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Relevant bibliographies by topics / Sea lice; Salmon farms

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Academic literature on the topic 'Sea lice; Salmon farms'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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Journal articles on the topic "Sea lice; Salmon farms"

1

Morton, Alexandra, Richard Routledge, Corey Peet, and Aleria Ladwig. "Sea lice (Lepeophtheirus salmonis) infection rates on juvenile pink (Oncorhynchus gorbuscha) and chum (Oncorhynchus keta) salmon in the nearshore marine environment of British Columbia, Canada." Canadian Journal of Fisheries and Aquatic Sciences 61, no. 2 (2004): 147–57. http://dx.doi.org/10.1139/f04-016.

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This study compared sea lice (Lepeophtheirus salmonis) infestation rates on juvenile pink (Oncorhynchus gorbuscha) and chum (Oncorhynchus keta) salmon in five nearshore areas of the British Columbia coast selected on the basis of proximity to salmon farms. A 10-week study in the Broughton Archipelago found sea lice were 8.8 times more abundant on wild fish near farms holding adult salmon and 5.0 times more abundant on wild fish near farms holding smolts than in areas distant from salmon farms. We found that 90% of juvenile pink and chum salmon sampled near salmon farms in the Broughton Archipe

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Middlemas, S. J., J. A. Raffell, D. W. Hay, M. Hatton-Ellis, and J. D. Armstrong. "Temporal and spatial patterns of sea lice levels on sea trout in western Scotland in relation to fish farm production cycles." Biology Letters 6, no. 4 (2010): 548–51. http://dx.doi.org/10.1098/rsbl.2009.0872.

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The relationship between aquaculture and infestations of sea lice on wild sea trout ( Salmo trutta ) populations is controversial. Although some authors have concluded that there is a link between aquaculture and lice burdens on wild fish, others have questioned this interpretation. Lice levels have been shown to be generally higher on Atlantic salmon farms during the second years of two-year production cycles. Here we investigate whether this pattern relates to lice burdens on wild fish across broad temporal and spatial axes. Within Loch Shieldaig across five successive farm cycles from 2000

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Morton, Alexandra B., and Rob Williams. "First Report of a Sea Louse, Lepeophtheirus salmonis, Infestation on Juvenile Pink Salmon, Oncorhynchus gorbuscha, in Nearshore Habitat." Canadian Field-Naturalist 117, no. 4 (2003): 634. http://dx.doi.org/10.22621/cfn.v117i4.834.

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High infestation rates of the Sea Louse (Lepeophtheirus salmonis) have been reported on juvenile salmonids in Europe since 1989; however, this species has not been reported on juvenile Pacific salmonids until now. Magnitude of Sea Lice infestation was examined in 2001 on juvenile Pink Salmon (Oncorhynchus gorbuscha) migrating through a British Columbia archipelago. On average, the 751 juvenile Pink Salmon sampled weighed 2.25 g (± 0.039 SE), were infected with 11.3 (± 0.41 SE) Sea Lice per fish and 6.1 (± 0.24SE) Sea Lice per gram host weight. Fully 75.0% of fish were infected at loads equival

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Morton, Alexandra, Rick Routledge, Amy McConnell, and Martin Krkošek. "Sea lice dispersion and salmon survival in relation to salmon farm activity in the Broughton Archipelago." ICES Journal of Marine Science 68, no. 1 (2010): 144–56. http://dx.doi.org/10.1093/icesjms/fsq146.

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Abstract Morton, A., Routledge, R., McConnell, A., and Krkošek, M. 2011. Sea lice dispersion and salmon survival in relation to salmon farm activity in the Broughton Archipelago. – ICES Journal of Marine Science, 68: 144–156. The risk of salmon lice (Lepeophtheirus salmonis) transmission to wild juvenile Pacific salmon has spurred management change to reduce lice on salmon farms. We studied the abundance of planktonic lice preceding the juvenile salmon outmigration as well as the abundance of lice on juvenile pink (Oncorhynchus gorbuscha) and chum (Oncorhynchus keta) salmon in two distinct mig

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Peacock, Stephanie J., Martin Krkošek, Andrew W. Bateman, and Mark A. Lewis. "Estimation of spatiotemporal transmission dynamics and analysis of management scenarios for sea lice of farmed and wild salmon." Canadian Journal of Fisheries and Aquatic Sciences 77, no. 1 (2020): 55–68. http://dx.doi.org/10.1139/cjfas-2019-0036.

