Results 21 to 30 of about 5,339 (201)

The potential for cleaner fish‐driven evolution in the salmon louse Lepeophtheirus salmonis: Genetic or environmental control of pigmentation?

open access: yesEcology and Evolution, 2021
The parasitic salmon louse represents one of the biggest challenges to environmentally sustainable salmonid aquaculture across the globe. This species also displays a high evolutionary potential, as demonstrated by its rapid development of resistance to ...
Lars Are Hamre   +4 more
doaj   +1 more source

Candidate genes for monitoring hydrogen peroxide resistance in the salmon louse, Lepeophtheirus salmonis

open access: yesParasites & Vectors, 2020
Background Hydrogen peroxide (H2O2) is one of the delousing agents used to control sea lice infestations in salmonid aquaculture. However, some Lepeophtheirus salmonis populations have developed resistance towards H2O2.
Celia Agusti-Ridaura   +6 more
doaj   +1 more source

Sea Lice Are Sensitive to Low Frequency Sounds [PDF]

open access: yesJournal 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. This study shows the first ultrastructural images of pathological changes in the sensory setae of the first antenna and in inner tissues in different stages of L.
Solé Carbonell, Marta   +5 more
openaire   +5 more sources

Planktonic and Parasitic Sea Lice Abundance on Three Commercial Salmon Farms in Norway Throughout a Production Cycle

open access: yesFrontiers in Marine Science, 2021
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 abundance of adult sea lice on the salmon and the ...
Lone S. Jevne   +4 more
doaj   +1 more source

Small, charged proteins in salmon louse (Lepeophtheirus salmonis) secretions modulate Atlantic salmon (Salmo salar) immune responses and coagulation

open access: yesScientific Reports, 2022
Little is known about glandular proteins secreted from the skin- and blood-feeding ectoparasite salmon louse (Lepeophtheirus salmonis). The labial gland has ducts extending into the oral cavity of the lice, and the present study aimed to identify novel ...
Aina-Cathrine Øvergård   +9 more
doaj   +1 more source

Sea lice escape predation on their host [PDF]

open access: yesBiology Letters, 2008
Parasites seldom have predators but often fall victim to those of their hosts. How parasites respond to host predation can have important consequences for both hosts and parasites, though empirical investigations are rare. The exposure of wild juvenile salmon to sea lice (Lepeophtheirus salmonis) from salmon farms allowed us to study a novel ecological
B M, Connors, M, Krkosek, L M, Dill
openaire   +2 more sources

Modeling salmon lice effects on sea trout population dynamics using an individual-based approach

open access: yesAquaculture Environment Interactions, 2021
Salmon lice Lepeophtheirus salmonis infestation of sea trout Salmo trutta results in both additional marine mortality and behavioral changes which may contribute to sea trout population decline.
RD Hedger   +6 more
doaj   +1 more source

Biofouling on Salmon Pen Nets and Cleaner Fish Shelters Does Not Harbor Planktonic Stages of Sea Lice

open access: yesFrontiers in Marine Science, 2020
The objective of the current study was to determine the extent to which planktonic sea lice (Lepeophtheirus salmonis Krøyer, 1838 and Caligus elongatus Nordmann, 1832) were present in the biofouling on open-sea net pens used for commercial rearing of ...
Lone S. Jevne   +7 more
doaj   +1 more source

First report of reduced sensitivity towards hydrogen peroxide found in the salmon louse Lepeophtheirus salmonis in Norway

open access: yesAquaculture Reports, 2015
Reduced sensitivity towards chemotherapeutants in the salmon louse Lepeophtheirus salmonis (Krøyer) is an increasing problem for the fish farming industry.
Kari Olli Helgesen   +3 more
doaj   +1 more source

Caligus rogercresseyi acetylcholinesterase types and variants: a potential marker for organophosphate resistance

open access: yesParasites & Vectors, 2018
Background Control of the sea louse Caligus rogercresseyi in the Chilean salmonid industry is reliant on chemical treatments. Azamethiphos was introduced in 2013, although other organophosphates were previously used.
Celia Agusti-Ridaura   +7 more
doaj   +1 more source

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