Results 31 to 40 of about 6,074 (228)

Sea lice escape predation on their host [PDF]

Biology Letters, 2008
Parasites seldom have predators but often fall victim to those of their hosts. How parasites respond to host predation can have important consequences for both hosts and parasites, though empirical investigations are rare. The exposure of wild juvenile salmon to sea lice (Lepeophtheirus salmonis) from salmon farms allowed us to study a novel ecological
B M, Connors, M, Krkosek, L M, Dill
openaire   +2 more sources

Modeling salmon lice effects on sea trout population dynamics using an individual-based approach

Aquaculture Environment Interactions, 2021
Salmon lice Lepeophtheirus salmonis infestation of sea trout Salmo trutta results in both additional marine mortality and behavioral changes which may contribute to sea trout population decline.
RD Hedger, OH Diserud, B Finstad, AJ Jensen, DK Hendrichsen, O Ugedal, TF Næsje   +6 more
doaj   +1 more source

Biofouling on Salmon Pen Nets and Cleaner Fish Shelters Does Not Harbor Planktonic Stages of Sea Lice

Frontiers in Marine Science, 2020
The objective of the current study was to determine the extent to which planktonic sea lice (Lepeophtheirus salmonis Krøyer, 1838 and Caligus elongatus Nordmann, 1832) were present in the biofouling on open-sea net pens used for commercial rearing of ...
Lone S. Jevne, Margrete S. Øvrelid, Andreas Hagemann, Nina Bloecher, Kristine B. Steinhovden, Anna S. Båtnes, Yngvar Olsen, Kjell I. Reitan   +7 more
doaj   +1 more source

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

Caligus rogercresseyi acetylcholinesterase types and variants: a potential marker for organophosphate resistance

Parasites & Vectors, 2018
Background Control of the sea louse Caligus rogercresseyi in the Chilean salmonid industry is reliant on chemical treatments. Azamethiphos was introduced in 2013, although other organophosphates were previously used.
Celia Agusti-Ridaura, Michael Dondrup, Tor E. Horsberg, Jong S. Leong, Ben F. Koop, Sandra Bravo, Julio Mendoza, Kiranpreet Kaur   +7 more
doaj   +1 more source

Simulated effects of increasing salmonid production on sea lice populations in Norway

Epidemics, 2021
Norway produces more than one million tonnes of salmonids every year, almost exclusively in open-water net pens. In 2014, the Norwegian government announced plans to increase salmonid production.
Katharine R. Dean, Magne Aldrin, Lars Qviller, Kari Olli Helgesen, Peder A. Jansen, Britt Bang Jensen   +5 more
doaj   +1 more source

Microsomal triglyceride transfer protein in the ectoparasitic crustacean salmon louse (Lepeophtheirus salmonis)

Journal of Lipid Research, 2017
The salmon louse, Lepeophtheirus salmonis, is an endemic ectoparasite on salmonid fish that is challenging for the salmon farming industry and wild fish.
Muhammad Tanveer Khan, Sussie Dalvin, Frank Nilsen, Rune Male   +3 more
doaj   +1 more source

ENSO and QBO modulation of the relationship between Arctic sea ice loss and Eurasian winter climate

Environmental Research Letters, 2022
The causality between Arctic sea ice decline and cold boreal winters has been widely debated recently and remains controversial. A major source of uncertainty in the sea ice-cold winter relationship originates from that the stratosphere polar vortex (SPV)
Xuan Ma, Lei Wang, Doug Smith, Leon Hermanson, Rosie Eade, Nick Dunstone, Steven Hardiman, Jiankai Zhang   +7 more
doaj   +1 more source

Salmon louse labial gland enzymes: implications for host settlement and immune modulation

Frontiers in Genetics
Salmon louse (Lepeophtheirus salmonis) is a skin- and blood-feeding ectoparasite, infesting salmonids. While feeding, labial gland proteins from the salmon louse may be deposited on the Atlantic salmon (Salmo salar) skin.
Helena Marie Doherty Midtbø, Christiane Eichner, Lars Are Hamre, Michael Dondrup, Linn Flesland, Kristoffer Helland Tysseland, Heidi Kongshaug, Andreas Borchel, Renate Hvidsten Skoge, Frank Nilsen, Aina-Cathrine Øvergård   +10 more
doaj   +1 more source

Sea lice in Iceland: assessing the status and current implications for aquaculture and wild salmonids

Aquaculture Environment Interactions, 2019
This is the first in-depth study which quantifies lice infestation levels on wild and farmed salmonids in a fjord system in Iceland (Arnarfjörður, Westfjords) and gives a baseline for the assessment of sea lice infestation within Icelandic fjords.
Karbowski, CM, Finstad, B, Karbowski, N, Hedger, RD   +3 more
doaj   +1 more source