Artikler, rapporter og annet (Norges fiskerihøgskole): Recent submissions
Now showing items 121-140 of 1012
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Different types of intuition at the workplace: an integrative review
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-08-16)To make good decisions, employees must manage their own intuitions and be able to anticipate decision-making in their work environment. How well this is accomplished has significant consequences for the workplace. A closer examination indicates that individuals utilize various types of intuition. People’s work context is frequently omitted from studies on the use of intuition, resulting in a ... -
Carnobacteria in fish
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-11-19)Carnobacterium is a genus of Gram-positive bacteria, within family Carnobacteriaceae, and they are catalase- and oxidase-negative, non-sporing bacteria with properties such as CO<sup>2</sup> and L (+)- lactic acid production from glucose, but they are not able to grow on acetate agar. They are ubiquitous lactic acid bacteria and have been isolated from both cold and temperate environments, and ... -
Holistic monitoring of freshwater and terrestrial vertebrates by camera trapping and environmental DNA
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-10-20)The anthropogenic impact on the world's ecosystems is severe and the need for non-invasive, cost-effective tools for monitoring and understanding those impacts are therefore urgent. Here, we combine two such methods in a comprehensive multi-year study; camera trapping (CT) and analysis of environmental DNA (eDNA), in river marginal zones of a temperate, wetland Nature Park in Denmark. CT was ... -
Gillnet colour affects catch efficiency in pearlspot (Etroplus suratensis) tropical estuary fishery
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-10-19)Gillnets are one of the most commonly used fishing gears in both marine and inland waters. Different colour filament nettings are often used in gillnets. However, the effect of gillnet colour on catch efficiency is unclear for most fisheries. Therefore, in this study we investigated the effect of gillnet colour on the catch efficiency in pearlspot (Etroplus suratensis) fishery in Vembanad lake, ... -
Advice on fishing opportunities for Barents Sea capelin in 2024 — ICES subareas 1 and 2 excluding Division 2.a west of 5°W
(Research report; Forskningsrapport, 2023-10-16) -
Alternative Rope Materials in Towed Fishing Gear to Reduce Plastic Waste, A Comparative Study of Mechanical Properties and Tolerance Against Wear and Tear
(Chapter; Bokkapittel, 2023-06)This paper presents a comparative study assessing the wear tolerance of rope materials in demersal fisheries, specifically seine ropes and dolly ropes. Fourteen different rope materials were assessed in this study, including conventional and alternative commercially available synthetic polymers, and biodegradable materials including natural fibre ropes and custom-made polyester monofilaments. The ... -
New marine low trophic resources as food: nutritional and food safety aspects
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-11-01)Food agencies recommend increasing the consumption of aquatic food to promote healthy living and sustainability, and, particularly, to prevent Western lifestyle-related diseases and secure sustainable food systems. This requires growth in global seafood production, and the utilization of low trophic species (LTS) is suggested. LTS are already considered nutritious and important in Asian and ... -
Understanding the effect of design parameters on the filtration efficiency of trawls intended for commercial harvesting of zooplankton
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-11-01)A major challenge for the aquaculture sector is access to sustainable and cost-effective raw materials for feed. Copepods (Calanus spp.) have potential to meet this need for large volumes of marine raw materials to enable sustainable growth of aquaculture production worldwide. However, the lack of an energy- and catch-efficient trawl technology has limited the development of this fishery in the ... -
Enzymatic Hydrolysis of Orange-Footed Sea Cucumber (Cucumaria frondosa)—Effect of Different Enzymes on Protein Yield and Bioactivity
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-10-07)While sea cucumber is a food delicacy in Asia, these food resources are less exploited in Europe. The aim of this study was to determine the chemical composition and potential food applications of the less exploited orange-footed sea cucumber (Cucumaria frondosa). In particular, the antioxidative capacity and free amino acids associated with the umami flavor released by enzymatic hydrolyses by ... -
Are offshore platforms a good candidate to restore functional diversity of reef fish communities in the Arabian Gulf?
