Results 51 to 60 of about 42,621 (180)

Repeatable individual variation in migration timing in two anadromous salmonids and ecological consequences

open access: yesEcology and Evolution, 2020
Consistent individual differences in behavior have been demonstrated for many animals, but there are few studies of consequences of such repeated behavior in the wild.
Arne Johan Jensen   +4 more
doaj   +1 more source

Nutrient chemistry of a large, deep lake in subarctic Alaska [PDF]

open access: yes, 1977
Project Officer Eldor W. Schallock Assessment and Criteria Development Division Corvallis Environmental Research Laboratory Corvallis, Oregon 97330;Corvallis Environmental Research Laboratory Office of Research and Development U. S.
Casper, L. A.   +2 more
core   +1 more source

Using Linkage Maps as a Tool To Determine Patterns of Chromosome Synteny in the Genus Salvelinus

open access: yesG3: Genes, Genomes, Genetics, 2017
Next generation sequencing techniques have revolutionized the collection of genome and transcriptome data from nonmodel organisms. This manuscript details the application of restriction site-associated DNA sequencing (RADseq) to generate a marker-dense ...
Matthew C. Hale   +3 more
doaj   +1 more source

Investigations into free tropospheric new particle formation in the central Canadian arctic during the winter/spring transition as part of TOPSE [PDF]

open access: yes, 2003
In this paper, we investigate the role of in situ new particle production in the central Canadian sub-Arctic and Arctic as part of the TOPSE experiment.
Cantrell, C A   +11 more
core   +2 more sources

Climate change vulnerability of Arctic char across Scandinavia

open access: yesGlobal Change Biology
AbstractClimate change is anticipated to cause species to shift their ranges upward and poleward, yet space for tracking suitable habitat conditions may be limited for range‐restricted species at the highest elevations and latitudes of the globe. Consequently, range‐restricted species inhabiting Arctic freshwater ecosystems, where global warming is ...
Clint C. Muhlfeld   +7 more
openaire   +3 more sources

Environmental DNA detection of Arctic char (Salvelinus alpinus) in Irish lakes: Development and application of a species‐specific molecular assay

open access: yesEnvironmental DNA, 2020
Populations of Arctic char (Salvelinus alpinus) inhabiting Irish lakes are undergoing a rapid decline. In order to aid monitoring of this species in Irish lakes, a species‐specific qPCR assay was designed and subsequently tested for the detection of ...
Luca Mirimin   +6 more
doaj   +1 more source

A Forest of Blue - Canada's Boreal Forest, the World's Waterkeeper [PDF]

open access: yes, 2011
Describes how the lakes, rivers, and wetlands comprising the boreal forest preserve biodiversity, mitigate global climate change effects, and offer food and cultural benefits to rural communities.

core  

Systematics of Beringian threespine sticklebacks [PDF]

open access: yes, 2000
Thesis (M.S.) University of Alaska Fairbanks, 2000In Pleistocene Beringia, large-scale glaciations exposed high latitude species to variable environmental conditions that created disjunct populations of terrestrial and marine species.
Chythlook, John S.
core  

17beta-estradiol induced vitellogenesis is inhibited by cortisol at the post-transcriptional level in Arctic char (Salvelinus alpinus)

open access: yesReproductive Biology and Endocrinology, 2004
This study was performed to investigate stress effects on the synthesis of egg yolk precursor, vitellogenin (Vtg) in Arctic char (Salvelinus alpinus). In particular the effect of cortisol (F) was determined since this stress hormone has been suggested to
Modig Carina   +2 more
doaj   +1 more source

Identification of Arctic Food Fish Species for Anthropogenic Contaminant Testing Using Geography and Genetics

open access: yesFoods, 2020
The identification of food fish bearing anthropogenic contaminants is one of many priorities for Indigenous peoples living in the Arctic. Mercury (Hg), arsenic (As), and persistent organic pollutants including polychlorinated biphenyls (PCBs) are of ...
Virginia K. Walker   +7 more
doaj   +1 more source

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