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Parasite transmission between farmed and wild salmon affects the sustainability of salmon aquaculture in Pacific Canada. Understanding and managing parasites in aquaculture is challenged by spatial and temporal variation in transmission dynamics. We developed a mechanistic model that connects sea louse (Lepeoptheirus salmonis) outbreak and control on farmed salmon (Salmo salar) to spatiotemporal dynamics of sea lice on migrating wild juvenile salmon (Oncorhynchus keta and Oncorhynchus gorbuscha). We fitted the model to time series of sea lice on farmed salmon and spatial surveys of juvenile wi

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Vollset, Knut Wiik, Elina Halttunen, Bengt Finstad, Ørjan Karlsen, Pål Arne Bjørn, and Ian Dohoo. "Salmon lice infestations on sea trout predicts infestations on migrating salmon post-smolts." ICES Journal of Marine Science 74, no. 9 (2017): 2354–63. http://dx.doi.org/10.1093/icesjms/fsx090.

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Abstract Impacts of sea lice (Lepeophtheirus salmonis or Caligus spp.) on wild salmonids is currently one of the most important issues facing management of fish farms in salmon producing countries in the northern hemisphere. Surveillance of sea lice on wild Atlantic salmon (Salmo salar) is often hampered by the ability to catch enough migrating post-smolts. Therefore, sea lice abundance on anadromous trout (Salmo trutta) is often used to infer sea lice abundance on migrating salmon post-smolt. However, the assumption that there is a relationship between the abundance of lice on salmon and trou

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Price, M. H. H., A. Morton, and J. D. Reynolds. "Evidence of farm-induced parasite infestations on wild juvenile salmon in multiple regions of coastal British Columbia, Canada." Canadian Journal of Fisheries and Aquatic Sciences 67, no. 12 (2010): 1925–32. http://dx.doi.org/10.1139/f10-105.

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Salmon farms are spatially concentrated reservoirs of fish host populations that can disrupt natural salmonid host–parasite dynamics. Sea lice frequently infect farm salmon and parasitize sympatric wild juvenile salmonids, with negative impacts on survival in Europe and Pacific Canada. We examined louse parasitism of wild juvenile chum salmon ( Oncorhynchus keta ) and pink salmon ( Oncorhynchus gorbuscha ) from three salmon farming regions in British Columbia (Finlayson, Broughton Archipelago, and Georgia Strait). We compared sites of low and high exposure to farms and included an area without

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Krkošek, Martin, and Ray Hilborn. "Sea lice (Lepeophtheirus salmonis) infestations and the productivity of pink salmon (Oncorhynchus gorbuscha) in the Broughton Archipelago, British Columbia, Canada." Canadian Journal of Fisheries and Aquatic Sciences 68, no. 1 (2011): 17–29. http://dx.doi.org/10.1139/f10-137.

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The spread of salmon lice ( Lepeophtheirus salmonis ) from salmon farms may threaten some wild salmon populations. Infestations of wild juvenile pink salmon ( Oncorhynchus gorbuscha ) have been associated with high mortality and population decline. Using stock–recruit data for pink salmon from the central coast of British Columbia, we analyzed how fishing mortality and spatial covariation combine with louse infestation to affect pink salmon population dynamics. The results indicate substantial coherence in survival at nested spatial scales — large-scale regional covariation and smaller scale c

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Riddell, Brian E., Richard J. Beamish, Laura J. Richards, and John R. Candy. "Comment on "Declining Wild Salmon Populations in Relation to Parasites from Farm Salmon"." Science 322, no. 5909 (2008): 1790.2–1790. http://dx.doi.org/10.1126/science.1156341.

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Krkošek et al. (Reports, 14 December 2007, p. 1772) claimed that sea lice spread from salmon farms placed wild pink salmon populations “on a trajectory toward rapid local extinction.” Their prediction is inconsistent with observed pink salmon returns and overstates the risks from sea lice and salmon farming.

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Shinn, A. P., B. A. Banks, N. Tange, et al. "Utility of 18S rDNA and ITS sequences as population markers for Lepeophtheirus salmonis (Copepoda: Caligidae) parasitising Atlantic salmon (Salmo salar) in Scotland." Contributions to Zoology 69, no. 1-2 (2000): 89–98. http://dx.doi.org/10.1163/18759866-0690102010.

