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Dissertations / Theses on the topic 'Salmon'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Reece, P. "A digestive lipase from salmon (Salmo salar)." Thesis, University of Aberdeen, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.359635.

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A lipase has been partially purified from the bile of salmon (<i>Salmo salar</i>) with an apparent molecular size of 35 kDa and pI of pH 5.25. The enzyme was shown to preferentially cleave C20:5 and C18:4 fatty acids from the liver triacylglycerol of cod (<i>Gadus morhua</i>) as well as hydrolyse sterol and wax ester substrates. The enzyme was shown to hydrolyse substrate optimally at pH 7.1 in the presence of both 0.3M sodium chloride and low concentrations of bile alcohol sulphates. Sodium taurocholate could also partially activate the enzyme in the absence or at low concentrations of the al

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2

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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3

Volpe, John. "Ecology of Atlantic salmon (Salmo salar) in British Columbia." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/NQ62532.pdf.

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4

McGowan, Colin. "Genetic mapping in Atlantic salmon, Salmo salar, and brown trout, Salmo trutta." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/nq23108.pdf.

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5

Noguera, Patricia Alina. "In vivo and in vitro studies of Salmon Pancreas Disease Virus (SPDV) in Atlantic salmon (Salmo salar L.)." Thesis, University of Edinburgh, 2018. http://hdl.handle.net/1842/33257.

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Salmon Pancreas Disease Virus (SPDV) is the only viral species of the genus Alphavirus, family Togaviridae, affecting fish. SPDV induces two conditions historically recognised independently as Pancreas disease (PD) and Sleeping disease (SD), affecting Atlantic salmon (Salmo salar L) and rainbow trout (Oncorhynchus mykiss), respectively. Infection by SPDV can lead to clinical disease with characteristic acinar pancreatic necrosis and a range of myopathies of the skeletal and heart muscle. Mortality is not a necessary outcome of the disease and usually is not significant. However, affected fish

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6

Summers, David W. "Studies of the Atlantic salmon (Salmo salar L.) in Scotland." Thesis, University of Aberdeen, 1992. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=124309.

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Salmon catch data wee analysed from fisheries in or around the mouths of some rivers on the east coast of Scotland spanning the period from the late eighteenth century to the 1980s. It was found that the numbers and sea-age composition of salmon caught and the time of year that salmon were caught varied in the long-term in a coincident manner in different fisheries. These coincident changes in salmon catch data could not be explained by changes in the operation of fisheries and were therefore the results of changes in the population of salmon returning to the Scottish coast. The observed chang

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7

Spaulding, Benjamin W. "Endocrine Disruption in Atlantic Salmon (Salmo salar) Exposed to Pesticides." Fogler Library, University of Maine, 2005. http://www.library.umaine.edu/theses/pdf/SpauldingBW2005.pdf.

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8

Browman, Howard I. "Feeding behaviour in fry of Atlantic salmon, Salmo salar L." Thesis, McGill University, 1985. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=63129.

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9

Levontin, Polina. "Evaluating fisheries management strategies for Baltic salmon : (salmo salar L.)." Thesis, Imperial College London, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.443834.

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10

Tyedmers, Peter. "Salmon and sustainability, the biophysical cost of producing salmon through the commercial salmon fishery and the intensive salmon culture industry." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/NQ61187.pdf.

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11

Higgins, Peter J. "Growth, feeding and metabolism in juvenile Atlantic salmon (Salmo salar L.)." Thesis, University of Aberdeen, 1985. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU362531.

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Growth, feeding and metabolism in juvenile Atlantic salmon Salmo salar L. Growth, feeding and metabolism were studied during the juvenile growth phase of Atlantic salmon. Comparisons were made between the faster and slower growing members of sibling populations which formed the upper and lower modes of a bimodal growth distribution. Several new techniques were developed in order to investigate these parameters in small fish. Specific growth rates of marked individuals within the bimodal distribution followed the same pattern of development as the whole population, and appeared to be more close

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12

Hill, Aaron C. "Sedimentary legacy of sockeye salmon (oncorhynchus nerka) and climate change in an ultra-oligotrophic, glacially-turbid British Columbia nursery lake." CONNECT TO THIS TITLE ONLINE, 2007. http://etd.lib.umt.edu/theses/available/etd-05312007-075732/.

