Results 21 to 30 of about 63,953 (213)

Making the best of lousy circumstances: the impact of salmon louse Lepeophtheirus salmonis on depth preference of sea trout Salmo trutta

open access: yesAquaculture Environment Interactions, 2020
Sea trout are known for seeking out sources of freshwater to rid themselves of salmon lice. However, the effect of natural haloclines in fjords on parasite dynamics is not well understood.
AM Mohn, KW Vollset, E Karlsbakk
doaj   +1 more source

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

Allee Effects May Slow the Spread of Parasites in a Coastal Marine Ecosystem [PDF]

open access: yes, 2011
Allee effects are thought to mediate the dynamics of population colonization, particularly for invasive species. However, Allee effects acting on parasites have rarely been considered in the analogous process of infectious disease establishment and ...
Connors, B. M.   +3 more
core   +1 more source

A Study of Fish Lice (Argulus Sp.) Infection in Freshwater Food Fish [PDF]

open access: yesFolia Veterinaria, 2016
AbstractArgulussp., commonly referred to as fish lice, are crustacean ectoparasites of fishes. The hematophagous parasites attach to and feed off the integument of their hosts. Outbreaks of epizootics have been reported worldwide, causing mass mortalities and having serious economic implications for fish farms and culture efforts.Argulusfish lice may ...
Aalberg K.   +7 more
openaire   +2 more sources

Emamectin Benzoate Treatment of Hybrid Grouper Infected With Sea Lice in Hong Kong

open access: yesFrontiers in Veterinary Science, 2021
Sea lice (Copepoda: Caligidae) are ectoparasites which negatively impact marine aquaculture species around the world. There are a limited number of treatments licensed for use against sea lice in tropical and semi-tropical farmed fish species.
Sophie St-Hilaire   +8 more
doaj   +1 more source

The use of prevalence as a measure of lice burden: a case study of Lepeophtheirus salmonis on Scottish Atlantic salmon, Salmo salar L., farms [PDF]

open access: yes, 2009
This study investigates the benefits of using prevalence as a summary measure of sea lice infestation on farmed Atlantic salmon, Salmo salar L. Aspects such as sampling effort, the relationship between abundance and prevalence arising from the negative ...
Baillie, M.   +3 more
core   +1 more source

Changes in epidemiological patterns of sea lice infestation on farmed Atlantic salmon, Salmo salar L., in Scotland between 1996 and 2006 [PDF]

open access: yes, 2008
Analyses of a unique database containing sea lice records over an 11 year period provide evidence of changing infestation patterns in Scotland. The data, collected from more than 50 commercial Atlantic salmon farms, indicate that both species of sea lice
Bron J.E.   +13 more
core   +1 more source

Salmon lice infection on wild salmonids in marine protected areas: an evaluation of the Norwegian ‘National Salmon Fjords’

open access: yesAquaculture Environment Interactions, 2014
In Norway, 29 fjords and 52 rivers have been designated for protection in order to prevent the infection of important populations of wild salmonids with salmon lice of farm origin. We evaluated the effect of this protection on the lice infection pressure
RM Serra-Llinares   +6 more
doaj   +1 more source

Inclusion of photoautotrophic cultivated diatom biomass in salmon feed can deter lice.

open access: yesPLoS ONE, 2021
The aim of this study was to evaluate the potential of diatom (microalgae) biomass as a lice-reducing ingredient in salmon feed. The original hypothesis was based on the fact that polyunsaturated aldehydes (PUAs), e.g.
Hans Chr Eilertsen   +12 more
doaj   +1 more source

Practices to obtain lice counts at Norwegian salmon farms: status and possible implications for representativity

open access: yesAquaculture Environment Interactions, 2019
The Norwegian aquaculture industry faces several challenges. One such challenge is the prevalence of salmon lice, which adversely affect both wild and farmed salmon. At the core of the current regulatory regime are mandatory lice counts that are manually
Thorvaldsen, T, Frank, K, Sunde, LM
doaj   +1 more source

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