Results 191 to 200 of about 7,241 (229)
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Development and assessment of a biophysical dispersal model for sea lice
Journal of Fish Diseases, 2013AbstractSalmon aquaculture in Scotland continues to increase; however, one of the potential limitations to its further sustainable growth is the ectoparasitic sea louse Lepeophtheirus salmonis. The industry in Scotland undertakes coordinated management procedures to control the levels of sea lice on farms in designated production areas.
N K G, Salama +6 more
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Sea‐Cage Aquaculture, Sea Lice, and Declines of Wild Fish
Conservation Biology, 2009Abstract: A sea cage, sometimes referred to as a net pen, is an enclosure designed to prevent farm fish from escaping and to protect them from large predators, while allowing a free flow of water through the cage to carry away waste.
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Sea lice parasites and salmonids – a hormesis perspective
Trends in ParasitologyLow-dose exposure to pesticides can have stimulatory effects on the biological traits of arthropods, a hallmark of hormesis, which induces adaptive responses. In this forum article we postulate that such responses could be induced in sea lice ectoparasitic copepods, offering a perspective for scientific advance and improved practical solutions.
Halina Sobolewska, Evgenios Agathokleous
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Drug resistance in sea lice: a threat to salmonid aquaculture
Trends in Parasitology, 2015Sea lice are copepod ectoparasites with vast reproductive potential and affect a wide variety of fish species. The number of parasites causing morbidity is proportional to fish size. Natural low host density restricts massive parasite dispersal. However, expanded salmon farming has shifted the conditions in favor of the parasite. Salmon farms are often
Stian Mørch, Aaen +4 more
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Estimating costs of sea lice control strategy in Norway
Preventive Veterinary Medicine, 2014This paper explores the costs of sea lice control strategies associated with salmon aquaculture at a farm level in Norway. Diseases can cause reduction in growth, low feed efficiency and market prices, increasing mortality rates, and expenditures on prevention and treatment measures.
Yajie, Liu, Hans Vanhauwaer, Bjelland
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Sea lice — Major pathogens of farmed atlantic salmon
Parasitology Today, 1989The most important metazoan parasites of farmed Atlantic salmon are the sea lice Lepeophtheirus salmonis and Caligus elongatus. Adults of these caligid copepods are responsible for serious damage to the skin of salmon, which may die unless treated with organophosphorus pesticides.
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Sea lice infections of salmonids farmed in Australia
Aquaculture, 2011Sea lice cause significant issues in the mariculture of salmonids. However, there have been no reports about sea lice from salmonid farming in Australia. Here, we investigated the presence of sea lice on salmonids in Australian mariculture. Caligus longirostris was present on Atlantic salmon and rainbow trout (archival samples only) farmed in Tasmania.
Nowak, B. F. +4 more
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Ecology of sea lice parasitic on farmed and wild fish
Trends in Parasitology, 2006Sea lice, especially Lepeophtheirus salmonis and Caligus spp., have the greatest economic impact of any parasite in salmonid fish farming and are also a threat to wild salmonids. Here, I review how the biology and ecology of various louse and host species influence their pathogenicity and epidemiology.
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Sea lice biology, identification and laboratory methods
2009Introduction: This section provides a brief overview of aspects of sea lice biology and simplified methods to identify the difference species found on salmonids in British Columbia. The term sea louse (pl. sea lice) is the common name used for several species of marine ectoparasitic copepods of the family Caligidae (Order Copepoda: Suborder ...
Galbraith, M. +2 more
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