Browsing Publikasjoner fra CRIStin by Title
Now showing items 1927-1946 of 3038
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Norwegian kelp forest restauration - Kelp restoration actions in Norway, 1988-2022.
(Lecture, 2023)The extensive kelp forests between 58 and 71oN along the Norwegian coastline have suffered greatly from sea urchin grazing since the 1970-ies (Mid and North Norway) and from turf/filamentous algal competition (South and ... -
The Norwegian small scale fishery and data provided for the IHH FAO-Duke-WorldFish project
(Rapport fra havforskningen;2022 - 18, Research report, 2022) -
Not that clean: Aquaculture-mediated translocation of cleaner fish has led to hybridization on the northern edge of the species' range
(Peer reviewed; Journal article, 2021)Translocation and introduction of non-native organisms can have major impacts on local populations and ecosystems. Nevertheless, translocations are common practices in agri- and aquaculture. Each year, millions of wild-caught ... -
Not too slow, not too fast: water currents affect group structure, aggression and welfare in postsmolt Atlantic salmon Salmo salar
(Peer reviewed; Journal article, 2016) -
Notes on age determination, size and age structure, longevity and growth of co-occurring macrourid fishes
(Peer reviewed; Journal article, 2021)Nineteen species of the deep-water fish family Macrouridae inhabit the Mid-Atlantic Ridge (MAR) of the North Atlantic. Size and age structure, longevity and length at age were explored for seven of the more abundant species: ... -
Novel adverse outcome pathways revealed by chemical genetics in a developing marine fish
(Peer reviewed; Journal article, 2017)Crude oil spills are a worldwide ocean conservation threat. Fish are particularly vulnerable to the oiling of spawning habitats, and crude oil causes severe abnormalities in embryos and larvae. However, the underlying ... -
Novel feeding interactions amplify the impact of species redistribution on an Arctic food web
(Peer reviewed; Journal article, 2020)Species are redistributing globally in response to climate warming, impacting ecosystem functions and services. In the Barents Sea, poleward expansion of boreal species and a decreased abundance of Arctic species are causing ... -
Novel large-scale mapping highlights poor state of sea trout populations
(Peer reviewed; Journal article, 2024)1. The state of sea trout in 1251 Norwegian watercourses was assessed based on a scoring system for human pressures, abundance data, and local knowledge. 2. Over 16,000 km of rivers and lakes were available to sea trout ... -
A novel lice control method: photochemical treatment (Photolice)
(Rapport fra havforskningen;2023 - 31, Research report, 2023)Control of salmon lice has long been the biggest challenge for the further development of a sustainable industry. Preventive measures are expected to play an increasing role, but experience suggests that drug treatment ... -
A novel method for the rapid enumeration of planktonic salmon lice in a mixed zooplankton assemblage using fluorescence
(Peer reviewed; Journal article, 2022)The relative rarity of the planktonic larval stages of salmon lice in comparison to other animals captured in a zooplankton assemblage is an obstacle to estimating their abundance and distribution. Due to the labour ... -
A novel probabilistic survey method for at sea sampling in pelagic fisheries – the Norwegian catch sampling lottery
(Peer reviewed; Journal article, 2022)Reliable information on the age- and size-structure of the annual harvest of major commercial fish stocks is crucial input to analytical stock assessments. Such information is usually obtained from landing data (census of ... -
Novel tag-based method for measuring tailbeat frequency and variations in amplitude in fish
(Peer reviewed; Journal article, 2023)The tailbeat frequency (TBF) together with tailbeat amplitude (TBA) of fish are tightly correlated with swimming speed. In addition, these parameters can be used as indicators of metabolic rate and general activity level, ... -
Numerical models and long term monitoring - How can numerical models be used to support in situ sampling and survey design for long term hydrographic monitoring in standard sections?
(Rapport fra havforskningen;2024 - 18, Research report, 2024)As a part of regular monitoring of the marine environment, IMR conducts 10 fixed transects on a multiannual basis during which hydrographical, chemical and plankton data are collected at the same positions several times a ... -
Numerous Sublinear Sets of Holes in Sediment on the Northern Mid-Atlantic Ridge Point to Knowledge Gaps in Understanding Mid-Ocean Ridge Ecosystems
(Peer reviewed; Journal article, 2022)On 13 July 2004, during an expedition exploring biodiversity along the northern Mid-Atlantic Ridge, an ROV dive recorded videos of numerous sublinear sets of holes in sediment at ca. 2,082 m depth. The location was north ... -
Nutrient and chemical contaminant levels in five marine fish species from Angola—The EAF-Nansen programme
(Peer reviewed; Journal article, 2020) -
Nutrient and contaminant exposure from smoked European anchovy (Engraulis encrasicolus): Implications for children's health in Ghana
(Peer reviewed; Journal article, 2022)Inadequate nutrient intakes are frequent among young children in low- and middle-income countries, causing prevalent micronutrient deficiencies. In Ghana, small smoked fish are the most frequently consumed animal source ... -
Nutrient composition of 19 fish species from Sri Lanka and potential contribution to food and nutrition security
(Peer reviewed; Journal article, 2020)Fish is an important part of the Sri Lankan diet. However, existing data on the nutrient composition of fish in Sri Lanka is highly outdated and limited. The aim of this study was to report the nutrient composition of ... -
Nutrient Composition of Demersal, Pelagic, and Mesopelagic Fish Species Sampled Off the Coast of Bangladesh and Their Potential Contribution to Food and Nutrition Security—The EAF-Nansen Programme
(Peer reviewed; Journal article, 2020)Fish is a major part of the Bangladeshi diet, but data on the nutrient composition of marine fish species are sparse. Mesopelagic fish may be a new potential resource of food and nutrients; however, nutrient composition ... -
Nutrient concentrations in minke whale faeces and the potential impact on dissolved nutrient pools off Svalbard, Norway
(Peer reviewed; Journal article, 2023)There is increasing interest in assessing the impact of whales on nutrient and carbon cycling in the ocean. By fertilising surface waters with nutrient-rich faeces, whales may stimulate primary production and thus carbon ... -
Nutrient limitation can explain a rapid transition to synchrony in an upwelling-driven diatom community
(Peer reviewed; Journal article, 2022)Identifying the mechanisms controlling the temporal dynamics of ecological communities is key to understand their vulnerability to natural and anthropogenic impacts and to identify early warnings of critical transitions. ...