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Genetic differentiation within the salmon louse Lepeophtheirus salmonis (Krøyer, 1837), was investigated by the sequencing of specific nucleotide regions. Partial sequences of the 18S ribosomal RNA gene and the ribosomal internal transcribed spacer (ITS-1) region from single sea lice were amplified by the polymerase chain reaction (PCR). Lice were collected from wild and farmed Atlantic salmon (Salmo salar L., 1758) from nine selected localities around the Scottish coastline. A 0.9kb fragment of the 18S ribosomal RNA gene was amplified and compared for several samples of lice which showed no o

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Dissertations / Theses on the topic "Sea lice; Salmon farms"

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Banks, Bryony Alison. "Genetic characterisation of populations of the ectoparasitic copepod Lepeophtheirus salmonis (Kroyer, 1837) in Scotland." Thesis, University of Stirling, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.391306.

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Penston, Michael. "Dynamics of planktonic larval sea louse distribution in relation to Atlantic salmon (Salmo salar L.) farms in a Scottish sea loch." Thesis, Available from the University of Aberdeen Library and Historic Collections Digital Resources, 2009. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?application=DIGITOOL-3&owner=resourcediscovery&custom_att_2=simple_viewer&pid=25799.

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Thesis (Ph.D.)--Aberdeen University, 2009.<br>Title from web page (viewed on June 26, 2009). With: Spatial and temporal distribution of Lepeophtheirus salmonis (Krøyer) larvae in a sea loch containing Atlantic salmon, Salmo salra L., farms on the north-west coast of Scotland / M. J. Penston ... et al. Journal of fish diseases. 2008: 31, 361-371. With: Reduced Lepeophtheirus salmonis larval abundance in a sea loch on the west coast of Scotland between 2002 and 2006 / Michael J. Penston, Colin P. Millar, Ian Davies. Dis. Aquat. Org. 2008: 81, 109-117. Includes bibliographical references.

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Wadsworth, Simon Leigh. "The control of sea lice Lepeophtheirus salmonis (Kroyer, 1837) (Copepoda: Caligidae) on Atlantic salmon Salmon salar L., production sites." Thesis, University of Aberdeen, 1998. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU532684.

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Sea lice Lepeophtheirus salmonis are the major pathogen affecting the salmon farming industry. Current methods of control, especially in the UK, are largely ineffective as they do not affect the chalimus stages of L. salmonis and are toxic to fish. Greater control of L. salmonis through improved management, more effective compounds, disease control and stock selection were examined. The epidemiology of L. salmonis on Atlantic salmon Salmo salar production sites was examined at a number of farms within Loch Sunart. Intensity of infection was found to be influenced by both management practices a

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Micallef, Giulia. "Understanding the molecular basis of dietary protection against sea lice in Atlantic salmon : application of proteomics and transcriptomics." Thesis, University of Aberdeen, 2013. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=204953.

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Yeast cell wall (YCW) extracts have long been regarded as beneficial supplements in aquaculture feeds, especially with respect to immunomodulation. Previous studies have shown that supplementing salmon diets with YCW extracts increases resistance to sea lice. During the series of three trials, different sea lice challenge models and YCW extracts were studied. In Trial 1, fish fed a diet containing 0.4% YCW #a exhibited a significant reduction in sea lice burden of 23% compared to the control diet. The skin and skin mucus samples from Trial 1 were hence used for high-throughput screening of alt

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Frenzl, Benedikt. "Understanding key factors associated with the infection of farmed Atlantic salmon by the salmon louse Lepeophtheirus salmonis." Thesis, University of Stirling, 2015. http://hdl.handle.net/1893/22320.

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The objective of the work described in the current thesis was to provide a better understanding of some of the key factors associated with sea louse, Lepeophtheirus salmonis, infection of farmed Atlantic salmon. In Chapter 2, initial work focused on establishing the vertical and horizontal distribution of sea lice copepodids and spatial patterns of on-farm infections. The louse distribution was investigated along the main current gradient across adjacent salmon production pens at three commercial sites. A depth profile for the distribution of larval lice was also established for the top 12 m o

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Liu, Yajie. "An analysis of the management and economics of salmon aquaculture." Thesis, University of British Columbia, 2008. http://hdl.handle.net/2429/323.

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Salmon aquaculture can be a potential solution to bridge the gap between declining capture fisheries and increasing seafood demand. However, the environmental impacts it creates have generated criticism. The overall objectives of this dissertation are to examine the economic consequences of environmental issues associated with salmon aquaculture, and to explore policy implications and recommendations for reducing environmental impacts. These objectives are addressed in five main analyses. The growth of salmon aquaculture is analyzed based on farmed salmon production in the four leadin

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Tsai, Hsin Yuan. "Genomic basis of growth traits and host resistance against sea lice (L. Salmonis) in Atlantic salmon (S. Salar)." Thesis, University of Edinburgh, 2017. http://hdl.handle.net/1842/28918.

