Results 1 to 10 of about 30,587 (247)

Evidence That Head and Body Lice on Homeless Persons Have the Same Genotype [PDF]

PLoS ONE, 2012
Human head lice and body lice are morphologically and biologically similar but have distinct ecologies. They were shown to have almost the same basic genetic content (one gene is absent in head lice), but differentially express certain genes, presumably ...
Aurélie Veracx, Romain Rivet, Karen D Mccoy   +2 more
exaly   +2 more sources

Space-Time Modelling of the Spread of Salmon Lice between and within Norwegian Marine Salmon Farms [PDF]

PLoS ONE, 2013
Parasitic salmon lice are potentially harmful to salmonid hosts and farm produced lice pose a threat to wild salmonids. To control salmon lice infections in Norwegian salmonid farming, numbers of lice are regularly counted and lice abundance is reported ...
Magne Aldrin, Anja Bråthen Kristoffersen   +1 more
exaly   +2 more sources

Chitin Synthases Are Critical for Reproduction, Molting, and Digestion in the Salmon Louse (Lepeophtheirus salmonis)

Life, 2021
Chitin synthase (CHS) is a large transmembrane enzyme that polymerizes Uridine diphosphate N-acetylglucosamine into chitin. The genomes of insects often encode two chitin synthases, CHS1 and CHS2.
Hulda María Harðardóttir, Rune Male, Frank Nilsen, Sussie Dalvin   +3 more
doaj   +1 more source

A novel approach to co-expression network analysis identifies modules and genes relevant for moulting and development in the Atlantic salmon louse (Lepeophtheirus salmonis)

BMC Genomics, 2021
Background The salmon louse (Lepeophtheirus salmonis) is an obligate ectoparasitic copepod living on Atlantic salmon and other salmonids in the marine environment.
Zhaoran Zhou, Christiane Eichner, Frank Nilsen, Inge Jonassen, Michael Dondrup   +4 more
doaj   +1 more source

Two apolipoproteins in salmon louse (Lepeophtheirus salmonis), apolipoprotein 1 knock down reduces reproductive capacity

Biochemistry and Biophysics Reports, 2021
The salmon louse, Lepeophtheirus salmonis is an ectoparasite of salmonid fish in the Northern Hemisphere, causing large economical losses in the aquaculture industry and represent a threat to wild populations of salmonids.
Muhammad Tanveer Khan, Sussie Dalvin, Frank Nilsen, Rune Male   +3 more
doaj   +1 more source

Roles of three putative salmon louse (Lepeophtheirus salmonis) prostaglandin E2 synthases in physiology and host–parasite interactions

Parasites & Vectors, 2021
Background The salmon louse (Lepeophtheirus salmonis) is a parasite of salmonid fish. Atlantic salmon (Salmo salar) exhibit only a limited and ineffective immune response when infested with this parasite.
Sussie Dalvin, Christiane Eichner, Michael Dondrup, Aina-Cathrine Øvergård   +3 more
doaj   +1 more source

Identification and characterization of two salmon louse heme peroxidases and their potential as vaccine antigens

iScience, 2023
Summary: Salmon louse, Lepeophtheirus salmonis, represents major challenge for salmon farming. Current treatments impose welfare issues and are costly, whereas prophylactic measures are unavailable.
Elisabeth Gislefoss, Amr Ahmed Abdelrahim Gamil, Aina-Cathrine Øvergård, Øystein Evensen   +3 more
doaj   +1 more source

Host gill attachment causes blood-feeding by the salmon louse (Lepeophtheirus salmonis) chalimus larvae and alters parasite development and transcriptome

Parasites & Vectors, 2020
Background Blood-feeding is a common strategy among parasitizing arthropods, including the ectoparasitic salmon louse (Lepeophtheirus salmonis), feeding off its salmon host’s skin and blood. Blood is rich in nutrients, among these iron and heme.
Erna Irene Heggland, Michael Dondrup, Frank Nilsen, Christiane Eichner   +3 more
doaj   +1 more source

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

Parasites & 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, Marit Jørgensen Bakke, Kari Olli Helgesen, Arvind Y. M. Sundaram, Sigrid Jørgensen Bakke, Kiranpreet Kaur, Tor Einar Horsberg   +6 more
doaj   +1 more source

Principles and Methods of Counteracting Harmful Salmon–Arthropod Interactions in Salmon Farming: Addressing Possibilities, Limitations, and Future Options

Frontiers in Marine Science, 2021
The arthropod salmon louse (Lepeophtheirus salmonis) is a major threat to Atlantic salmon aquaculture and wild salmonids. Essentially like in monoculture, very high concentrations of susceptible hosts may result in high reproduction and severe production
Prashanna Guragain, Prashanna Guragain, Max Tkachov, Max Tkachov, Anna Solvang Båtnes, Yngvar Olsen, Per Winge, Per Winge, Atle M. Bones, Atle M. Bones   +9 more
doaj   +1 more source