Results 21 to 30 of about 3,472 (198)

Farmed salmonids drive the abundance, ecology and evolution of parasitic salmon lice in Norway

Aquaculture Environment Interactions, 2021
Sea cage fish farming is typically open to the environment, with disease transmission possible between farmed and wild hosts. In salmonid aquaculture, salmon louse Lepeophtheirus salmonis infestations cause production losses, reduce welfare for farmed ...
T Dempster, K Overton, S Bui, LH Stien, F Oppedal, Ø Karlsen, A Coates, BL Phillips, LT Barrett   +8 more
doaj   +1 more source

Delousing performance of ballan wrasse (Labrus bergylta) and lumpfish (Cyclopterus lumpus): seasonal consistency and the challenge of cryptic lice for lumpfish. [PDF]

Pest Manag Sci
Ballan wrasse and lumpfish effectively reduce sea lice on salmon year round, although lumpfish struggle with cryptic lice, highlighting new considerations for lice management. Abstract BACKGROUND Cleaner fish play a crucial role in controlling caligid sea lice in Atlantic salmon aquaculture across the North Atlantic.
Brooker AJ, Davie A, Bassett D, Boyd S, Migaud H.   +4 more
europepmc   +2 more sources

Phenylalanine Hydroxylase RNAi Knockdown Negatively Affects Larval Development, Molting and Swimming Performance of Salmon Lice

Frontiers in Marine Science, 2020
Phenylalanine hydroxylase (PAH) is a crucial enzyme involved in tyrosine biosynthesis, having roles in neurological and physiological processes. The purpose of PAH has received little attention in crustaceans despite extensive investigations in other ...
Prashanna Guragain, Prashanna Guragain, Bjørnar Sporsheim, Astrid Skjesol, Anna Solvang Båtnes, Yngvar Olsen, Atle M. Bones, Atle M. Bones, Per Winge, Per Winge   +9 more
doaj   +1 more source

Reduced Infestation Levels of Lepeophtheirus salmonis in Atlantic Salmon (Salmo salar) following Immersion Exposure to Probiotic Aliivibrio spp.

Applied Microbiology, 2023
Salmon lice (Lepeophtheirus salmonis) constitute a major challenge during the production of farmed Atlantic salmon in Norway. Preventive measures are considered to have a higher impact on sustainable control than lice treatment.
Marius Steen Dobloug, Camilla Skagen-Sandvik, Øystein Evensen, Koestan Gadan, Marit Jørgensen Bakke, Henning Sørum, Kira Salonius   +6 more
doaj   +1 more source

Scientists' Warning on the Rapid Evolution of Parasites in the Anthropocene. [PDF]

Evol Appl
ABSTRACT Human activities are changing the natural world at an accelerating pace, and as a consequence exerting novel and often strong selection pressures on living organisms. For species with traits conferring huge inherent evolutionary potential, like parasites, the outcome may be rapid adaptive responses spanning multiple phenotypic traits. The rise
Poulin R, Bennett J, Blasco-Costa I, Dutra DA, Doherty JF, Dowle E, Filion A, Fredensborg BL, Hasegawa R, Herrmann KK, Keeney DB, Koehler AV, Koprivnikar J, Lagrue C, Lane HS, Leung TLF, Li CH, MacLeod CD, Mouritsen KN, Niebuhr CN, O'Dwyer K, Park E, Paterson RA, Presswell B, Randhawa HS, Ruehle B, Sabadel A, Salloum PM, Thieltges DW, Thomas F, Selbach C.   +30 more
europepmc   +2 more sources

Cleaner Fish Do Not Impact the Pigmentation of Salmon Lice (Lepeophtheirus salmonis) in Commercial Aquaculture Cages

Fishes, 2023
Salmon lice are one of the biggest challenges to sustainable salmonid aquaculture. The species display high evolutionary potential, which is evident by its development of resistance to numerous chemical compounds used for delousing.
Albert Kjartan Dagbjartarson Imsland, Jon Petter Berg, Velimir Nola, Lena Geitung, Tina Oldham   +4 more
doaj   +1 more source

QTL mapping provides new insights into emamectin benzoate resistance in salmon lice, Lepeophtheirus salmonis. [PDF]

BMC Genomics
Background The salmon louse (Lepeophtheirus salmonis) is a parasite of wild and farmed salmonid fish, causing huge economic damage to the commercial farming of Atlantic salmon (Salmo salar) in the northern hemisphere.
Sturm A, Carmona-Antoñanzas G, Humble JL, Croton C, Boyd S, Mphuti R, Taggart JB, Bassett DI, Houston RD, Gharbi K, Bron JE, Bekaert M.   +11 more
europepmc   +2 more sources

Organophosphate Poisoning of Atlantic Salmon in Connection with Treatment against Salmon Lice [PDF]

Acta Veterinaria Scandinavica, 1989
Three incidents with high mortality in Atlantic salmon after trichlorfon treatment against salmon lice are described. All 3 incidents occurred at water temperatures of 12 degrees C or higher. The mean brain acetylcholinesterase (AChE) activity of dead fish was less than 20% of normal activity, while survivors showed mean activities of 22-61% of normal ...
T E, Horsberg, T, Høy, I, Nafstad
openaire   +2 more sources

A statistical mechanistic approach including temperature and salinity effects to improve salmon lice modelling of infestation pressure

Aquaculture Environment Interactions, 2021
Salmon lice Lepeophtheirus salmonis pose a major threat to the sustainable development of salmonid farming. To investigate effects of farm-origin salmon lice on wild salmonids, salmon lice dynamics are typically simulated using models that depend on ...
LC Stige, KO Helgesen, H Viljugrein, L Qviller   +3 more
doaj   +1 more source

Epidemiology of Salmonid Rickettsial Septicemia (SRS) in Farmed Salmon: The Role of Sea Lice Infestations in Mortality Risk. [PDF]

J Fish Dis
ABSTRACT Piscirickettsia salmonis, the causal agent of salmonid rickettsial septicemia (SRS), is the main pathogen affecting farmed salmonids in Chile. Outbreaks of SRS lead to substantial economic losses for producers. Many determinants related to SRS outcomes are still poorly understood.
Diethelm-Varela B, Atero N, Córdova-Bührle F, Rezende EL, Gelcich S, Sandoval O, Navarro C, Mardones FO.   +7 more
europepmc   +2 more sources