Browsing Department of Biological Sciences by Subject "Lepeophtheirus salmonis"
Now showing items 1-11 of 11
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Aquaculture-driven evolution of the salmon louse (Lepeophtheirus salmonis) mtDNA genome
(Master thesis, 2022-06-01)Widespread resistance towards pyrethroids, a pesticide that has been extensively used in salmonid aquaculture to control sea lice, is reported in the salmon louse (Lepeophtheirus salmonis). The resistance mechanism has ... -
A common-garden experiment to quantify evolutionary processes in copepods: the case of emamectin benzoate resistance in the parasitic sea louse Lepeophtheirus salmonis
(Peer reviewed; Journal article, 2014-05-19)Background: The development of pesticide resistance represents a global challenge to food production. Specifically for the Atlantic salmon aquaculture industry, parasitic sea lice and their developing resistance to delousing ... -
Development of the salmon louse Lepeophtheirus salmonis parasitic stages in temperatures ranging from 3 to 24°C
(Peer reviewed; Journal article, 2019-09-05)The development rate of the salmon louse Lepeophtheirus salmonis is greatly influenced by seawater temperature. This study describes how the growth rate of L. salmonis changes with temperature and identifies the extreme ... -
Genomic Resources for Sea Lice: Analysis of ESTs and Mitochondrial Genomes
(Peer reviewed; Journal article, 2011-07-12)Sea lice are common parasites of both farmed and wild salmon. Salmon farming constitutes an important economic market in North America, South America, and Northern Europe. Infections with sea lice can result in significant ... -
Invest more and die faster: The life history of a parasite on intensive farms
(Peer reviewed; Journal article, 2017-10)Organisms are expected to respond to alterations in their survival by evolutionary changes in their life history traits. As agriculture and aquaculture have become increasingly intensive in the past decades, there has been ... -
Migration of Atlantic salmon post-smolts in a fjord with high infestation pressure of salmon lice
(Peer reviewed; Journal article, 2018)Understanding Atlantic salmon Salmo salar post-smolt coastal migration behaviour is crucial for predicting their exposure to ecological challenges such as the parasite salmon louse Lepeophtheirus salmonis. We compared the ... -
Salmon lice sampled from wild Atlantic salmon and sea trout throughout Norway display high frequencies of the genotype Associated with pyrethroid resistance
(Peer reviewed; Journal article, 2019)Atlantic salmon Salmo salar aquaculture is based on the use of open-pen sea cages, with the consequence that farmed fish are both recipients and sources of pathogens from surrounding waters. Currently, the parasitic salmon ... -
Sequence variation in four mitochondrial genes of the salmon louse Lepeophtheirus salmonis
(Peer reviewed; Journal article, 2006-03-02)A total of 210 Lepeophtheirus salmonis collected from 7 locations (Scotland, Russia, Canada, Japan and 3 locations in Norway), were screened for sequence variation in 4 mitochondrial genes; ATPase subunit 6 (A6), Cytochrome ... -
Snorkel sea-cage technology decreases salmon louse infestation by 75% in a full-cycle commercial test
(Peer reviewed; Journal article, 2019-09-13)Methods to prevent parasite infestations in farmed fish are becoming widespread, yet tests of their effectiveness often lack commercial relevance and statistical power, which may lead to technology misuse. Here, we examined ... -
Surface environment modification in Atlantic salmon sea-cages: Effects on amoebic gill disease, salmon lice, growth and welfare
(Peer reviewed; Journal article, 2018)Surface environment modification is a potential parasite control strategy in Atlantic salmon sea-cage farming. For instance, a temporary low salinity surface layer in commercial-scale snorkel sea-cages has coincided with ... -
Vertical salmon lice behaviour as a response to environmental conditions and its influence on regional dispersion in a fjord system
(Peer reviewed; Journal article, 2014)The salmon louse Lepeophtheirus salmonis is a major parasite of salmon, and is able to travel between farms during its pelagic phases. We investigated the spatial dispersion of L. salmonis planktonic stages in the ...