Results 71 to 80 of about 3,849 (168)

First report of reduced sensitivity towards hydrogen peroxide found in the salmon louse Lepeophtheirus salmonis in Norway

Aquaculture Reports, 2015
Reduced sensitivity towards chemotherapeutants in the salmon louse Lepeophtheirus salmonis (Krøyer) is an increasing problem for the fish farming industry.
Kari Olli Helgesen, Harriet Romstad, Stian Mørch Aaen, Tor Einar Horsberg   +3 more
doaj   +1 more source

Widespread Lateral Transmission in Fergusonina Galling Flies (Diptera: Fergusoninidae) and Their Obligate Nematode Mutualists Does Not Preclude an Overall Pattern of Cospeciation

Ecology and Evolution, Volume 16, Issue 6, June 2026.
The biology of gall‐forming fergusoninid flies and their obligate nematode mutualists suggests strict vertical transmission of nematodes between fly generations. Using mitochondrial sequence data to associate fly and nematode haplotypes, we found widespread intraspecific horizontal transfer in multiple species.
Sonja J. Scheffer, Matthew L. Lewis, Kerrie A. Davies, Robin M. Giblin‐Davis, Gary S. Taylor, Leigh A. Nelson, Matthew F. Purcell, Jeff R. Makinson, Weimin Ye, Kevin E. Omland, David K. Yeates   +10 more
wiley   +1 more source

Sea louse infection of juvenile sockeye salmon in relation to marine salmon farms on Canada's west coast.

PLoS ONE, 2011
BackgroundPathogens are growing threats to wildlife. The rapid growth of marine salmon farms over the past two decades has increased host abundance for pathogenic sea lice in coastal waters, and wild juvenile salmon swimming past farms are frequently ...
Michael H H Price, Stan L Proboszcz, Rick D Routledge, Allen S Gottesfeld, Craig Orr, John D Reynolds   +5 more
doaj   +1 more source

Negative association of sea lice from fish farms on recreational fishing catches of Atlantic salmon

Journal of Applied Ecology
Abstract The question of whether and to what extent sea‐louse (Lepeophtheirus salmonis) infestations from salmon farms influence wild Atlantic salmon survival has been subject to sustained scientific debate and political controversy. Documenting population‐level effects of sea lice on wild salmon remains inherently challenging.
Mari Lie Larsen, Irja Vormedal, Knut W. Vollset   +2 more
openaire   +4 more sources

The impact of functional feed on Atlantic salmon (Salmo salar) systemic immune response to high and low levels of sea lice infection (Lepeophtheirus salmonis) and co-infection with infectious salmon anemia virus

Comparative Immunology Reports
Due to the nature of open-pen farming, salmon are exposed to numerous pathogens shared by other farms and their wild counterparts. Industry must manage these outbreaks through vaccination, oral or bath treatments, and more recently through functional ...
Laura A. Carvalho, Shona K. Whyte, Sara L. Purcell, Tyson Hay, Richard G. Taylor, Rachel Balder, Nellie Gagné, Sussie Dalvin, Mark D. Fast   +8 more
doaj   +1 more source

A method of estimating in situ salmon louse nauplii production at fish farms

Aquaculture Environment Interactions, 2016
Abundance and depth distribution of planktonic sea lice were investigated in relation to hydrodynamics and diurnal solar insolation at a salmon farm in Sundalagið, Faroe Islands.
G á Norði, K Simonsen, Ø Patursson
doaj   +1 more source

Acclimation with lice-infested salmon improves cleaner fish delousing performance

, 2021
Securing the welfare and maximising the lice removal efficacy of ~60 million cleaner fish used each year on salmonid farms is essential to develop a productive and ethical industry with low salmon lice Lepeophtheirus salmonis levels. We tested whether ballan wrasse Labrus bergylta welfare and lice consumption differed depending upon whether they were ...
Gentry, Katherine, Bui, Samantha, Oppedal, Frode, Bjelland, Reidun Marie, Nola, Velimir, Dempster, Timothy David   +5 more
openaire   +1 more source

Modeling dynamics of adult female lice at salmon farming sites in Eastern Canada: a stochastic, state-based approach

Frontiers in Aquaculture
IntroductionSea lice are parasitic copepods that harm salmon health, reduce farm productivity, and create ecological and economic challenges for aquaculture.MethodsA stochastic, state-based, time-dependent epidemiological model was developed to ...
Francisco Bravo, Francisco Bravo, Francisco Bravo, Mariana Oliveira, Marianne I. Parent, Marianne I. Parent, Jennie Korus, Tyler Sclodnick, Ian Gardner, Christopher Whidden, Ramón Filgueira, K. Larry Hammell, Andrew K. Swanson, Luís Torgo, Jon Grant   +14 more
doaj   +1 more source

Checklists of Fish Species Infected with the Fish Lice Genus Argulus Müller O.F., 1785 (Crustacea: Argulidae) in Iraq

المجلة العراقية للاستزراع المائي
For preparing this article, 47 references dealing with the occurrence of species of the fish lice genus Argulus Müller O.F., 1785 infecting fish species in Iraq, until the end of 2024, were consulted. A total of 18 fish species were found to be infected with three species of this genus: A. coregoni. A. foliaceus and A.
openaire   +3 more sources

A gap analysis on modelling of sea lice infection pressure from salmonid farms. II. Identifying and ranking knowledge gaps: output of an international workshop

Aquaculture Environment Interactions
Sea lice are a major health hazard for farmed Atlantic salmon in Europe, and their impact is felt globally. Given the breadth of ongoing research in sea lice dispersal and population modelling, and focus on research-led adaptive management, we brought ...
JM Murphy, M Moriarty, AJ Brooker, W Waites, CW Revie, TP Adams, M Lewis, HC Reinardy, JP Phelan, JP Coyle, B Rabe, SC Ives, JD Armstrong, AD Sandvik, L Asplin, Ø Karlsen, S Garnier, G á Norði, PA Gillibrand, KS Last, AG Murray   +20 more
doaj   +1 more source