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norskBlar i tittel Artikler, rapporter og annet (Norges fiskerihøgskole)
Viser treff 66-85 av 928
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B-1 plasma cells require non-cognate CD4 T cell help to generate a unique repertoire of natural IgM
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023)Evolutionarily conserved, “natural” (n)IgM is broadly reactive to both self and foreign antigens. Its selective deficiency leads to increases in autoimmune diseases and infections. In mice, nIgM is secreted independent of microbial exposure to bone marrow (BM) and spleen B-1 cell–derived plasma cells (B-1PC), generating the majority of nIgM, or by B-1 cells that remain non-terminally differentiated ... -
The Backward-Bending Supply Curve in Fisheries-Revisited
(Journal article; Tidsskriftartikkel; Peer reviewed, 2013)This study discusses and estimates the backward-bending supply curve, using data for three years over a six-year time span from the inshore purse seine fishery in Khanh Hoa province, Vietnam. Four different models are developed for estimation based on fisheries data, in the absence of stock survey data. The estimated maximum sustainable yield for the anchovy in south-central Vietnam ranges from ... -
Bacterial Diversity in the Digestive Tracts of Four Indian Air-Breathing Fish Species Investigated by PCR Based Denaturing Gradient Gel Electrophoresis
(Journal article; Tidsskriftartikkel; Peer reviewed, 2016-12-02)An investigation was conducted to identify the allochthonous microbiota (entire intestine) and the autochthonous microbiota in proximal intestine (PI) and distal intestine (DI) of four species of Indian air-breathing fish (climbing perch; Anabas testudineus, murrel; Channa punctatus, walking catfish; Clarias batrachus and stinging catfish; Heteropneustes fossilis) by PCR based denaturing gradient ... -
Bacterial Natural Product Drug Discovery for New Antibiotics: Strategies for Tackling the Problem of Antibiotic Resistance by Efficient Bioprospecting
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-07-10)The problem of antibiotic resistance has become a challenge for our public health and society; it has allowed infectious diseases to re-emerge as a risk to human health. New antibiotics that are introduced to the market face the rise of resistant pathogens after a certain period of use. The relatively fast development of resistance against some antibiotics seems to be closely linked to their microbial ... -
Bakteriell gjellebetennelse hos rognkjeks (Cyclopterus lumpus)
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021)Veterinærinstituttet mottok i januar i år en innsendelse fra et settefiskanlegg for rognkjeks. Rognkjeksen var 10-13 gram og uvaksinert. Settefiskanlegget er et gjennomstrømningsanlegg med sjøvann. Det var mistanke om gjelleproblematikk da det ble rapportert om døde individer med utspilte gjellelokk og bleke gjeller. Ved Veterinærinstituttet ble det gjennomført histopatologiske og immunhistokjemiske ... -
Bakterievekst under naturtørking av tørrfisk: Sammenligning av normal- og mucosovev
(Research report; Forskningsrapport, 2008-04)Mikroorganismer antas å påvirke utviklingen av lukt og smak i tørrfisk, men det er lite er kjent om hvilke organismer som dominerer under tørkeprosessen. Samtidig er mikrobielle forhold er også antatt å være essensielle for utviklingen av mucoso, som er en kvalitetsfeil i tørrfisk der deler av fiskemuskelen blir oppløst og slimaktig. Slike partier må skjæres bort under bløtingsprosessen. Denne ... -
Balancing conservation goals and ecotourism development in coastal wetland management in Sri Lanka: A choice experiment
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-05-15)Understanding the tradeoff between tourism development and environmental conservation is essential for the sustainable management of ecotourism. Accordingly, we conducted a choice experiment (CE) using valuation workshops to estimate the preferences of foreign tourists for ecotourism development and biodiversity conservation in Rekawa coastal wetland in Southern Sri Lanka. Transforming preferences ... -
Bat echolocation plasticity in allopatry: a call for caution in acoustic identification of Pipistrellus sp.
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-03-23)Animals modify their behaviours and interactions in response to changing environments. In bats, environmental adaptations are reflected in echolocation signalling that is used for navigation, foraging and communication. However, the extent and drivers of echolocation plasticity are not fully understood, hindering our identification of bat species with ultrasonic detectors, particularly for cryptic ... -
Bats as natural samplers: First record of the invasive pest rice water weevil Lissorhoptrus oryzophilus in the Iberian Peninsula
(Journal article; Tidsskriftartikkel; Peer reviewed, 2020-10-19)We face an increasing global food security challenge as the human population continues to grow across the globe. As agricultural production rises to keep up with food demand, so too does the expansion of crop detrimental pest species. Early detection can be crucial to control their damage and relies on the use of accurate and dependable techniques. We report the first record of rice water weevil ... -
Bats as potential suppressors of multiple agricultural pests: A case study from Madagascar
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-10-01)The conversion of natural habitats to agriculture is one of the main drivers of biotic change. Madagascar is no exception and land-use change, mostly driven by slash-and-burn agriculture, is impacting the island's exceptional biodiversity. Although most species are negatively affected by agricultural expansion, some, such as synanthropic bats, are capable of exploring newly available resources and ... -
Before Virtuous Practice. Public and Private Sector-Specific Preferences for Intuition and Deliberation in Decision-Making
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-07-26)Fast and intuitive thinking, as well as emotions, play a large role in decision-making. The sociology of wise practice within public administration also suggests that thinking preferences like the use of intuition form a cornerstone of public administrators’ virtuous practice. This contribution uses conceptual and theoretical resources from behavioral sciences and public administration to find out ... -
Behov for Statfisk?
