Results 21 to 30 of about 1,064 (166)

Microbial communities associated with the parasitic copepod Lepeophtheirus salmonis [PDF]

Marine Genomics, 2020
Abstract Lepeophtheirus salmonis is a naturally occurring marine parasite of salmonid fishes in the Northern hemisphere, and a major problem in salmonid aquaculture. In addition to the direct effects on host fish, L. salmonis may act as a vector for diseases. Here, the microbial community of L.
Dalvin, Sussie, Skaftnesmo, Kai Ove, Malde, Ketil, Glover, Kevin, Leong, Jong S, Koop, Ben F., Edvardsen, Rolf Brudvik, Sandlund, Nina   +7 more
openaire   +2 more sources

The salmon louse genome may be much larger than sequencing suggests

Scientific Reports, 2022
The genome size of organisms impacts their evolution and biology and is often assumed to be characteristic of a species. Here we present the first published estimates of genome size of the ecologically and economically important ectoparasite ...
Grace A. Wyngaard, Rasmus Skern-Mauritzen, Ketil Malde, Rachel Prendergast, Stefano Peruzzi   +4 more
doaj   +1 more source

In lumpfish We Trust? The Efficacy of Lumpfish Cyclopterus lumpus to Control Lepeophtheirus salmonis Infestations on Farmed Atlantic Salmon: A Review

Fishes, 2022
In this review, we have systematized current knowledge about the effect of stocking lumpfish (Cyclopterus lumpus) as cleaner fish to control Lepeophtheirus salmonis infestations on farmed Atlantic salmon (Salmo salar L.).
Albert Kjartan Dagbjartarson Imsland, Patrick Reynolds   +1 more
doaj   +1 more source

Sea Lice Are Sensitive to Low Frequency Sounds

Journal of Marine Science and Engineering, 2021
The salmon louse Lepeophtheirus salmonis is a major disease problem in salmonids farming and there are indications that it also plays a role in the decline of wild salmon stocks.
Marta Solé, Marc Lenoir, José-Manuel Fortuño, Steffen De Vreese, Mike van der Schaar, Michel André   +5 more
doaj   +1 more source

Pacific and Atlantic Lepeophtheirus salmonis (Krøyer, 1838) are allopatric subspecies: Lepeophtheirus salmonis salmonis and L. salmonis oncorhynchi subspecies novo [PDF]

BMC Genetics, 2014
The salmon louse Lepeophtheirus salmonis is a parasitic copepod that infects salmonids in the Pacific and Atlantic oceans. Although considered as a single species, morphological and biological differences have been reported between lice from the two oceans.
Skern-Mauritzen, Rasmus, Torrissen, Ole, Glover, Kevin   +2 more
openaire   +5 more sources

Identification and Molecular Characterization of Two Acetylcholinesterases from the Salmon Louse, Lepeophtheirus salmonis. [PDF]

PLoS ONE, 2015
Acetylcholinesterase (AChE) is an important enzyme in cholinergic synapses. Most arthropods have two genes (ace1 and ace2), but only one encodes the predominant synaptic AChE, the main target for organophosphates.
Kiranpreet Kaur, Marit Jørgensen Bakke, Frank Nilsen, Tor Einar Horsberg   +3 more
doaj   +1 more source

Chemoreception in the salmon louse Lepeophtheirus salmonis: an electrophysiology approach [PDF]

Diseases of Aquatic Organisms, 2007
The search for effective and long-term solutions to the problems caused by salmon lice Lepeophtheirus salmonis (Krøyer, 1837) has increasingly included biological/ecological mechanisms to combat infestation. One aspect of this work focuses on the host-associated stimuli that parasites use to locate and discriminate a compatible host.
Fields, David M., Weissburg, Marc J., Browman, H. I.   +2 more
openaire   +4 more sources

Mechanism behind Resistance against the Organophosphate Azamethiphos in Salmon Lice (Lepeophtheirus salmonis). [PDF]

PLoS ONE, 2015
Acetylcholinesterase (AChE) is the primary target for organophosphates (OP). Several mutations have been reported in AChE to be associated with the reduced sensitivity against OP in various arthropods.
Kiranpreet Kaur, Kari Olli Helgesen, Marit Jørgensen Bakke, Tor Einar Horsberg   +3 more
doaj   +1 more source

Frontal Filament Morphogenesis in the Salmon Louse Lepeophtheirus salmonis [PDF]

The Journal of Parasitology, 2001
The objective of the present study was to understand how and when the frontal filament (FF) in the salmon louse Lepeophtheirus salmonis is produced by examining the sequence of morphological changes leading to FF production in the copepodid and early chalimus stages. Atlantic salmon (Salmo salar) were heavily infested with newly molted copepodids.
P, Gonzalez-Alanis, G M, Wright, S C, Johnson, J F, Burka   +3 more
openaire   +2 more sources

Abundance and distribution of planktonic Lepeophtheirus salmonis and Caligus elongatus in a fish farming region in the Faroe Islands

Aquaculture Environment Interactions, 2015
The abundance of planktonic sea lice in the surface waters of the strait of Sundalagið, Faroe Islands was investigated from November 2013 to June 2014. The strait is 38 km long and hosts 6 salmon farms with coordinated farming cycles.
G á Norði, K Simonsen, E Danielsen, K Eliasen, A Mols-Mortensen, DH Christiansen, P Steingrund, M Galbraith, Ø Patursson   +8 more
doaj   +1 more source