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13

Hamnes, Frøydis Bolme. "Size-dependent habitat use in juvenile Atlantic salmon (Salmo salar L.)." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for biologi, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-13153.

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14

Cauwelier, Eef. "The nature of intraspecific biodiversity in Atlantic salmon (Salmo salar L.)." Thesis, University of Aberdeen, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.445157.

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The nature of intraspecific biodiversity in the Atlantic salmon was examined, more particularly the issues related to mating between non-natives and natives, and the genetic basis of complex traits, which could be important to aquaculture. These issues were examined in parental, F<sub>1</sub>, BC<sub>1</sub> and F<sub>2</sub> crosses between extremely genetically differentiated populations, i.e. a non-anadromous Canadian and anadromous Scottish populations, and the experiments were carried out in a hatchery. Outbreeding depression, which is defined as the reduction in the offspring fitness cau

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15

Gani, Raymond. "Modelling environment dependent growth of juvenile Atlantic salmon, Salmo salar, L." Thesis, University of Strathclyde, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.248698.

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16

Thomaz, Diogo Miguel Pereira Fernandes. "Alternative life-history strategies in male Atlantic salmon (Salmo salar L.)." Thesis, University of Leicester, 1995. http://hdl.handle.net/2381/34249.

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In this thesis I looked at the choice of mating tactics in male Atlantic salmon by determining the fertilisation success of individuals adopting different mating behaviours. In this species, as in most salmonids, males can either become sexually mature early in the life cycle, as small freshwater juveniles called parr, or undergo a sea migration before maturing. The alternative behaviours are thought to be contingent on environmental and social circumstances, although some researchers see them as mixed evolutionarily stable strategies. Here, using the charomid cloning method I isolated eight h

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17

Diamond, Sian. "Mechanisms and consequences of hybridisation between Atlantic salmon (Salmo salar) and brown trout (Salmo trutta)." Thesis, University of East Anglia, 2012. https://ueaeprints.uea.ac.uk/42390/.

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Relatively little research has been done to investigate the way postcopulatory, prezygotic mechanisms act to isolate species at the level of the gamete. This thesis uses the naturallyhybridising, externally-fertilising system of Atlantic salmon, Salmo salar, and brown trout, S. trutta, to investigate mechanisms of hybridisation through sperm-egg interactions, much of which is poorly understood. Salmon and trout experience conspecific sperm precedence during in vitro sperm competition experiments, when sperm volumes and release times are equalised. This thesis firstly aimed to explore the dynam

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18

Lund, Bjørnås Kristine. "Modeling Atlantic salmon (Salmo salar) and brown trout (Salmo trutta) responses to river habitat alteration." Licentiate thesis, Karlstads universitet, Institutionen för miljö- och livsvetenskaper (from 2013), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-76559.

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Half the world’s river volume is affected by flow alterations and/or fragmentation, a figure that is likely to increase with the current global surge in hydropower development. At the same time, freshwater biodiversity is in rapid decline. In fluvial ecosystems, streamflow is a master variable, shaping riverine species’ habitat over space and time. Atlantic salmon (Salmo salar) and brown trout (S. trutta) are examples of species that need fluvial habitats for reproduction and juvenile rearing, and whose flow needs can come in conflict with hydropower production objectives. This necessitates to

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19

Grant, Stephanie Mary. "Production of astaxanthin by the yeast Phaffia rhodozyma." Thesis, Queen's University Belfast, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.324833.

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20

Rydevik, Magnus. "Smoltification and early sexual maturation in the Baltic salmon, Salmo salar L." Stockholm : Niversity of Stockholm, 1989. http://catalog.hathitrust.org/api/volumes/oclc/21828246.html.