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Background Atlantic salmon (Salmo Salar) is a key aquaculture species in several countries. Since its critical role in economic sector and scientific research, this species has been relatively extensively investigated, in comparison with other farmed and wild aquatic species. However, the genetic components associated with growth and fillet-related traits are lack consistency, and the issue of sea louse disease in both wild and famed salmon is still unsolved. Objectives Overall aim of this project was to understand the genetic basis of growth-related traits and host resistance to sea lice usin

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Sackville, Michael. "Of saline and sea lice : hydromineral challenges and osmoregulatory strategies associated with early ocean entry of juvenile pink salmon (Oncorhynchus gorbuscha)." Thesis, University of British Columbia, 2010. http://hdl.handle.net/2429/27218.

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Pink salmon (Oncorynchus gorbuscha) enter seawater (SW) following gravel emergence at a body mass of 0.2 g. Two hydromineral challenges associated with this remarkable early ocean entry were investigated: (1) initial exposure to a hyper-osmotic environment and (2) sea louse (Lepeophtheirus salmonis) parasitism. To survive SW, pink salmon were hypothesized to develop hypo-osmoregulatory abilities as larval alevins prior to natural SW entry as post-larval fry. To test this, alevins and fry were transferred from freshwater (FW) in darkness to SW under a simulated natural photoperiod (SNP). Ionor

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Nendick, Laura J. "The swimming performance and post-swim body ion concentrations of juvenile pink salmon, and the effect of parasitic sea lice on these parameters." Thesis, University of British Columbia, 2009. http://hdl.handle.net/2429/12630.

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Pink salmon (Oncorhynchus gorbuscha Walbaum) stocks in the Broughton Archipelago BC have seen a general decline in recent years. This is thought to be due to parasitism by sea lice, Lepeophtheirus salmonis (Krøyer, 1837), on pink salmon during early marine life stage. To investigate this, I measured swimming performance, an integrated measure of fish health, and post-swim body ion concentrations, a secondary stress response, of control and sea lice infected juvenile pink salmon (mass < 3.0 g). Using five different protocols (ranging in duration from 8 – 112 min), four constant acceleration te

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Gravil, Helen Ruth. "Studies on the biology and ecology of the free swimming larval stages of Lepeophtheirus Salmonis (Kroyer, 1838) and Caligus Elongatus Nordmann, 1832 (Copepoda: Caligidae)." Thesis, University of Stirling, 1996. http://hdl.handle.net/1893/2380.

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The study investigated biological and ecological parameters controlling and influencing the production and distribution of the free-swimming larval stages of Lepeophtheirus salmonis (Kroyer, 1838), and to a lesser extent Caligus elongatus Nordmann 1832, in the natural environment The reproductive output of L. salmonis was influenced by seasonal effects. The number of eggs produced per brood showed an inverse relationship with increasing temperature. The number of eggs per brood was also influenced by adult female body size (cephalothorax length), which in itself exhibited an inverse relationsh

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Books on the topic "Sea lice; Salmon farms"

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Semple, Walter G. Report on legal remedies in relation to sea trout protection and salmon farms in the west coast of Scotland. Bird Semple, 1996.

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Hogans, W. E. Infection dynamics of sea lice, Lepeophtheirus salmonis (Copepoda: Caligidae) parasitic on Atlantic Salmon (Salmo salar) cultured in marine waters of the Lower Bay of Fundy. Biological Station, 1995.

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Whatcom County (Wash.). Division of Buildings and Code Administration., ed. Northwest Sea Farms salmon net-pens. Department of Public Works, Division of Buildings and Code Administration, Whatcom County, Washington, 1989.

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Whatcom County (Wash.). Dept. of Public Works. Northwest Sea Farms Salmon net-pens Final EIS. 1989.

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Pauline, Mc Carney, and Marine Institute, eds. National survey of sea-lice (lepeophtheirus salmonis Krøyer and caligus elongatus Nordmann) on fish farms in Ireland. Marine Institute, 2002.

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Book chapters on the topic "Sea lice; Salmon farms"

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Saksida, Sonja M., Diane Morrison, Mark Sheppard, and Ian Keith. "Sea Lice Management on Salmon Farms in British Columbia, Canada." In Salmon Lice. Wiley-Blackwell, 2011. http://dx.doi.org/10.1002/9780470961568.ch8.

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Jackson, David. "Ireland: The Development of Sea Lice Management Methods." In Salmon Lice. Wiley-Blackwell, 2011. http://dx.doi.org/10.1002/9780470961568.ch6.

