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norskBlar i tittel Artikler, rapporter og annet (Norges fiskerihøgskole)
Viser treff 7-26 av 929
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Administration of watermelon rind powder to Nile tilapia (Oreochromis niloticus) culture under biofloc system: Effect on growth performance, innate immune response, and disease resistance
(Journal article; Tidsskriftartikkel; Peer reviewed, 2020-06-07)An eight-week experiment was performed to assess the effectiveness of watermelon rind powder (WMRP) on growth efficiency, immunity, and disease resistance of Nile tilapia, <i>O. niloticus</i>. Three hundred fish (17.14 ± 0.12 g) were fed five diets; 0 (Diet 1- control), 20 g kg<sup>−1</sup> WMRP (Diet 2), 40 g kg<sup>−1</sup> WMRP (Diet 3), 80 g kg<sup>−1</sup> WMRP (Diet 4), and 160 g kg<sup>−1</sup> ... -
Advancing research for the management of long-lived species: A case study on the Greenland Shark
(Journal article; Tidsskriftartikkel; Peer reviewed, 2019-04-02)Long-lived species share life history traits such as slow growth, late maturity, and low fecundity, which lead to slow recovery rates and increase a population’s vulnerability to disturbance. The Greenland shark (Somniosus microcephalus) has recently been recognized as the world’s longest-lived vertebrate, but many questions regarding its biology, physiology, and ecology remain unanswered. Here we ... -
Advection-diffusion models of spiny lobster Palinurus gilchristi migrations for use in spatial fisheries management
(Journal article; Tidsskriftartikkel; Peer reviewed, 2014-02-17) -
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) -
Aktuelle sykdomsutbrudd og diagnoser
(Journal article; Tidsskriftartikkel; Peer reviewed, 2020)Aktuelle diagnoser, «nye» sykdommer og spesielle tilfeller har i mange år blitt presentert under vignetten «Aktuelle sykdomsutbrudd og diagnoser fra Veterinærinstituttet, Mattilsynet og NMBU Veterinærhøgskolen». Redaksjonen er av den oppfatning at dette er nyttig og lett tilgjengelig informasjon som bidrar til å opprettholde medlemmenes kunnskap om utviklingen innen diagnostikk og overvåkning av ... -
Aldri mer 18. april!
(Chronicle; Kronikk, 2013-04-18)Den 18. april 1989 er et viktig vendepunkt i norsk fiskerihistorie. Det var den dagen Fiskeridepartementet stoppet kystflåtens fiske etter torsk nord for 62. breddegrad - midt i den tradisjonelle sesongen. Reaksjonene lot ikke vente på seg. Historiens første totalforbud mot å fiske torsk var “et sjokk til dyp ettertanke”, het det i Fiskeribladet. -
Algal amendment enhances biogenic methane production from coals of different thermal maturity
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-03-10)The addition of small amounts of algal biomass to stimulate methane production in coal seams is a promising low carbon renewable coalbed methane enhancement technique. However, little is known about how the addition of algal biomass amendment affects methane production from coals of different thermal maturity. Here, we show that biogenic methane can be produced from five coals ranging in rank ... -
Allelic losses and gains during translocations of a high conservation value fish, Coregonus lavaretus
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-06-09)<ol type="1"> <li>The use of translocations to establish new or ‘refuge’ populations for species with high conservation value is controversial but widely used in conservation management. One of the risks of this approach is that an establishing population does not adequately capture the genetic diversity of the donor gene pool. This effect, rarely examined, is tested here.</li> <li>In this study ... -
Allochrony as a potential driver for reproductive isolation in adaptive radiations of European whitefish ecomorphs
(Journal article; Tidsskriftartikkel; Peer reviewed, 2019-04-29)In northern Fennoscandian lakes, monophylogenetic lineages of postglacial fishes are radiating into several adaptive forms, but the speciation process is still at an incipient stage. The speciation process has received increased attention over the years, but the underlying mechanisms and drivers are still debated and poorly understood. European whitefish (<i>Coregonus lavaretus</i> [L.]) is the most ... -
Alt på land
(Journal article; Tidsskriftartikkel; Peer reviewed, 2020-03-31)Mye av restråstoffet som oppstår om bord på norske torsketrålere blir ikke ført til land. I denne artik-kelen drøfter vi hvorfor fartøy i akkurat denne gruppen ikke utnytter restråstoffet bedre. Gjennom en kvalitativ tilnærming supplert med tallanalyser fra landingsstatistikken diskuteres mulige forklarings-variabler og løsninger. Våre resultater viser at ivaretakelse av restråstoff forbindes med ... -
Alternative bait trials in the Barents Sea snow crab fishery