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21

Zhou, Shengying. "Function of muscle adipocytes in Atlantic salmon, Salmo salar, exposed to hydrocarbons." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1996. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/NQ31538.pdf.

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22

Rivinoja, Peter. "Migration problems of Atlantic salmon (Salmo salar L.) in flow regulated rivers /." Umeå : Dept. of Aquaculture, Swedish University of Agricultural Sciences, 2005. http://epsilon.slu.se/2005114.pdf.

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23

Vasemägi, Anti. "Evolutionary genetics of Atlantic salmon (Salmo salar L.) : molecular markers and applications /." Umeå : Dept. of Aquaculture, Swedish Univ. of Agricultural Sciences, 2004. http://epsilon.slu.se/s324.pdf.

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24

Counter, Sarah-Louise. "The sustainability of Atlantic salmon (Salmo salar L.) in South West England." Thesis, University of Exeter, 2012. http://hdl.handle.net/10871/8203.

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Conservation studies have generally focused on the environmental and biological issues affecting the decline of a species. However, to ensure the sustainability of a species three aspects must be considered: biological, economic and sociological. This thesis focuses on a case study of salmon in the Exe catchment comprising three individual studies, and explores the temporal stability of the species across the South West region to assess the status of salmon in other catchments within the region. A panel of microsatellite markers modified from the West Virginia panel was utilised in exploring t

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25

Bale, Claire. "Acid episodes and the behavioural ecology of Atlantic salmon, Salmo salar L." Thesis, Cardiff University, 2007. http://orca.cf.ac.uk/54634/.

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Although the impacts of surface water acidification on Atlantic salmon (<italic>Salmo salar</italic> L.) and brown trout (<italic>Salmo trutta</italic> L.) are well described, factors affecting recovery following pollution abatement are poorly understood. Paradoxically, despite increasing average pH over the last two decades, stocking efforts to rehabilitate damaged populations have not been successful. One possible explanation is that average pH measurements mask the effects of episodic fluctuations during high flow when pH is transiently reduced, metal concentrations are elevated and some or

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26

Williams, Keith. "Nutrient transportation associated with the migrations of Atlantic salmon (Salmo salar L.)." Thesis, Cardiff University, 2007. http://orca.cf.ac.uk/55728/.

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Nutrients are essential in order that living matter can grow and reproduce successfully, and of particular importance are carbon (C), nitrogen (N) and phosphorus (P) (Stockner and Ashley 2003). C and N have a gas phase and are often readily available in freshwater ecosystems. P, however, does not have a gas phase, cannot be renewed and as such is often regarded as the element in shortest supply in most freshwater environments (Stockner and Ashley 2003). It should be noted, though, that other nutrients, for example silica, are also often of importance in freshwater ecosystems and that nutrients

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27

Leksell, Lina. "Early environmental effects on dominance in juvenile Atlantic salmon (Salmo salar L.)." Thesis, Karlstads universitet, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-55304.

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The earth’s climate is rapidly changing. With climate change currently altering the environment, water temperature is an important environmental factor that will have various effects on fishes since they are ectotherms. As the changes are expected to be greatest during winter, when salmonid fishes incubate their eggs, one might expect substantial effects on egg development. In this experiment pairs of fish, matched by length, were compared. For each pair, one fish had experienced ambient cold temperatures (cold treatment) during embryogenesis and the other elevated temperatures (warm treatment

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28

Wang, Junwen. "Optimization and modeling of enzymatic hydrolysis of Atlantic salmon (Salmo salar) tissue /." Thesis, Connect to this title online; UW restricted, 2000. http://hdl.handle.net/1773/5307.

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29

Butler, Ricky. "In vitro modelling of the immunological interactions between the salmon louse, Lepeophtheirus salmonis (Kroyer, 1837), and the Atlantic salmon, Salmo salar (L., 1758)." Thesis, University of Stirling, 2001. http://hdl.handle.net/1893/21841.

