Browsing Articles by Title
Now showing items 2498-2517 of 3009
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Size selectivity and catch efficiency of bottom trawl with a double sorting grid and diamond mesh codend in the North-east Atlantic gadoid fishery
(Peer reviewed; Journal article, 2020)This study investigated the size selectivity and catch efficiency in the North-east Atlantic demersal trawl fishery targeting cod (Gadus morhua) and haddock (Melanogrammus aeglefinus). The use of a sorting grid followed ... -
Size-dependent escape risk of lumpfish (Cyclopterus lumpus) from salmonid farm nets
(Peer reviewed; Journal article, 2020)In the last decade, the salmon aquaculture industry has considerably increased the use of lumpfish juveniles as cleaner fish. Potential escape of reared lumpfish into the wild may spread diseases or genetically contaminate ... -
Size-fractioned zooplankton biomass in the Barents Sea: Spatial patterns and temporal variations during three decades of warming and strong fluctuations of the capelin stock (1989–2020)
(Peer reviewed; Journal article, 2022)Zooplankton biomass has been monitored on joint Norwegian-Russian surveys in late summer and autumn since the 1980s. We report here on zooplankton biomass in three size fractions (<1, 1–2, and > 2 mm in screen mesh opening) ... -
Size-selective harvesting affects the immunocompetence of guppies exposed to the parasite Gyrodactylus
(Peer reviewed; Journal article, 2022)Harvesting is typically size-selective, targeting large individuals. This is expected to lead to reduced average body size and earlier maturation (i.e. faster life histories). Such changes can also affect traits seemingly ... -
Size-selective harvesting alters biological traits of marine medaka (Oryzias melastigma)
(Peer reviewed; Journal article, 2023)Under long-term fishing pressure, the biological traits of many wild fish populations have changed. Such phenotypic changes include smaller in size and earlier age-at-maturation, strongly suggesting that fishing could ... -
Skeletal deformities in wild and farmed cleaner fish species used in Atlantic salmon Salmo salar aquaculture
(Peer reviewed; Journal article, 2020)As a first attempt to assess bone health in cleaner fish production, wild and cultured ballan wrasse Labrus bergylta and lumpfish Cyclopterus lumpus were examined by radiology. In C. lumpus, wild fish (57%) had more vertebra ... -
Skilful prediction of cod stocks in the North and Barents Sea a decade in advance
(Peer reviewed; Journal article, 2021)Reliable information about the future state of the ocean and fish stocks is necessary for informed decision-making by fisheries scientists, managers and the industry. However, decadal regional ocean climate and fish stock ... -
Skillful prediction of Barents Sea ice cover
(Journal article; Peer reviewed, 2015-07-08)A main concern of present climate change is the Arctic sea ice cover. In wintertime, its observed variability is largely carried by the Barents Sea. Here we propose and evaluate a simple quantitative and prognostic framework ... -
Skin mucus of gilthead sea bream (sparus aurata l.). protein mapping and regulation in chronically stressed fish
(Peer reviewed; Journal article, 2017) -
Skipped spawning in Northeast Arctic haddock Melanogrammus aeglefinus
(Journal article; Peer reviewed, 2015-04-22) -
Skreiinnsiget 1969
(Journal article, 1969)Denne artikkelen gir en oversikt over fordelingen av skrei i Lofoten gjennom sesongen 1969, basert på ekkoloddobservasjoner fra tre fartøyer. M/S «Havdron» krysset langs yttersiden av Lofoten og Vesterålen to ganger: 14.-16. ... -
Slik holdes torskefisket lønnsomt
(Journal article, 1994) -
Small-Scale Comparative Genomic Analysis of Listeria monocytogenes Isolated from Environments of Salmon Processing Plants and Human Cases in Norway
(Journal article, 2021)Listeria monocytogenes is a food-borne bacterium that give rise to the potentially life-threatening disease listeriosis. Listeriosis has been mandatorily notifiable in Norway since 1991. All clinical L. monocytogenes ... -
Small-scale genetic structure in a marine population in relation to water circulation and egg characteristics
(Journal article; Peer reviewed, 2010-10)Until the last decade it was assumed that most marine species have pronounced gene flow over vast areas, largely because of their potential for dispersal during early life stages. However, recent genetic, modeling, and ... -
Small-scale on-site treatment of fecal matter: comparison of treatments for resource recovery and sanitization
(Peer reviewed; Journal article, 2021)On-site small-scale sanitation is common in rural areas and areas without infrastructure, but the treatment of the collected fecal matter can be inefficient and is seldom directed to resource recovery. The aim of this study ... -
Snorkel sea-cage technology decreases salmon louse infestation by 75% in a full-cycle commercial test
(Journal article; Peer reviewed, 2019)Methods to prevent parasite infestations in farmed fish are becoming widespread, yet tests of their effectiveness often lack commercial relevance and statistical power, which may lead to technology misuse. Here, we examined ... -
'Snorkel' sea lice barrier technology reduces sea lice loads on harvest-sized Atlantic salmon with minimal welfare impacts
(Journal article; Peer reviewed, 2016-02-13)The infestation of farmed Atlantic salmon (Salmo salar) by ectoparasitic sea lice (Lepeophtheirus salmonis) presents a need for new approaches to parasite control. One option is the use of ‘snorkel’ sea lice barrier ... -
Snow crab (Chionoecetes opilio), a new food item for North-east Arctic cod (Gadus morhua) in the Barents Sea
(Peer reviewed; Journal article, 2021)The snow crab (Chionoecetes opilio) is a newly established species in the Barents Sea, increasing in both distribution and abundance in recent years. We explore the potential importance of North-east Arctic cod (Gadus ... -
Social-ecological timelines to explore human adaptation to coastal change
(Journal article; Peer reviewed, 2018)Through the construction of a socio-ecological timeline for the Porsanger fjord ecosystem, this article illustrates the different ways in which environmental and social–ecological changes have influenced the adaptations ... -
Soft bottom benthos and responses to climate variation and eutrophication in Skagerrak
(Journal article; Peer reviewed, 2018)Skagerrak has been subject to several anthropogenic influences over the past decades, with climate change and eutrophication being considered as the most serious and large-scale disturbance factors. The present study reports ...