Artikler, rapporter og annet (Norges fiskerihøgskole): Nye registreringer
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Genomic characterization of three marine fungi, including Emericellopsis atlantica sp. nov. with signatures of a generalist lifestyle and marine biomass degradation
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-08-09)Marine fungi remain poorly covered in global genome sequencing campaigns; the 1000 fungal genomes (1KFG) project attempts to shed light on the diversity, ecology and potential industrial use of overlooked and poorly resolved fungal taxa. This study characterizes the genomes of three marine fungi: <i>Emericellopsis</i> sp. TS7, wood-associated <i>Amylocarpus encephaloides</i> and algae-associated ... -
Improving Fungal Cultivability for Natural Products Discovery
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-09-16)The pool of fungal secondary metabolites can be extended by activating silent gene clusters of cultured strains or by using sensitive biological assays that detect metabolites missed by analytical methods. Alternatively, or in parallel with the first approach, one can increase the diversity of existing culture collections to improve the access to new natural products. This review focuses on the ... -
Two Novel Lyso-Ornithine Lipids Isolated from an Arctic Marine Lacinutrix sp. Bacterium
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-08-31)The Lacinutrix genus was discovered in 2005 and includes 12 Gram-negative bacterial species. To the best of our knowledge, the secondary metabolite production potential of this genus has not been explored before, and examination of Lacinutrix species may reveal novel chemistry. As part of a screening project of Arctic marine bacteria, the Lacinutrix sp. strain M09B143 was cultivated, extracted, ... -
Ultrafiltration of Saithe (Pollachius virens) Protein Hydrolysates and Its Effect on Antioxidative Activity
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-08-30)The whitefish industry generates a huge amount of rest raw material, which is currently wasted or underutilized in the production of low-value products such as animal feed. While fish muscle is the primary product of use for human consumption, rest raw material has great potential as a source of protein and bioactive peptides for the production of food ingredients and nutraceuticals. Enzymatic ... -
Blue Bioeconomy in the Arctic region
(Research report; Forskningsrapport, 2021)The blue bioeconomy is important to many Arctic communities, providing food and other valuable bioresources, generating value and employment, and supporting rural regions. This report looks at the Arctic blue bioeconomy by analyzing regional challenges, opportunities, best practices and success stories from Iceland, Norway and Northern Canada. In addition, information on the status of the blue ... -
Kunnskapsgrunnlag for mulig påvirkning fra oppdrettstorsk og levendelagret torsk på villtorsk
(Research report; Forskningsrapport, 2021-05-26)Det er igjen økende interesse for torskeoppdrett, denne gang med en domestisert oppdrettstorsk som vil ha egenskaper som skiller seg fra vill torsk. Det er behov for et oppdatert kunnskapsgrunnlag om risiko for påvirkning på viltlevende torsk, spesielt genetiske og økologiske interaksjoner og lokalisering i forhold til gyte- og oppvekstområder. Denne rapporten som er bestilt av Fiskeridirektoratet ... -
Should traceability systems in the food industry be based on blockchain technology?
(Conference object; Konferansebidrag, 2021-02-18) -
Effects of six codend meshes on the size selection of juvenile white croaker (Pennahia argentata) in demersal trawl fishery of the South China Sea
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-07-16)White croaker (Pennahia argentata) is a commercially important but overexploited species that is often caught in trawl fishery of the South China Sea (SCS). The codend size selectivity for this species in the local commercial trawl fishery is of concern when considering the established minimum landing size (MLS). This study investigated the size selectivity of white croaker for six different ... -
Salmon farming in the North – Regulating societal and environmental impacts
(Research report; Forskningsrapport, 2020-12-31)Salmon farming is a rapidly growing industry in the North and its sustainable development depends on adequate governance. We have assessed the governance systems for salmon farming in four northern countries, Canada, the Faroe Islands, Iceland, and Norway. In all the countries, the industry is marked by controversies, linked to the environmental and societal impacts of its activities. The question ... -
Salmon farming in the North: How do we regulate growth?
