
(Journal article; Tidsskriftartikkel; Peer reviewed, 2010) -
An Investigation into the Poor Survival of an Endangered Coho Salmon Population
(Journal article; Tidsskriftartikkel; Peer reviewed, 2010) -
Genetic versus Rearing-Environment Effects on Phenotype : Hatchery and Natural Rearing Effects on Hatchery-and Wild-Born Coho Salmon
(Journal article; Tidsskriftartikkel; Peer reviewed, 2010)
