Browsing Department of Biological Sciences by Title
Now showing items 1466-1485 of 2216
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A new intracellular bacterium, Candidatus Similichlamydia labri sp. nov. (Chlamydiaceae) producing epitheliocysts in ballan wrasse, Labrus bergylta (Pisces, Labridae)
(Peer reviewed; Journal article, 2015-03)Certain wrasse species (Labridae) are used as cleaner fish in salmon farms on the Norwegian coast, reducing salmon louse intensities. The pathogen repertoire of wrasse in Norway is poorly known, and the objective of the ... -
New methods in Palaeopalynology: Classification of pollen through pollen chemistry
(Doctoral thesis, 2021-11-04)Pollen grains are one of the primary tools of palaeoecologists to reconstruct vegetation changes in the past. The description, counting and analysis of pollen grains (palynology) has contributed to our understanding of ... -
A new molecular phylogeny-based taxonomy of parasitic barnacles (Crustacea: Cirripedia: Rhizocephala)
(Peer reviewed; Journal article, 2019)Rhizocephalans are abundant members of marine ecosystems and are important regulators of crustacean host populations. Morphological and ecological variation makes them an attractive system for evolutionary studies of ... -
A New Ocean State After Nuclear War
(Journal article; Peer reviewed, 2022)Nuclear war would produce dire global consequences for humans and our environment. We simulated climate impacts of US-Russia and India-Pakistan nuclear wars in an Earth System Model, here, we report on the ocean impacts. ... -
A New Species of Osedax (Siboglinidae: Annelida) From Colonization Experiments in the Arctic Deep Sea
(Journal article; Peer reviewed, 2020)Large parcels of organic matter in the deep sea, such as whale carcasses, harbor a very specialized fauna, most famously the bone-eating worms in the genus Osedax (Annelida, Siboglinidae). Although Osedax was first described ... -
A new way forward for ocean-climate policy as reflected in the UNFCCC Ocean and Climate Change Dialogue submissions
(Journal article; Peer reviewed, 2022)The ocean plays a central role in climate change mitigation and adaptation. However, climate and ocean policies have been historically siloed. After decades of slow convergence, the Ocean and Climate Change Dialogue, decided ... -
New wine in old bottles: Modification of the Na+/K+-ATPase enzyme activity assay and its application in salmonid aquaculture
(Journal article; Peer reviewed, 2023)The Na+, K+ ATPase (NKA) enzyme is important to generate the transmembrane ion gradient in the gills, intestine, and kidneys, hence, is vital for secondary transport of fluids and different solutes in teleosts. Gill NKA ... -
Next-generation field courses: Integrating Open Science and online learning
(Journal article; Peer reviewed, 2021)As Open Science practices become more commonplace, there is a need for the next generation of scientists to be well versed in these aspects of scientific research. Yet, many training opportunities for early career researchers ... -
Nicomache (Loxochona) lokii sp. nov. (Annelida: Polychaeta: Maldanidae) from the Loki’s Castle vent field: an important structure builder in an Arctic vent system
(Peer reviewed; Journal article, 2011-07-15)The discovery of the Loki’s Castle vent field at 2,350 m depth on the Arctic mid-ocean ridge in 2008 represents the first known black smoker vent system in the Arctic region. Preliminary results on the benthic invertebrates ... -
Nitrifier abundance and diversity peak at deep redox transition zones
(Peer reviewed; Journal article, 2019-06-14)More than half of the global ocean floor is draped by nutrient-starved sediments characterized by deep oxygen penetration and a prevalence of oxidized nitrogen. Despite low energy availability, this habitat hosts a vast ... -
Nitrogen dynamics in Turbic Cryosols from Siberia and Greenland
(Peer reviewed; Journal article, 2013-12)Turbic Cryosols (permafrost soils characterized by cryoturbation, i.e., by mixing of soil layers due to freezing and thawing) are widespread across the Arctic, and contain large amounts of poorly decomposed organic material ... -
No environmental effect on vaccine-induced reduced growth in Atlantic salmon Salmo salar smolts
(Journal article; Peer reviewed, 2020)Oil-adjuvanted vaccines reduce long-term growth in farmed Atlantic salmon Salmo salar, possibly via an increase in metabolic rate due to the energetic demands of the immune system. We tested this hypothesis by comparing ... -
No influence of oxygen levels on pathogenesis and virus shedding in Salmonid alphavirus (SAV)-challenged Atlantic salmon (Salmo salar L.)
(Peer reviewed; Journal article, 2010-08-21)Background For more than three decades, diseases caused by salmonid alphaviruses (SAV) have become a major problem of increasing economic importance in the European fish-farming industry. However, experimental infection ... -
No room for dessert: A mechanistic model of prey selection in gut-limited predatory fish
(Peer reviewed; Journal article, 2020)Predatory fish structure communities through prey pursuit and consumption and, in many marine systems, the gadoids are particularly important. These predators have flexible feeding behaviours and often feed on large prey ... -
Nodavirus in farmed Atlantic cod Gadus morhua in Norway
(Peer reviewed; Journal article, 2007-09-14)Viral encephalopathy and retinopathy (VER) was diagnosed in 5 to 24 g sized farmed Atlantic cod Gadus morhua kept in sea cages at Parisvatn, Hordaland county, on the west coast of Norway. Moderate mortality (10 to 15%) was ... -
Non-conserved C-terminal regions in the histone recognition module CW, determines specificity, stability and affinity towards monomethylated histone tails
(Master thesis, 2014-11-20)Histone modifications have an important role in epigenetic gene regulation and contribute to the cellular memory system. It has been well documented that certain patterns of histone modifications are associated with different ... -
Non-visual photoreceptive systems in early development of Atlantic halibut (Hippoglossus hippoglossus)
(Doctoral thesis, 2014-03-28)Non-visual photoreception is thought to be involved in a range of behavioural and physiological processes in teleost fishes, such as synchronisation of circadian and circannual rhythms, but also regulation of skin pigmentation, ... -
Norovirus in Pacific Oysters : Insights into Molecular Viability Assays and Mitigation Strategies to Improve Food Safety
(Doctoral thesis, 2022-11-21)Som en av de vanligste årsakene til gastroenteritt, har norovirus (NoV) vært en belastning for pasienter, helsemyndigheter og samfunnet over hele verden. Patogenet overføres gjennom inntak av infektive viruspartikler. Mange ... -
North African wetland lakes: characterization of nine sites included in the CASSARINA Project
(Peer reviewed; Journal article, 2001)Exploitation of land and water resources has increased rapidly in North Africa during the 20th century, paralleling regional population growth. As part of the CASSARINA Project (see Flower, 2001), the environmental status ... -
The Northern Lapwing (Vanellus vanellus) in Norway: Exploring the population decline through bird ringing data and habitat selection
(Master thesis, 2014-11-05)The Northern Lapwing (Vanellus vanellus) is one of many farmland birds that have been suffering from population declines as a result of agricultural intensification over the past few decades. Through the use of ringing- ...