Department of Biological Sciences
Nye registreringer
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Early life growth is affecting timing of spawning in the semelparous Barents Sea capelin (Mallotus villosus)
(Journal article; Peer reviewed, 2021)Capelin (Mallotus villosus) is a forage fish and a key species in the Barents Sea (BS). The BS capelin are semelparous and hence only spawn once along the north coasts of Norway and Russia before they die. The age at ... -
Marine community changes after a hurricane disturbance across a natural CO2 gradient
(Master thesis, 2021-09-01) -
Otolith “spawning zones” across multiple Atlantic cod populations: Do they accurately record maturity and spawning?
(Journal article; Peer reviewed, 2021)Specific changes identified in the otolith macrostructure of Northeast Arctic cod as “spawning zones” are presumed to represent spawning events, but recent experimental studies have challenged this relationship. Because ... -
Pre-catch and discard mortality in Northeast Atlantic herring and mackerel fisheries: consequences for stock estimates and advice
(Journal article; Peer reviewed, 2021)Unaccounted mortality caused by discarding or pre-catch losses is a major challenge for fisheries management. In pelagic fisheries, a considerable proportion of catches may be lost due to intentional release of unwanted ... -
Operculum PIT tagging: a viable alternative to avoid human consumption in processed salmon
(Journal article; Peer reviewed, 2021)Background: Passive integrated transponder (PIT) tags are commonly used to identify individual fish. However, use of PIT tags in commercial aquaculture research is limited by consumer safety concerns. For farmed fish, it ... -
Genetic variation of Piscine orthoreovirus and the presence of HSMI in farmed Atlantic salmon from Arctic Norway
(Master thesis, 2021-06-22)Piscine orthoreovirus-1 (PRV1) is ubiquitous throughout the world and can cause heart- and skeletal muscle inflammation (HSMI) in farmed Atlantic salmon (Salmo salar). HSMI was first diagnosed in Norway in 1999. The virus ... -
Does vaterite otolith deformation affect post-release survival and predation susceptibility of hatchery-reared juvenile Atlantic Salmon?
(Journal article; Peer reviewed, 2021)Sagittal otoliths are calcareous structures in the inner ear of fishes involved in hearing and balance. They are usually composed of aragonite; however, aragonite can be replaced by vaterite, a deformity which is more ... -
Developing common protocols to measure tundra herbivory across spatial scales
(Journal article; Peer reviewed, 2021)Understanding and predicting large-scale ecological responses to global environmental change requires comparative studies across geographic scales with coordinated efforts and standardized methodologies. We designed, ... -
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 ... -
Effects of nuisance submerged vegetation on the fauna in Norwegian rivers
(Journal article; Peer reviewed, 2021)The abundance of aquatic vegetation is increasing in rivers and lakes worldwide. The aim of this study was to find how the macrophyte Juncus bulbosus Linnaeus affects salmonids and benthic macroinvertebrates in Norwegian ... -
The salmon louse genome: Copepod features and parasitic adaptations
(Journal article; Peer reviewed, 2021)Copepods encompass numerous ecological roles including parasites, detrivores and phytoplankton grazers. Nonetheless, copepod genome assemblies remain scarce. Lepeophtheirus salmonis is an economically and ecologically ... -
Rapid climate changes during the Lateglacial and the early Holocene as seen from plant community dynamics in the Polar Urals, Russia
(Journal article; Peer reviewed, 2021)A detailed, well-dated record of pollen and sedimentary ancient DNA (sedaDNA) for the period 15 000–9500 cal a bp describes changes at Lake Bolshoye Shchuchye in the Polar Ural Mountains, located far east of the classical ... -
A multilevel dataset of microplastic abundance in the world’s upper ocean and the Laurentian Great Lakes
(Journal article, 2021)A total of 8218 pelagic microplastic samples from the world’s oceans were synthesized to create a dataset composed of raw, calibrated, processed, and gridded data which are made available to the public. The raw microplastic ... -
Adult body growth and reproductive investment vary markedly within and across Atlantic and Pacific herring: a meta-analysis and review of 26 stocks
(Journal article; Peer reviewed, 2021)Life-history traits of Pacific (Clupea pallasii) and Atlantic (Clupea harengus) herring, comprising both local and oceanic stocks subdivided into summer-autumn and spring spawners, were extensively reviewed. The main ... -
Trait-based responses to land use and canopy dynamics modify long-term diversity changes in forest understories
(Journal article; Peer reviewed, 2021)Aim: Land use is the foremost cause of global biodiversity decline, but species do not respond equally to land-use practices. Instead, it is suggested that responses vary with species traits, but long-term data on the ... -
Bioaccumulation of mercury and transcriptional responses in tusk (Brosme brosme), a deep-water fish from a Norwegian fjord
(Journal article; Peer reviewed, 2021)High concentrations of mercury (Hg) have been documented in deep-water fish species from some Norwegian fjords. In this study, tusk (Brosme brosme) was sampled from four locations in the innermost parts of Sognefjorden in ... -
The effects of the chemotherapeutants hydrogen peroxide, deltamethrin and azamethiphos on non-target crustaceans
(Doctoral thesis, 2021-09-16)I present new knowledge on the toxicity of three major bath treatment chemotherapeutants used in Norway. Previously, regarding the toxicity studies of hydrogen peroxide (H2O2) alone, a total of twelve non-target crustaceans ... -
Anthropogenic disturbance modifies long-term changes of boreal mountain vegetation under contemporary climate warming
(Journal article; Peer reviewed, 2021)Aims Accelerating high-latitude climate warming drives shrub expansion in open landscapes and alters species distributions and compositions of plant communities. Simultaneously, various land use practices cause disturbance ... -
Moving forward in microplastic research: A Norwegian perspective
(Journal article; Peer reviewed, 2021)Given the increasing attention on the occurrence of microplastics in the environment, and the potential envi-ronmental threats they pose, there is a need for researchers to move quickly from basic understanding to applied ... -
Understanding the occurrence and fate of microplastics in coastal Arctic ecosystems: The case of surface waters, sediments and walrus (Odobenus rosmarus)
(Journal article; Peer reviewed, 2021)The Arctic ecosystem receives contaminants transported through complex environmental pathways – such as atmospheric, riverine and oceanographic transport, as well as local infrastructure. A holistic approach is required ...
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