Browsing Department of Biological Sciences by Title
Now showing items 1024-1043 of 2289
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The Hexactinellid Deep-Water Sponge Vazella pourtalesii (Schmidt, 1870) (Rossellidae) Copes With Temporarily Elevated Concentrations of Suspended Natural Sediment
(Journal article; Peer reviewed, 2021)Plumes of re-suspended sediment potentially smother and clog the aquiferous system of filter-feeding sponges with unknown implications for their health. For the first time, we examined the physiological responses of repeated ... -
The Hfq RNA chaperone in the deep-branching Thermotogales lineage: Attempts to reveal its biological role
(Master thesis, 2015-02-01)Bacteria frequently use small RNAs (sRNAs) as part of their regulation of gene expression at the post-transcriptional level. Many of these sRNAs have been shown to depend on the RNA chaperone protein Hfq for their regulatory ... -
Hidden in the fog: Morphological and molecular characterisation of Derogenes varicus sensu stricto (Trematoda, Derogenidae) from Sweden and Norway, and redescription of two poorly known Derogenes species
(Journal article; Peer reviewed, 2023)Derogenes varicus (Müller, 1784) is widely reported as a trematode with exceptionally low host specificity and a wide, bipolar distribution. However, several recent studies have suggested that D. varicus represents a species ... -
Hiding in the background: community-level patterns in invertebrate herbivory across the tundra biome
(Peer reviewed; Journal article, 2019)Invertebrate herbivores depend on external temperature for growth and metabolism. Continued warming in tundra ecosystems is proposed to result in increased invertebrate herbivory. However, empirical data about how current ... -
High abundances of small copepods early developmental stages and nauplii strengthen the perception of a non-dormant Arctic winter
(Journal article; Peer reviewed, 2022)The traditional view is that the Arctic polar night is a quiescent period for marine life, but recent reports of high levels of feeding and reproduction in both pelagic and benthic taxa have challenged this. We examined ... -
High Arctic Invertebrate Biogeography. Patterns and Colonization Processes since the Last Glacial Maximum
(Doctoral thesis, 2011-09-22)The biogeography of Arctic terrestrial invertebrate species, and particularly processes creating and determining patterns of species distribution, have rarely been considered as a whole, but rather on a regional basis, ... -
High CO2 concentration and iron availability determine the metabolic inventory in an Emiliania huxleyi-dominated phytoplankton community
(Journal article; Peer reviewed, 2020)Ocean acidification (OA), a consequence of anthropogenic carbon dioxide (CO2) emissions, strongly impacts marine ecosystems. OA also influences iron (Fe) solubility, affecting biogeochemical and ecological processes. We ... -
High fish density delays wound healing in Atlantic salmon (Salmo salar)
(Peer reviewed; Journal article, 2018-11-15)In this study, we look closer at how high fish densities influence wound repair mechanisms in post-smolt Atlantic salmon. The fish were wounded with a 5 mm skin punch biopsy needle and stocked at two different densities, ... -
High prevalence of Ichthyophonus sp. infections in Northeast Atlantic mackerel (Scomber scombrus)
(Journal article; Peer reviewed, 2022) -
High resolution Late-glacial and early-Holocene summer air temperature records from Scotland inferred from Chironomid assemblages
(Peer reviewed; Journal article, 2012-05-18)Lateglacial and early-Holocene mean July air temperatures have been reconstructed, using a chironomid-based inference model, from lake-sediment sequences from Abernethy Forest, in the eastern Highlands of Scotland, and ... -
High-elevation limits and the ecology of high-elevation vascular plants: legacies from Alexander von Humboldt
(Journal article; Peer reviewed, 2021)Alexander von Humboldt and Aimé Bonpland in their Essay on the Geography of Plants discuss what was known in 1807 about the elevational limits of vascular plants in the Andes, North America, and the European Alps and suggest ... -
High-quality draft genome of the methanotroph Methylovulum psychrotolerans Str. HV10-M2 isolated from plant material at a high-altitude environment
(Peer reviewed; Journal article, 2018-04-12)Here we present the genome of Methylovulum psychrotolerans strain HV10-M2, a methanotroph isolated from Hardangervidda national park (Norway). This strain represents the second of the two validly published species genus ... -
High-throughput metabarcoding of eukaryotic diversity for environmental monitoring of offshore oil-drilling activities
(Peer reviewed; Journal article, 2016-09)As global exploitation of available resources increases, operations extend towards sensitive and previously protected ecosystems. It is important to monitor such areas in order to detect, understand and remediate environmental ... -
High-value fatty acids from microalgae. Bioprospecting and outdoor cultivation at northern latitudes
(Doctoral thesis, 2018-05-11)Achieving a sustainable and cost-efficient production is imperative to establish microalgae as a new feedstock for aquaculture, where they can potentially replace the use of fish oil from wild catch as a source for the ... -
Higher mortality of the less suitable brown trout host compared to the principal Atlantic salmon host when infested with freshwater pearl mussel (Margaritifera margaritifera) glochidia
(Journal article; Peer reviewed, 2021)The freshwater pearl mussel (Margaritifera margaritifera) is a highly host-specific parasite, with an obligate parasitic stage on salmonid fish. Atlantic salmon (Salmo salar) and brown trout (Salmo trutta f. trutta and ... -
Highest treeline in the Northern Hemisphere found in Southern Tibet
(Peer reviewed; Journal article, 2007)Three new records of the highest treelines in the northern hemisphere are presented here, based on the definition of a “tree.” The tree species with the highest treeline in the northern hemisphere is Juniperus tibetica ... -
Highly conserved composite transposon harbouring aerobactin iuc3 in Klebsiella pneumoniae from pigs
(Journal article; Peer reviewed, 2023)Klebsiella pneumoniae is an important opportunistic pathogen associated with severe invasive disease in humans. Hypervirulent K. pneumoniae, which are K. pneumoniae with several acquired virulence determinants such as the ... -
Histochemical characterization of AGD lesions in ballan wrasse (Labrus bergylta)
(Master thesis, 2017-07-07)With the increasing problem of sea lice (Lepeoptheirus salmonis) in production of Atlantic salmon (Salmo salar), the use of biological and non-drug treatments, such as cleaner fish, like ballan wrasse (Labrus bergylta) and ... -
Histone complement of a rapidly evolving chordate Oikopleura dioica: Developmental and sex-specific deployment of novel and universal histone variants and their posttranslational modifications
(Doctoral thesis, 2010-10-22)The packaging of DNA into nucleosomes is a fundamentally conserved property of the eukaryotic nucleus which is evident in the conservation of histone sequences. Nevertheless, it is now clear that histone sequence variants ... -
Histone variant innovation in a rapidly evolving chordate lineage
(Peer reviewed; Journal article, 2011-07-15)Background: Histone variants alter the composition of nucleosomes and play crucial roles in transcription, chromosome segregation, DNA repair, and sperm compaction. Modification of metazoan histone variant lineages occurs ...