(Journal article; Tidsskriftartikkel; Peer reviewed, 2019-05-13)Commercial harvesting of snow crab (<i>Chionoecetes opilio</i>) in the Barents Sea started in 2012 by Norwegian fishing vessels. This new fishery has significant bait requirements, representing an emerging conservation challenge. In this study, we evaluate the performance of five alternative (natural) baits manufactured from the waste stream of existing and sustainably managed harp seal (<i>Pagophilus ... -
Alternative materialer til plast brukt i snurrevadtau og trålmatter
(Research report; Forskningsrapport, 2023-10-30)Dette prosjektet studerte ulike løsninger for å redusere effekten av slitasje fra fossilbasert, ikke-nedbrytbare plastmaterialer som brukes i snurrevad og trålmatter. Prosjektet testet ulike natur-, syntetiske og biologisk nedbrytbare materialer i laboratorium og i felt. Prosjektet kvantifiserte og sannsynliggjorde hvor mye reduksjon i utslipp ulike tiltak og løsninger kan bidra med. Det inkluderes ... -
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 ... -
Analysis of bacterial diversity in the intestine of grass carp (Ctenopharyngodon idellus) based on 16S rDNA gene sequences
(Journal article; Tidsskriftartikkel; Peer reviewed, 2010) -
Analysis of the Atlantic salmon genome reveals a cluster of Mx genes that respond more strongly to IFN gamma than to type I IFN
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-09-06)Mx proteins are antiviral GTPases, which are induced by type I IFN and virus infection. Analysis of the Atlantic salmon genome revealed the presence of 9 Mx genes localized to three chromosomes. A cluster of three Mx genes (SsaMx1 – SsaMx3), which includes previously cloned Mx genes, is present on chromosome (Chr) 12. A cluster of five Mx genes (SsaMx4-SsaMx8) is present on Chr25 while one Mx gene ... -
Anatomical distribution of scavenger endothelial cells in bony fishes (Osteichthyes)
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-11-28)The scavenger endothelial cells (SECs) of vertebrates are an important class of endocytic cells responsible for clearance of foreign and physiological waste macromolecules, partitioning in the immune system, functioning as a cellular powerplant by producing high energy metabolites like lactate and acetate. All animal phyla possess SECs, but the tissue localization of SECs has only been investigated ... -
“And if you gaze long into an abyss, the abyss gazes also into thee ”: four morphs of Arctic charr adapting to a depth gradient in Lake Tinnsjøen
(Journal article; Tidsskriftartikkel; Peer reviewed, 2020-04-24)The origin of species is a central topic in biology. Ecological speciation might be a driver in adaptive radiation, providing a framework for understanding mechanisms, level, and rate of diversification. The Arctic charr <i>Salvelinus alpinus</i> L. is a polymorphic species with huge morphological and life‐history diversity in Holarctic water systems. We studied adaptive radiation of Arctic charr ... -
Anti-Bacterial Effect and Cytotoxicity Assessment of Lipid 430 Isolated from Algibacter sp.
(Journal article; Tidsskriftartikkel; Peer reviewed, 2019-11-05)Two bacterial isolates from the Barents Sea, both belonging to the genus <i>Algibacter</i>, were found to yield extracts with anti-bacterial bioactivity. Mass spectrometry guided dereplication and purification of the active extracts lead to the isolation of the same active principle in both extracts. The structure of the bioactive compound was identified via mass spectrometry and nuclear resonance ... -
Anti-Cancer Potential of Homemade Fresh Garlic Extract Is Related to Increased Endoplasmic Reticulum Stress
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-04-05)The use of garlic and garlic-based extracts has been linked to decreased incidence of cancer in epidemiological studies. Here we examine the molecular and cellular activities of a simple homemade ethanol-based garlic extract (GE). We show that GE inhibits growth of several different cancer cells in vitro, as well as cancer growth in vivo in a syngeneic orthotopic breast cancer model. Multiple myeloma ... -
Anti-infectious and anti-inflammatory effects of peptide fragments sequentially derived from the antimicrobial peptide centrocin 1 isolated from the green sea urchin, Strongylocentrotus droebachiensis
(Journal article; Tidsskriftartikkel; Peer reviewed, 2012)Bacterial resistance against antibiotic treatment has become a major threat to public health. Antimicrobial peptides (AMPs) have emerged as promising alternative agents for treatment of infectious diseases. This study characterizes novel synthetic peptides sequentially derived from the AMP centrocin 1, isolated from the green sea urchin, for their applicability as anti-infective agents.The microbicidal ...
