Results 41 to 50 of about 1,643 (170)

Salmon‐lice as a potential threat to anadromous Arctic charr populations

Journal of Fish Diseases, 2023
AbstractSalmon‐lice have the potential to change the behaviour and growth of their salmonid host species. Here, the baseline infection levels of salmon‐lice of post‐smolts (n = 815) and veteran migrants (n = 875) of sea‐run Arctic charr (Salvelinus alpinus Linnaeus, 1758) were monitored over two successive years in a sub‐Arctic Norwegian fjord without ...
Gabrielle Grenier, Eloïse C. Rochat, Rune Muladal, Hallvard Jensen, Rune Knudsen   +4 more
openaire   +4 more sources

Do the biological characteristics of trout (Salmo trutta) smolts influence their spring migration timing and maiden marine sojourn duration?

Journal of Fish Biology, EarlyView.
Abstract Anadromous salmonids migrate seaward to exploit feeding and growth opportunities in marine habitats, yet how smolt biological characteristics influence their marine migratory behavior remains poorly understood. This study used 9 years of trout (Salmo trutta) population monitoring data from 15,595 tagged age‐0+ parr, 1033 smolts detected ...
Jonathan P. Gillson, Robert E. Blackwell, Stephen D. Gregory, Jessica E. Marsh, Tea Bašić, Sophie A. M. Elliott, R. Andrew King, David L. Maxwell, William D. Riley, Jamie R. Stevens, Alan M. Walker, Rasmus B. Lauridsen   +11 more
wiley   +1 more source

Follow-Up Study on Acoustic De-Licing of Atlantic Salmon (Salmo salar): Lepeophtheirus salmonis and Caligus elongatus Dynamics over Four Consecutive Production Cycles

Journal of Marine Science and Engineering
Acoustic lice treatment (AcuLice) is a newly developed system which uses a composite acoustic sound image with low-frequency sound to remove salmon lice (Lepeophtheirus salmonis) from Atlantic salmon (Salmo salar).
Albert Kjartan Dagbjartarson Imsland, Pablo Balseiro, Sigurd Handeland, Olav Rune Godø   +3 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

Fish welfare in a changing world: New developments and current challenges

Journal of Fish Biology, EarlyView.
Abstract The welfare of non‐human animals is central to ethical discussions on animal use, with increasing attention to fish welfare across research, aquaria, aquaculture, and fisheries. This paper reviews current theoretical approaches to animal welfare and recent advances in defining and assessing fish welfare since the seminal paper by Huntingford ...
Sonia Rey Planellas, João L. Saraiva, Eliane Gonçalves‐de‐Freitas, Pablo Arechavala‐Lopez, Bernice Bovenkerk, Michael Breen, Steven J. Cooke, Martin Føre, Lene Northwood, Lars Helge Stien, Sunil Kadri, Chris Noble, Jonatan Nilsson, Fernando Rodriguez, Cosme Salas, Peter Sandøe, Hans van de Vis   +16 more
wiley   +1 more source

Consequences of reduced effectiveness of salmon lice treatments for lice control

Preventive Veterinary Medicine
The effective control of ectoparasitic salmon lice, Lepeophtheirus salmonis, in fish farms is challenged by the salmon lice having developed resistance towards several antiparasitic drugs and by the effectiveness of non-medicinal treatments being limited by considerations of fish welfare.
Leif Christian, Stige, Ragnar B, Huseby, Kari O, Helgesen, Magne, Aldrin, Lars, Qviller   +4 more
openaire   +2 more sources

Sea lice, Lepeophtheirus salmonis (Krøyer 1837), infected Atlantic salmon (Salmo salar L.) are more susceptible to infectious salmon anemia virus.

PLoS ONE, 2019
The role of parasitic sea lice (Siphonostomatoida; Caligidae), especially Lepeophtheirus salmonis, in the epidemiology of Infectious Salmon Anemia Virus (ISAv) has long been suspected.
Sarah E Barker, Ian R Bricknell, Julia Covello, Sarah Purcell, Mark D Fast, William Wolters, Deborah A Bouchard   +6 more
doaj   +1 more source

Toward a model-based prediction system for salmon lice infestation pressure

Aquaculture Environment Interactions, 2016
High salmon lice density is a threat to wild and farmed salmonid fish in Norway. To assess and identify areas for high salmon lice infestation pressure, continuous monitoring is necessary.
AD Sandvik, PA Bjørn, B Ådlandsvik, L Asplin, J Skarðhamar, IA Johnsen, M Myksvoll, MD Skogen   +7 more
doaj   +1 more source

Interacting Effects of Sea Louse (Lepeophtheirus salmonis) Infection and Formalin-Killed Aeromonas salmonicida on Atlantic Salmon Skin Transcriptome

Frontiers in Immunology, 2022
Lepeophtheirus salmonis (sea lice) and bacterial co-infection threatens wild and farmed Atlantic salmon performance and welfare. In the present study, pre-adult L.
Albert Caballero-Solares, Navaneethaiyer Umasuthan, Xi Xue, Tomer Katan, Surendra Kumar, Jillian D. Westcott, Zhiyu Chen, Zhiyu Chen, Mark D. Fast, Stanko Skugor, Richard G. Taylor, Matthew L. Rise   +11 more
doaj   +1 more source

Genetic composition of facultatively anadromous brown trout Salmo trutta L. in a freshwater‐lake system

Journal of Fish Biology, EarlyView.
Abstract Brown trout (Salmo trutta) has adapted to a wide range of habitats and displays a variety of life‐history strategies. Being facultatively anadromous, populations without migration barriers to the sea consist of both resident and anadromous individuals in different proportions.
Ingerid J. Hagen, Rachel A. Paterson, Sten Karlsson, Ola H. Diserud, Geir H. Bolstad, Eva M. Ulvan, Ola Ugedal, Tor F. Næsje   +7 more
wiley   +1 more source