(Chronicle; Kronikk, 2016-09-15) -
Beneficial roles of nutrients as immunostimulants in aquaculture: A review
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-03-21)Protein deficiency is a major difficulty for human needs in the past few decades, while different types of aquatic species are rich in high quality protein. Therefore, aquaculture is considered as the main developing food production sector globally. Bacterial infections are the main problem for aquaculture, and their outbreaks have a great impact on productivity, and previously indiscriminate use ... -
Benthic Biodiversity, Carbon Storage and the Potential for Increasing Negative Feedbacks on Climate Change in Shallow Waters of the Antarctic Peninsula
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-02-17)The importance of cold-water blue carbon as biological carbon pumps that sequester carbon into ocean sediments is now being realised. Most polar blue carbon research to date has focussed on deep water, yet the highest productivity is in the shallows. This study measured the functional biodiversity and carbon standing stock accumulated by shallow-water (<25 m) benthic assemblages on both hard and ... -
Benthic transition zones in the Atlantic gateway to a changing Arctic ocean
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-04-06)The biogeographic transition from boreal to Arctic marine communities entails a strong taxonomic and functional turnover. Communities living in these areas are being strongly affected by climate warming with rapid reorganizations and change in ecosystem functioning. We assess the megabenthic species composition and functional character in a transition zone around Svalbard. The relationships between ... -
Betydning av tidspunkt og lengde av vintersignal i RAS for prestasjon i sjø ved utsett av stor smolt
(Research report; Forskningsrapport, 2023-12-01)Under kontrollerte forhold i kar var det en positiv effekt av et vintersignal kombinert med brakkvann i RAS på vekst etter overføring til sjøvann. Men et vintersignal ga også økt kjønnsmodning i hannfisk når fisken gikk lenge i RAS på kontinuerlig lys etter at vintersignalet var avsluttet. Kjønnsmodning ble redusert når fisken ble satt ut på lav sjøtemperatur. Resultatene fra utsett i sjømerder viste ... -
Beyond regulatory compliance – Seafood traceability benefits and success cases
(Research report; Forskningsrapport, 2020)Since the mid-1990s, traceability has become a popular concept in industrial logistics, regardless of the production regime and type of product. Implementing traceability systems across the food supply chain is seen as crucial for increasing food quality and safety, for optimizing production or for documenting sustainability. However, implementation of traceability systems in the seafood sector seems ... -
Bioactivity of a Marine Diatom (Porosira glacialis [Grunow] Jorgensen 1905) Cultivated With and Without Factory Smoke CO2
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-02-16)Using industrial emissions as a strategy for CO<sub>2</sub> sequestration through carbon capture and utilization (CCU) in cultivation of microalgae can potentially change cultivation factors such as pH, nutrient availability and presence of trace metals, which could alter the growth and metabolism of the microalgae. It is therefore important to investigate whether such changes in culturing conditions ... -
Bioactivity of Serratiochelin A, a Siderophore Isolated from a Co-Culture of Serratia sp. and Shewanella sp.
(Journal article; Tidsskriftartikkel; Peer reviewed, 2020-07-14)Siderophores are compounds with high affinity for ferric iron. Bacteria produce these compounds to acquire iron in iron-limiting conditions. Iron is one of the most abundant metals on earth, and its presence is necessary for many vital life processes. Bacteria from the genus <i>Serratia</i> contribute to the iron respiration in their environments, and previously several siderophores have been isolated ... -
Bioactivity Screening of Microalgae for Antioxidant, Anti-Inflammatory, Anticancer, Anti-Diabetes, and Antibacterial Activities
(Journal article; Tidsskriftartikkel; Peer reviewed, 2016-05-10)Marine microalgae are considered a potentially new and valuable source of biologically active molecules for applications in the food industry as well as in the pharmaceutical, nutraceutical, and cosmetic sectors. They can be easily cultured, have short generation times and enable an environmentally-friendly approach to drug discovery by overcoming problems associated with the over-utilization ...
