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Quantifying the light sensitivity of Calanus spp. during the polar night: potential for orchestrated migrations conducted by ambient light from the sun, moon, or aurora borealis?
TLDR
The high sensitivity to blue and green light may explain the Calanus’ ability to perform diel vertical migration during the polar night when intensity and diurnal variation of ambient irradiance is low.
Bioluminescence in the high Arctic during the polar night
TLDR
Examination of the composition and activity of the planktonic community during the polar night in the high Arctic Kongsfjord, Svalbard provides evidence for a diel vertical migration of bioluminescent zooplankton that does not correspond to any externally detectable changes in illumination.
Variability in Calanus spp. abundance on fine- to mesoscales in an Arctic fjord: implications for little auk feeding
TLDR
Large Calanus abundance differences within the sampling grid underline the necessity of a proper choice of grid size, in this case 2 km between stations.
Inferences of genetic architecture of bill morphology in house sparrow using a high‐density SNP array point to a polygenic basis
TLDR
A custom 200K SNP array is developed and used to examine the genetic basis of bill morphology in 1857 house sparrow individuals from a large‐scale, island metapopulation off the coast of Northern Norway and finds high genomic heritabilities for bill depth and length, which were comparable with previous pedigree estimates.
Biofouling on Salmon Pen Nets and Cleaner Fish Shelters Does Not Harbor Planktonic Stages of Sea Lice
TLDR
The results of the study suggested that the presence of biofouling has no influence on the average density and proportion of samples with planktonic stages of sea lice and that planktonIC sea lICE do not inhabit biofOUling.
Planktonic and Parasitic Sea Lice Abundance on Three Commercial Salmon Farms in Norway Throughout a Production Cycle
The present article reports the densities of planktonic sea lice (Lepeophtheirus salmonis and Caligus elongatus) in three Atlantic salmon (Salmo salar) localities, and the relationship between the
Principles and Methods of Counteracting Harmful Salmon–Arthropod Interactions in Salmon Farming: Addressing Possibilities, Limitations, and Future Options
TLDR
An overview of the methods and principles of salmon lice management are provided and the potential of emerging strategies and enabling technologies, like genome editing, RNA interference, and machine learning, in arthropod management in aquaculture are highlighted.
Phenylalanine Hydroxylase RNAi Knockdown Negatively Affects Larval Development, Molting and Swimming Performance of Salmon Lice
TLDR
Insight is provided into the role of PAH in copepods and the importance of this metabolic gene in salmon louse growth and development is demonstrated.
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