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Murray, Alexander G., Trish L. Amundrud, Michael J. Penston, Campbell C. Pert, and Stuart J. Middlemas. "Abundance and Distribution of Larval Sea Lice in Scottish Coastal Waters." In Salmon Lice. Wiley-Blackwell, 2011. http://dx.doi.org/10.1002/9780470961568.ch2.

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Stucchi, Dario J., Ming Guo, Michael G. G. Foreman, et al. "Modeling Sea Lice Production and Concentrations in the Broughton Archipelago, British Columbia." In Salmon Lice. Wiley-Blackwell, 2011. http://dx.doi.org/10.1002/9780470961568.ch4.

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Chang, Blythe D., Fred H. Page, Michael J. Beattie, and Barry W. H. Hill. "Sea Louse Abundance on Farmed Salmon in the Southwestern New Brunswick Area of the Bay of Fundy." In Salmon Lice. Wiley-Blackwell, 2011. http://dx.doi.org/10.1002/9780470961568.ch3.

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Finstad, Bengt, Pål A. Bjørn, Christopher D. Todd, et al. "The Effect of Sea Lice on Atlantic Salmon and other Salmonid Species." In Atlantic Salmon Ecology. Wiley-Blackwell, 2010. http://dx.doi.org/10.1002/9781444327755.ch10.

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Nowak, Barbara F., Melissa B. Martin, and Sebastián Boltaña. "Parasitic Crustaceans." In Fisheries and Aquaculture. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780190865627.003.0016.

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This chapter provides a brief overview of crustacean parasites that infect commercially important fish and shellfish. Crustaceans are a diverse group of arthropods, with over 60,000 species that are significant to the aquaculture and fisheries sector, including parasitic species affecting other crustaceans, mollusks, and fishes. This chapter focuses on parasitic caligid copepods (sea lice), cymothoid isopods, and pea crabs of high economic impacts on commercially important aquatic species. The biology of the parasites, their effects on their hosts, the epidemiology of the infections, and economic impacts of these groups are described. Chemical treatments and husbandry modifications as management options for a range of crustacean parasites are presented, which includes the use of cleaner fish to remove parasites, specially designed cages to reduce infestation of parasites, or moving farms to deeper waters. The utilization of crustacean parasites as marine pest controls is further discussed, with emphasis on either its potential benefits or the negative effects on native crab populations. Despite the continuous adverse impacts parasitic crustaceans have on aquaculture, the progressive understanding of their biology and ecology may eventually lead to mitigation, if not complete eradication, of the parasites.

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Conference papers on the topic "Sea lice; Salmon farms"

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Frank, K., L. C. Gansel, A. M. Lien, and J. Birkevold. "Effects of a Shielding Skirt for Prevention of Sea Lice on the Flow Past Stocked Salmon Fish Cages." In ASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/omae2013-10882.

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The effect of a shielding skirt, a tarpaulin mounted from the surface down to 5 meter depth around a net cage, on the flow pattern at a commercially stocked salmon cage was investigated. Dye was used as a tracer for water movement and the dye spreading was monitored using aerial images. Current meters were employed to investigate the flow close to the net inside and outside the cage. Tests were conducted with and without the shielding skirt. The focus was on the effectiveness of the shielding skirt to deflect water around the cage. This study shows that a shielding skirt can reduce horizontal

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Turner, Adam A., Dean M. Steinke, Ryan S. Nicoll, and Patrik Stenmark. "Comparison of Taut and Catenary Mooring Systems for Finfish Aquaculture." In ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/omae2018-78261.

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Finfish aquaculture has been expanding in areas like Norway and Canada over the last 20 years, and is projected to expand further in the next decades as the planet’s population and demand for seafood increases. Finding appropriate salmon farm sites is becoming increasingly difficult, as there are fewer protected nearshore locations available for development. As a result, there is interest in increased utilization of existing leases (i.e. permitted sites). These leases have a boundary in which the anchors and mooring lines must be contained. Reducing the footprint of the mooring arrangement wil

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Kristiansen, David, Pål Lader, Per C. Endresen, and Vegard Aksnes. "Numerical and Experimental Study on the Seakeeping Behavior of Floating Closed Rigid Fish Cages." In ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/omae2018-77254.

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The present paper addresses the seakeeping behavior of a rigid type of floating closed fish cages, with focus on effects of sloshing on the coupled motions and mooring loads. Closed cages have gained much attention recently as a strategy to avoid sea-lice infections in farming of Atlantic salmon. However, closed cages are novel structures and more knowledge is needed on the wave induced motions and coupling effects with sloshing for development of reliable closed cage structures to reduce risk for failure and possible escape of fish. In this paper, dedicated scaled model tests of closed cages

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