Results 11 to 20 of about 1,389 (173)

Pasteurella spp. Infections in Atlantic salmon and lumpsucker

open access: yesJournal of Fish Diseases, 2021
AbstractThe use of cleaner fish as a delousing method in Norwegian salmonid aquaculture has increased tremendously over the last few years. This has led to the emergence of a new large industry of farming lumpsuckers (Cyclopterus lumpus L.).The use of lumpsuckers as cleaner fish has, however, not been problem‐free.
Nina Sandlund   +4 more
openaire   +5 more sources

Diet and trophic structure of fishes in the Barents Sea: between empty and full stomachs - large individual variability follows a common pattern. [PDF]

open access: yesJ Fish Biol
Abstract More than 27,000 stomachs from 70 species of fish were collected from the Barents Sea in 2015. Quantitative stomach content expressed relative to the body weight of the predator fish (g g−1 as %) varied by four to five orders of magnitude for six species with the largest sample size (Atlantic cod Gadus morhua, haddock Melanogrammus aeglefinus,
Skjoldal HR, Eriksen E, Ono K, Dolgov A.
europepmc   +2 more sources

Environmental DNA reveals spatial patterns of fish and plankton diversity at a floating offshore wind farm

open access: yesEnvironmental DNA, Volume 5, Issue 6, Page 1289-1306, November 2023., 2023
Offshore wind farms may have an impact on the pelagic ecosystem. We assessed the use of eDNA samples to quantify change in fish abundance and community structure. Results show that the single species assays and meta barcoding methods used are able to identify structure at adequate spatial scales.
Jon Thomassen Hestetun   +4 more
wiley   +1 more source

Biosecurity: Reducing the burden of disease

open access: yesJournal of the World Aquaculture Society, Volume 54, Issue 2, Page 397-426, April 2023., 2023
Abstract The challenges and problems of managing good biosecurity are wide‐ranging and multifactorial with many compounding factors to pre‐dispose farmed stocks to an increased risk of infection with consequential stock losses. Many challenges are anthropogenic in origin and may be the result of the physical location (site) and/or the poor design of ...
Rohana Subasinghe   +5 more
wiley   +1 more source

Deciphering Eurasian otter (Lutra lutra L.) and seal (Phoca vitulina L.; Halichoerus grypus F.) diet: Metabarcoding tailored for fresh and saltwater fish species

open access: yesMolecular Ecology, Volume 31, Issue 19, Page 5089-5106, October 2022., 2022
Abstract Long‐lived top predators shape biodiversity structure in their ecosystems and predator–prey interactions are critical in decoding how communities function. Studies on the foraging ecology of seals and Eurasian otters in Western Europe are outdated and most studies solely performed traditional hard part analysis.
Joy Ometere Boyi   +6 more
wiley   +1 more source

Interleukin-1 Ligands and Receptors in Lumpfish (Cyclopterus lumpus L.): Molecular Characterization, Phylogeny, Gene Expression, and Transcriptome Analyses

open access: yesFrontiers in Immunology, 2020
The interleukin (IL)-1 family play a fundamental role as immune system modulators. Our previous transcriptome-analyses of leukocytes from lumpfish (Cyclopterus lumpus L.) showed that IL-1β was among the most highly upregulated genes following bacterial ...
Håvard Ø. Eggestøl   +3 more
doaj   +1 more source

Ontogeny of a tessellated surface: Carapace growth of the longhorn cowfish Lactoria cornuta

open access: yesJournal of Anatomy, Volume 241, Issue 3, Page 565-580, September 2022., 2022
Abstract Biological armors derive their mechanical integrity in part from their geometric architectures, often involving tessellations: individual structural elements tiled together to form surface shells. The carapace of boxfish, for example, is composed of mineralized polygonal plates, called scutes, arranged in a complex geometric pattern and nearly
Lennart Eigen   +5 more
wiley   +1 more source

qPCR screening for Yersinia ruckeri clonal complex 1 against a background of putatively avirulent strains in Norwegian aquaculture

open access: yesJournal of Fish Diseases, Volume 45, Issue 8, Page 1211-1224, August 2022., 2022
Abstract Although a number of genetically diverse Yersinia ruckeri strains are present in Norwegian aquaculture environments, most if not all outbreaks of yersiniosis in Atlantic salmon in Norway are associated with a single specific genetic lineage of serotype O1, termed clonal complex 1.
Andreas Riborg   +7 more
wiley   +1 more source

Influence of offshore oil and gas structures on seascape ecological connectivity

open access: yesGlobal Change Biology, Volume 28, Issue 11, Page 3515-3536, June 2022., 2022
Offshore platforms and related fixed structures supporting the oil and gas (O&G) industry are prevalent in all oceans. We review current knowledge on the role of O&G infrastructure in maintaining, altering or enhancing ecological seascape connectivity. There is a paucity of studies assessing connectivity and O&G structures.
Dianne L. McLean   +45 more
wiley   +1 more source

Spatiotemporal Variation in Distribution, Size, and Relative Abundance within a Salish Sea Nearshore Forage Fish Community

open access: yesMarine and Coastal Fisheries, Volume 14, Issue 2, April 2022., 2022
Abstract Forage fish are schooling species commonly occurring in both offshore pelagic and nearshore coastal habitats. Beyond use by some species for spawning, the dynamics of nearshore habitat use are not well understood. The objective of our study was to evaluate the spring–summer dynamics of forage fish occurrence in nearshore habitats of the Strait
Kinsey E. Frick   +6 more
wiley   +1 more source

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