Blar i Department of Biological Sciences på tittel
Viser treff 261-280 av 2289
-
Change and variation in a hyer-arid cultural landscape: A merhodological approach using remote sensing timeseries (Landsat MSS and TM, 1973-1996) from the Wadi vegetation of the eastern desert of Egypt
(Master thesis, 1999)Nine wadi localities in a hyper-arid environment have been registered in the field and studied using earth observation data. Branch height, crown – and trunk – diameter, and indicators of land-use such as present traces ... -
Changes in circulating insulin-like growth factor-1 and its binding proteins in yearling rainbow trout during spring under natural and manipulated photoperiods and their relationships with gill Na+, K+-ATPase and body size
(Journal article; Peer reviewed, 2022)Smoltification in salmonids occurs during spring in response to increasing photoperiod to prepare for marine life. Smoltification is associated with increased hypo-osmoregulatory ability and enhanced growth potential, ... -
Changes in gill Na+K+ATPase alfa subunit isoform expression during smoltification and in maturing male Atlantic salmon
(Master thesis, 2011-06-22)Distinct freshwater and seawater chloride cells have been identified in salmon gills and recent studies also suggest that there are specific freshwater (α1a) and seawater (α1b) isoforms of the α subunit ... -
Changes in histidine metabolism through smoltification and effect on cataract development in Atlantic Salmon (Salmo salar L.)
(Master thesis, 2021-01-20)Cataract is the collective definition of any light scattering opacities of the eye. Cataractogenesis is caused when there is a noticeable irregular light scattering because there has been a change in the tridimensional ... -
Changes in marine prokaryote composition with season and depth over an Arctic polar year
(Peer reviewed; Journal article, 2017-04-13)As the global climate changes, the higher latitudes are seen to be warming significantly faster. It is likely that the Arctic biome will experience considerable shifts in ice melt season length, leading to changes in ... -
Changes in Norway pout (Trisopterus esmarkii) abundance and distribution under warming conditions in the Barents Sea
(Master thesis, 2014-06-02)This study uses a 20-year time series of standardized bottom trawl winter survey data (1994 -2013) from the Barents Sea, to investigate the changes in abundance and distributional range of Norway pout (Trisopterus esmarkii) ... -
Changes in Sea-Ice Protist Diversity With Declining Sea Ice in the Arctic Ocean From the 1980s to 2010s
(Journal article; Peer reviewed, 2020)The large declines in Arctic sea-ice age and extent over the last decades could have altered the diversity of sea-ice associated unicellular eukaryotes (referred to as sea-ice protists). A time series from the Russian ... -
Changes in water temperature and oxygen: the effect of triploidy on performance and metabolism in large farmed Atlantic salmon
(Peer reviewed; Journal article, 2018)In salmon farming, the use of sterile triploids (3N) can mitigate the problem of escapees interbreeding with wild salmon. However, triploid salmon appear less tolerant to high water temperatures and low oxygen levels ... -
Changing contributions of stochastic and deterministic processes in community assembly over a successional gradient
(Peer reviewed; Journal article, 2017)Successional dynamics in plant community assembly may result from both deterministic and stochastic ecological processes. The relative importance of different ecological processes is expected to vary over the successional ... -
Characterisation of the paralytic shellfish toxin biosynthesis gene clusters in Anabaena circinalis AWQC131C and Aphanizomenon sp. NH-5
(Peer reviewed; Journal article, 2009-03-30)Background: Saxitoxin and its analogues collectively known as the paralytic shellfish toxins (PSTs) are neurotoxic alkaloids and are the cause of the syndrome named paralytic shellfish poisoning. PSTs are produced by a ... -
Characteristics of DNA polymerase I from an extreme thermophile, Thermus scotoductus strain K1
(Journal article; Peer reviewed, 2021)Several native and engineered heat-stable DNA polymerases from a variety of sources are used as powerful tools in different molecular techniques, including polymerase chain reaction, medical diagnostics, DNA sequencing, ... -
Characterization of a novel RXR receptor in the salmon louse (Lepeophtheirus salmonis, Copepoda) regulating growth and female reproduction
(Peer reviewed; Journal article, 2015-02-14)Background: Nuclear receptors have crucial roles in all metazoan animals as regulators of gene transcription. A wide range of studies have elucidated molecular and biological significance of nuclear receptors but there are ... -
Characterization of a VHS virus genotype III isolated from rainbow trout (Oncorhychus mykiss) at a marine site on the west coast of Norway
(Peer reviewed; Journal article, 2010-01-26)Background Norwegian production of rainbow trout (Oncorhynchus mykiss) has been without any outbreaks of VHS for many years until the disease emerged in a farm in western Norway in November 2007. The fish were, in addition ... -
Characterization of benthic communities at Loki’s Castle vent field using a photomosaic
(Master thesis, 2021-08-30)Loki’s Castle was the first black smoker hydrothermal vent field to be discovered on the Arctic Mid-Ocean Ridge (AMOR), and is known to host a specialized and highly endemic fauna. Despite being studied since its discovery ... -
Characterization of CD4+ T-Cell Subsets and Responses in Lumpfish (Cyclopterus lumpus).
(Master thesis, 2022-06-01) -
Characterization of Evolutionarily Conserved Trypanosoma cruzi NatC and NatA-N-Terminal Acetyltransferase Complexes
(Peer reviewed; Journal article, 2019-03-06)Protein N-terminal acetylation is a co- and posttranslational modification, conserved among eukaryotes. It determines the functional fate of many proteins including their stability, complex formation, and subcellular ... -
Characterization of hARD2, a processed hARD1 gene duplicate, encoding a human protein N-α-acetyltransferase
(Peer reviewed; Journal article, 2006-04-25)Background: Protein acetylation is increasingly recognized as an important mechanism regulating a variety of cellular functions. Several human protein acetyltransferases have been characterized, most of them catalyzing ... -
Characterization of insertion variants of the carboxyl-ester lipase (CEL) gene - A role in pancreatic disease?
(Master thesis, 2018-06-26)Carboxyl ester lipase (CEL) is a digestive enzyme that is mainly expressed in the acinar cells of the pancreas. The CEL gene is highly polymorphic due to a variable number of tandem repeat (VNTR) region in the last exon. ...