Results 21 to 30 of about 3,849 (168)

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

Parasitic sea louse infestations on wild sea trout: separating the roles of fish farms and temperature

open access: yesParasites & Vectors, 2018
Background The causal relation between parasitic sea lice on fish farms and sea lice on wild fish is a controversial subject. A specific scientific debate has been whether the statistical association between infestation pressure (IP) from fish farms and ...
Knut W. Vollset   +4 more
doaj   +1 more source

Protective Immunization of Atlantic Salmon (Salmo salar L.) against Salmon Lice (Lepeophtheirus salmonis) Infestation

open access: yesVaccines, 2021
Vaccination against salmon lice (Lepeophtheirus salmonis) is a means of control that averts the negative effects of chemical approaches. Here, we studied the immunogenicity and protective effect of a vaccine formulation (based on a salmon lice-gut ...
Haitham Tartor   +10 more
doaj   +1 more source

Lice pressure from salmon farms on wild sea trout (Salmo trutta) in a Norwegian fjord

open access: yesFrontiers in Marine Science, 2015
Salmon lice Lepeophtheirus salmonis are external parasites on salmonids in the marine environment. However, during recent years, salmon lice abundance has increased due to the presence of salmon farming.
Pablo Arechavala-Lopez   +2 more
doaj   +1 more source

Sea lice and salmon population dynamics: effects of exposure time for migratory fish [PDF]

open access: yesProceedings of the Royal Society B: Biological Sciences, 2009
The ecological impact of parasite transmission from fish farms is probably mediated by the migration of wild fishes, which determines the period of exposure to parasites. For Pacific salmon and the parasitic sea louse, Lepeophtheirus salmonis , analysis of the exposure period may resolve conflicting observations of ...
Martin, Krkosek   +3 more
openaire   +2 more sources

Validating a biophysical parasite model with fish farm pen and plankton trawl data

open access: yesAquaculture Environment Interactions, 2021
Biophysical models of parasite dispersal are being increasingly used as a method for screening marine aquaculture developments, whether in establishment of new sites or expansion of existing sites, or planning of farmed fish health management strategies ...
TP Adams, S Marshall, S Brown, K Black
doaj   +1 more source

Using sentinel cages to estimate infestation pressure on salmonids from sea lice in Loch Shieldaig, Scotland

open access: yesAquaculture Environment Interactions, 2014
Sentinel Atlantic salmon, held in cages, were used to estimate the monthly infestation pressure of sea lice at 3 locations along a salmonid migration route in Loch Shieldaig, a Scottish west coast sea loch.
CC Pert   +12 more
doaj   +1 more source

Pigments, parasites and personalitiy: towards a unifying role for steroid hormones? [PDF]

open access: yesPLoS ONE, 2012
A surging interest in the evolution of consistent trait correlations has inspired research on pigment patterns as a correlate of behavioural syndromes, or "animal personalities".
Silje Kittilsen   +3 more
doaj   +1 more source

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