(Journal article; Tidsskriftartikkel, 2021)Aquaculture has become a major part of global food production, and according to the UN Food and Agriculture Organization, it is now the fastest growing animal food-producing industry. In the North, further growth in salmon farming is expected. What mechanisms are in place to regulate this growth? -
Measuring capacity utilization in fisheries using physical or economic variables: A data envelope analysis of a Vietnamese purse seine fishery
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-07-26)Data Envelopment Analysis (DEA) studies of fisheries usually apply output oriented capacity utilization based on physical measures. Although physical measures capture important input factors employed in fishing activities (such as boat size, engine power), economic measures directly reflect the cost of inputs employed. This case study investigates whether economic measures are vital or whether ... -
Wild and Farmed Arctic Charr as a Tourism Product in an Era of Climate Change
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-08-12)The topic investigated is the social-ecological system of Arctic charr (Salvelinus alpinus) fishing and aquaculture as a tourism product in an era of climate change. Arctic charr is a resilient salmonid species that was traditionally an important part of the sustenance economy in Arctic and Subarctic communities as a source of fresh food throughout the year. Arctic charr populations have declined ... -
Valuing the ecosystem service benefits from kelp forest restoration: A choice experiment from Norway
(Journal article; Tidsskriftartikkel; Peer reviewed, 2020-09-08)Habitat loss and degradation are recognised as the most important causes of species decline and extinction in marine ecosystems. It is also widely recognised that a range of restoration actions are now essential to halt further decline. From a policy perspective, demonstration that restoration activity is in the interest of society is an important goal. In this paper, the welfare impacts of restoring ... -
Humpback Whale (Megaptera novaeangliae) Song on a Subarctic Feeding Ground
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-05-24)Male humpback whales (Megaptera novaeangliae) are known to produce long complex sequences of structured vocalizations called song. Singing behavior has traditionally been associated with low latitude breeding grounds but is increasingly reported outside these areas. This study provides the first report of humpback whale songs in the subarctic waters of Northern Norway using a long-term bottom-moored ... -
Bycatch reduction in the deep-water shrimp (Pandalus borealis) trawl fishery with a large mesh top panel
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-04-08)In the Northeast Atlantic deep-water shrimp (Pandalus borealis) trawl fishery, the bycatch of juvenile fish and shrimp represents a problem. This study evaluated if inserting a 200 mm mesh size top-panel in the last three sections of the tapered upper belly section of the trawl could reduce bycatch of juveniles while maintaining the catch efficiency for deep-water shrimp. The bycatch species ... -
Dredge selectivity in a Mediterranean striped venus clam (Chamelea gallina) fishery
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-02-15)The striped venus clam Chamelea gallina is the target of a large fleet of hydraulic dredgers, which represent an important fishing sector in terms of income and landings in the Mediterranean Sea. Although there is information on the catch rates, impact and discards related to this fishery, the size selection process carried out by the dredge during trawl under commercial conditions is practically ... -
Increased functional diversity warns of ecological transition in the Arctic
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-04-07)As temperatures rise, motile species start to redistribute to more suitable areas, potentially affecting the persistence of several resident species and altering biodiversity and ecosystem functions. In the Barents Sea, a hotspot for global warming, marine fish from boreal regions have been increasingly found in the more exclusive Arctic region. Here, we show that this shift in species distribution ... -
Distinct genetic clustering in the weakly differentiated polar cod, Boreogadus saida Lepechin, 1774 from East Siberian Sea to Svalbard
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-07-03)The cold-adapted polar cod Boreogadus saida, a key species in Arctic ecosystems, is vulnerable to global warming and ice retreat. In this study, 1257 individuals sampled in 17 locations within the latitudinal range of 75–81°N from Svalbard to East Siberian Sea were genotyped with a dedicated suite of 116 single-nucleotide polymorphic loci (SNP). The overall pattern of isolation by distance (IBD) ... -
Inclusion of photoautotrophic cultivated diatom biomass in salmon feed can deter lice
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-07-29)The aim of this study was to evaluate the potential of diatom (microalgae) biomass as a lice-reducing ingredient in salmon feed. The original hypothesis was based on the fact that polyunsaturated aldehydes (PUAs), e.g. 2-trans, 4-trans decadenial (A3) produced by diatoms can function as grazing deterrents and harm copepod development. Salmon lice (Lepeophtheirus salmonis) is a copepod, and we intended ... -
A netting-based alternative to rigid sorting grids in the small-meshed Norway pout (Trisopterus esmarkii) trawl fishery
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-01-28)A new bycatch reduction device, termed “Excluder”, is presented as an alternative to a traditional rigid sorting grid, mandatory in the small-meshed Norway Pout (<i>Trisopterus esmarkii</i>) trawl fishery in the North Sea. The fishery is a high-volume fishery with large vessels, large demersal trawls and catches up to 100 tons per haul of this small forage fish. The Excluder is a 30 m long netting-based ...