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-09-04)Human-made structures are ubiquitous in the marine realm. Complex structures such as oil and gas platforms may constitute a suitable habitat for species in areas where natural reefs have been highly degraded by coastal development. We here explore the suitability of fish assemblages associated to offshore platforms as surrogates for depleted fish stocks from coastal areas. Taxonomic and functional ... -
Associations between serum taurine concentrations in mothers and neonates and the children's anthropometrics and early neurodevelopment: Results from the Seychelles Child Development Study, Nutrition Cohort 2
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-08-25)Background: High concentrations of taurine are present in the developing human brain and maternal breast milk. Taurine is thought to influence fetal growth and brain development based on experimental rodent studies. As fish is an important dietary source of taurine, we investigated associations between taurine concentrations and child outcomes in a high fish consuming population.<p> <p>Objective: ... -
Over 20% of marine fishes shifting in the North and Barents Seas, but not in the Norwegian Sea
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-08-31)Climate warming generally induces poleward range expansions and equatorward range contractions of species’ environmental niches on a global scale. Here, we examined the direction and magnitude of species biomass centroid geographic shifts in relation to temperature and depth for 83 fish species in 9,522 standardised research trawls from the North Sea (1998–2020) to the Norwegian (2000–2020) and ... -
Fra havets bunn til sykehuset
(Chronicle; Kronikk, 2023-08-19)I forskningsgruppa Marbio ved UiT Norges arktiske universitet jobber vi med å finne nye legemidler fra forbindelser som vi henter fra ulike planter, dyr og mikroorganismer. -
Uncovering neutral and adaptive genomic differentiation among European perch with brackish water and freshwater origin in the western Baltic Sea region
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-09-13)Environmental variation across the range of wild species can lead to local adaptations. The Baltic Sea was formed when the Fenno-Scandian ice sheet retreated around 12 thousand years ago, creating a new brackish water habitat colonised by both marine and freshwater fish species. The European perch (Perca fluviatilis) is a predatory freshwater fish with a large geographical distribution across ... -
Reducing plastic pollution caused by demersal fisheries
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-10-07)Marine microplastics generated by wear and tear of bottom trawls and demersal seines during their service life is a growing environmental concern that requires immediate attention. In Norway, these fishing gears account for more than 70 % of the landings of demersal fish species, but they are also the leading sources of microplastics generated by fisheries. Because these two fishing gears are widely ... -
Phylogeography and molecular diversity of two highly abundant Themisto amphipod species in a rapidly changing Arctic Ocean
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-07-30)Rapid warming in the Arctic is drastically impacting marine ecosystems, affecting species communities and food-web structure. Pelagic Themisto amphipods are a major component of the Arctic zooplankton community and represent a key link between secondary producers and marine vertebrates at higher trophic levels. Two co-existing species dominate in the region: the larger Themisto libellula, considered ... -
Effects of Codend Mesh-Shape and Size on the Size Selectivity of Demersal Trawl Targeting Banded Scad (Alepes djedaba) in the Beibu Gulf, South China Sea
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-07-09)In order to optimize the size selectivity of demersal trawl targeting Banded Scad, Alepes djedaba, in the South China Sea (SCS), we tested and compared the selective properties of four experimental codends. These codends included two diamond-mesh codends (T0 codends) with different mesh openings (30 and 35 mm), and two T90 codends (the netting was turned by 90 degrees) with the relatively same ... -
"Når det blåser i fra ØST" - Om bruken av økosystemtjeneste-perspektivet i kystsoneplanleggingen
(Research report; Forskningsrapport, 2019)Denne rapporten er et resultat av prosjektet Coreplan, som har undersøkt om metoder og tilnærminger som finnes i litteraturen om økosystemtjenester kan bidra til å styrke kystsoneforvaltningen. I rapporten diskuterer vi utviklingstrekk i norsk kystsoneplanlegging og hvordan utviklingen i bruken av kysten kan stille nye krav til kystsoneplanleggingen. Vi forklarer bakgrunnen for begrepet økosystemtjenester, ... -
Fish investigations in the Barents Sea winter 2017
(Research report; Forskningsrapport, 2017)Annual catch quotas and other regulations of the Barents Sea fisheries are set through negotiations between Norway and Russia. Assessment of the state of the stocks and quota advices are given by the International Council for the Exploration of the Sea (ICES). Their work is based on survey results and international landings statistics. The results from the demersal fish winter surveys in the ... -
First Steps Towards RAT: A Protocol for Documenting Data Use in the Agent-Based Modeling Process
(Chapter; Bokkapittel, 2021)While there is a number of frameworks and protocols in Agent-Based Modeling (ABM) that support the documentation of different aspects of a simulation study, it is surprising to find only a small number dealing with the handling of data. Here we present the results of discussions we had on the topic at the Lorentz Center workshop on Integrating Qualitative and Quantitative Evidence using Social ...