Results 161 to 170 of about 3,472 (198)

Effects of salmon lice infection and salmon lice protection on fjord migrating Atlantic salmon and brown trout post-smolts

open access: yesHydrobiologia, 2007
Effects of artificial salmon lice infection and pharmaceutical salmon lice prophylaxis on survival and rate of progression of Atlantic salmon (n = 72) and brown trout post-smolts (n = 72) during their fjord migration, were studied by telemetry. The infected groups were artificially exposed to infective salmon lice larvae in the laboratory immediately ...
Eva B Thorstad   +2 more
exaly   +3 more sources

Atlantic salmon infected with salmon lice are more susceptible to new lice infections

open access: yesJournal of Fish Diseases, 2016
AbstractAggregation is commonly observed for macroparasites, but its adaptive value remains unclear. Heavy infestations intensities may lead to a decrease in some fitness‐related traits of parasites (e.g. parasite fecundity or survival). However, to a dioecious parasite, increased aggregation could also increase the chance of finding individuals of the
Ugelvik, M. S.   +3 more
openaire   +3 more sources
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Controlling salmon lice on farmed salmon and implications for wild salmon.

CABI Reviews, 2009
Abstract This review documents the extent to which management of salmon lice ( Lepeophtheirus salmonis ) on farms has a measurable impact on the health of wild salmon.
openaire   +1 more source

The physiological effects of salmon lice infection on post-smolt of Atlantic salmon

Journal of Fish Biology, 1996
The physiological effects of salmon lice infections on post‐smolt of Atlantic salmon were examined by experimentally infecting hatchery reared post‐smolts with infective copepodids. Even at high infection intensities, ranging from 30–250 lice per fish, early chalimus stages did not have severe, physiological effects on the fish.
A. Grimnes, P.J. Jakobsen
openaire   +2 more sources

Modelling salmon lice dispersal in Loch Torridon, Scotland

Marine Pollution Bulletin, 2006
A particle transport model is described that is being used to simulate the dispersal of salmon lice (Lepeophtheirus salmonis) larvae in the waters of Loch Torridon. A hydrodynamic model, forced by tides and winds, drives the transport model. Particle movements are strongly influenced by winds, which can lead to formation of lice concentrations in ...
A G, Murray, P A, Gillibrand
openaire   +2 more sources

Salmon lice from aquaculture reduce marine survival of Atlantic salmon

Journal of Animal Ecology
Abstract Salmon lice from marine salmon aquaculture have been shown to impact the survival of wild salmon migrating through aquaculture areas, but quantifying the level of impact has proven difficult. This difficulty has led to the use of randomised control trials.
Patrick G. Gargan   +3 more
openaire   +2 more sources

Coho salmon productivity in relation to salmon lice from infected prey and salmon farms

Journal of Applied Ecology, 2010
Summary 1. Pathogen transmission from open net‐pen aquaculture facilities can depress sympatric wild fish populations. However, little is known about the effects of pathogen transmission from farmed fish on species interactions or other ecosystem components.
Brendan M. Connors   +3 more
openaire   +1 more source

Susceptibility of Atlantic salmon and rainbow trout to the salmon lice Lepeophtheirus salmonis

Aquaculture, 2009
Abstract The susceptibility of Atlantic salmon and rainbow trout to Lepeophtheirus salmonis was investigated in a controlled infestation test in two replicated tanks (each 3 m diameter, water depth 1.8 m) of in total 1094 Atlantic salmon and 58 rainbow trout (tank 1) and 1112 Atlantic salmon and 61 rainbow trout (tank 2). The Atlantic salmon were 1+
Bjarne Gjerde, Bjarne Saltkjelvik
openaire   +1 more source

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