Results 21 to 30 of about 259 (65)

Pigments, parasites and personalitiy: towards a unifying role for steroid hormones? [PDF]

PLoS ONE, 2012
A surging interest in the evolution of consistent trait correlations has inspired research on pigment patterns as a correlate of behavioural syndromes, or "animal personalities".
Silje Kittilsen, Ida Beitnes Johansen, Bjarne Olai Braastad, Øyvind Øverli   +3 more
doaj   +1 more source

Sea lice removal by cleaner fish in salmon aquaculture: a review of the evidence base

Aquaculture Environment Interactions, 2020
Stocking cleaner fish to control sea lice infestations in Atlantic salmon farms is widespread and is viewed as a salmon welfare-friendly alternative to current delousing control treatments.
Overton, K, Barrett, LT, Oppedal, F, Kristiansen, TS, Dempster, T   +4 more
doaj   +1 more source

Generation of quantifiable knowledge about delouse treatments of salmon – The case of Hydrolicer®/Hydroflow treatments

Aquaculture Reports, 2023
Controlling the salmon lice problem is at the very core of the salmon farming industry’s growth challenges. One group of methods to control lice is the mechanical treatment methods.
Tommy O. Olsen, Denis M. Becker
doaj   +1 more source

Crowding causes detachment and loss of mobile sea lice: Fine-meshed crowding nets may mitigate spread

Aquaculture Reports
Detachment of mobile lice from salmon during crowding and handling procedures in sea-cage fish farms may lead to loss and unwanted spread of ectoparasitic sea lice to other cages, farms or wild fish.
Lena Geitung, Luke T. Barrett, Velimir Nola, Sussie Dalvin, Line Vatne Martinsen, Adele Dahlgren, Frode Oppedal   +6 more
doaj   +1 more source

Salmon lice dispersion in a northern Norwegian fjord system and the impact of vertical movements

Aquaculture Environment Interactions, 2016
The abundance and distribution of salmon lice Lepeophtheirus salmons originating from fish farms in a northern Norwegian fjord during the summer of 2010 was investigated by means of a numerical model, underpinned by field observations.
IA Johnsen, LC Asplin, AD Sandvik, RM Serra-Llinares   +3 more
doaj   +1 more source

Heritability of Immunity Traits and Resistance of Atlantic Salmon against the Sea Louse Caligus rogercresseyi

Biology, 2023
The immune response of Atlantic salmon to sea lice has been extensively studied, but we still do not know the mechanisms by which some fish become resistant and others do not.
Débora Torrealba, Byron Morales-Lange, Victoriano Mulero, Anti Vasemägi, Luis Mercado, José Gallardo-Matus   +5 more
doaj   +1 more source

Effects of salmon lice infection on the behaviour of sea trout in the marine phase

Aquaculture Environment Interactions, 2014
Salmon lice Lepeophtheirus salmonis Krøyer may affect survival and growth of anadromous salmonids through physiological stress and/or behavioural changes.
KØ Gjelland, RM Serra-Llinares, RD Hedger, P Arechavala-Lopez, R Nilsen, B Finstad, I Uglem, OT Skilbrei, PA Bjørn   +8 more
doaj   +1 more source

Sea Lice (Lepeophtheirus salmonis) Infestation Reduces the Ability of Peripheral Blood Monocytic Cells (PBMCs) to Respond to and Control Replication of Salmonid Alphavirus in Atlantic Salmon (Salmo salar L.)

Viruses, 2020
Here we have studied the impact of lice (Lepeophtheirus salmonis) infestation of donor fish on the ability of isolated peripheral blood monocytes (PBMCs) to control the replication of salmonid alphavirus (SAV) ex vivo.
Amr A. A. Gamil, Koestan Gadan, Elisabeth Gislefoss, Øystein Evensen   +3 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

First report of winter epizootic of salmon lice on sea trout in Norway

Aquaculture Environment Interactions, 2014
Here we report on the first observation of a winter epizootic of salmon lice Lepeophtheirus salmonis Krøyer on sea trout Salmo trutta Linnaeus in a Norwegian fjord with intensive salmon farming.
KW Vollset, BT Barlaup
doaj   +1 more source