Variations in parasitic caligid infestations on farmed salmonids and implications for their management
TLDR
Temporal and geographic variations in infestations of Lepeophtheirus salmonis and Caligus elongatus are described from two species of farmed salmonids, Salmo salar L. and Oncorhynchus mykiss Walbaum.Abstract:
In order to evaluate the performance of various sea lice management strategies, data sets from a number of salmon farm sites on the west coast of Ireland were examined. These data sets were collected as part of the ongoingNational Sea Lice Monitoring Programme in Ireland. Temporal and geographic variations in infestations of Lepeophtheirus salmonis and Caligus elongatus are described from two species of farmedsalmonids, Salmo salar L. and Oncorhynchus mykiss Walbaum. Patterns of lice transmission, both within and between fish populations, are discussed and environmental and biotic influences considered. Clear differences in infestation parameters, which persist over a number of seasons, are identified between sites. Where infestation parameters are observed to change over successive seasons, these are linked to changing husbandry practices.read more
Citations
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Book ChapterDOI
Sealice on Salmonids: Their Biology and Control
A.W. Pike,S.L. Wadsworth +1 more
TL;DR: This review examines the voluminous literature on the biology and control of sealice and brings together ideas for developing the authors' knowledge of these organisms.
Journal Article
A Review of the Impact of Parasitic Copepods on Marine Aquaculture
TL;DR: The global importance of parasitic copepods as disease-causing agents in marine aquaculture is discussed and a brief review of the environmental and husbandry factors that may affect parasiticCopepod abundance and the potential roles that parasiticcopepods play as vectors for other disease agents are provided.
Journal ArticleDOI
Salmon lice--impact on wild salmonids and salmon aquaculture.
Ole Torrissen,Simon R. M. Jones,Frank Asche,Atle G. Guttormsen,Ove Skilbrei,Frank Nilsen,Tor Einar Horsberg,D. Jackson +7 more
TL;DR: The use of cleaner fish has emerged as a robust method for controlling salmon lice, and aquaculture production of wrasse is important towards this aim.
Journal ArticleDOI
Susceptibility of rainbow trout Oncorhynchus mykiss, Atlantic salmon Salmo salar and coho salmon Oncorhynchus kisutch to experimental infection with sea lice Lepeophtheirus salmonis.
Mark D. Fast,Neil W. Ross,Ahmed Mustafa,David E. Sims,Stewart C. Johnson,Gary Conboy,David J. Speare,Gerald R. Johnson,John F. Burka +8 more
TL;DR: The slower development of lice, coupled with delayed suppression of immune parameters, suggests that rainbow trout are slightly more resistant to lice than Atlantic salmon, and significant differences in mucus biochemistry and numbers of L. salmonis occur between these species.
Journal ArticleDOI
Salmon lice, Lepeophtheirus salmonis (Krøyer), infestation in sympatric populations of Arctic char, Salvelinus alpinus (L.), and sea trout, Salmo trutta (L.), in areas near and distant from salmon farms
Pål Arne Bjørn,Bengt Finstad +1 more
TL;DR: Bjorn et al. as mentioned in this paper examined the abundance of salmon lice in two stocks of sympatric anadromous Arctic char and sea trout in sub-Arctic regions in northern Norway in June, July, and August 1992 and 1993.
References
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Journal ArticleDOI
The use of cleaner-fish to control sea lice on two Irish salmon (Salmo salar) farms with particular reference to wrasse behaviour in salmon cages
TL;DR: Corkwing and goldsinny wrasse successfully controlled sea lice infestations on farmed Atlantic salmon smolts on two commercial fish farms off the west Irish coast, and cleaner-fish were shown to be a more effective lice control method than conventional chemical treatments in the case of diseased or stressed salmon.
Journal ArticleDOI
Variation in sea lice infestation on Atlantic salmon smolts in Killary Harbour, West Coast of Ireland
TL;DR: The population structure of the lice recovered from the smolts indicated that theLice settled in pulses rather than continuously over the trial period, and there was a significant difference between the infection levels in the cages on each of the sampling dates.
Journal ArticleDOI
The nature of Nature: conflict and consensus in fisheries management
TL;DR: In this paper, the authors argue that disferences in the way nature "operates" constitutes a major source of divisivcncss between, on the one hand, those members (and other managers in, say, government) who use linear modeling systems and, in the other hand, the majority of those in the commercial fishing sector who, intuitively, havc cast nature in those non-linear tcrms currently being explored in the Chaos paradigm.
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