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Atlantic salmon, SaI1M salar. L., have been shown to be more susceptible to infections by the caligid copepod Lepeophtheirus salmonis (Kreyer, 1837) than other salmonid species. Atlantic salmon exhibit a reduced cellular immune response to the attached parasite which has led to the hypothesis of the presence of sea louse associated compounds that depressed the fish's normally efficient inflammatory mechanisms. The aim of the current study was to test this hypothesis. A biochemically defmed in vitro culture system was developed that would allow collection of the secreted/excreted products of th

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30

Herath, Tharangani K. "Cellular and molecular pathogenesis of Salmonid alphavirus 1 in Atlantic salmon Salmo salar L." Thesis, University of Stirling, 2010. http://hdl.handle.net/1893/2325.

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Salmonid alphaviruses (SAV) are a group of viruses that have recently emerged as a serious threat to the salmonid aquaculture industry in Europe. Over recent years, diseases caused by SAV have severely hampered the Scottish, Irish and Norwegian Atlantic salmon industry, and are considered to be among the major economically important viral diseases affecting the industry at present. Amongst the six subtypes characterised so far, Salmonid alphavirus 1 (SAV1) causes severe pathology in the heart, pancreas and the skeletal muscle of Atlantic salmon leading to death and growth retardation in the af

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31

Barbour, Andrew J. S. "The transition of adult Atlantic salmon (Salmo salar L.) from saltwater to freshwater." Thesis, University of Aberdeen, 1985. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU362766.

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Aspects of the behaviour of adult Atlantic salmon in estuaries, while on their spawning migration has been investigated using a salinity telemetric system. Eighteen fish were tracked in total in different Scottish estuaries. Studies involving the displacement of salmon from freshwater back into higher salinities on the River North Esk, Montrose showed fast movement through the estuary back into freshwater (5h), movement being initiated by the sensing of low salinities or the start of the flood tide. Tracking in the Dornoch Firth at Bonar Bridge (a channel type estuary) showed fish maintaining

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32

Tang, Stephen. "Assessing the welfare of adult Atlantic salmon, Salmo salar during commercial live-haul transport." Thesis, University of British Columbia, 2008. http://hdl.handle.net/2429/512.

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I used physiological stress as in indicator of welfare of adult Atlantic salmon during transport onboard a commercial live-haul vessel, the Sterling Carrier under actual operational conditions. This state-of-the-art vessel incorporates both flow-thru (open-hold) and re-circulating (closed-hold) live-hold configurations to safely transport fish under diverse environmental conditions. Measurements of bulk oxygen uptake rates (bulk MO₂) for fish masses ranging from 20 to 40 tons during open-hold transports (n=89) revealed a slightly elevated bulk MO₂ that was comparable to routine bulk MO₂ measu

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33

Dehler, Carola. "The intestinal microbes of Atlantic salmon (Salmo salar) : implications for gut health and nutrition." Thesis, University of Aberdeen, 2017. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=231927.

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The aquaculture of Atlantic salmon is a fast-growing industry that has drastically increased over the last decades. Traditionally, diets for Atlantic salmon contained wild sources fishmeal and fish oil but alternatives from plants are increasingly popular substitutes. Although fish do perform well on plant rich diets in terms of growth, carnivorous fish have not evolved to cope with many anti-nutritional factors and other plant derived chemicals. In recent years the importance of intestinal microbes to the health of humans has been established by profiling the microbiota using 16S rRNA as phyl

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34

Cross, Alison Danielle. "Early marine growth and consumption demand of juvenile pink salmon in Prince William Sound and the northern coastal Gulf of Alaska /." Thesis, Connect to this title online; UW restricted, 2006. http://hdl.handle.net/1773/5314.

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35

Steel, E. Ashley. "In-stream factors affecting juvenile chinook salmon migration /." Thesis, Connect to this title online; UW restricted, 1999. http://hdl.handle.net/1773/6371.

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36

Hamon, Troy R. "The role of natural and sexual selection in local adaptation of spawning behavior and morphology in sockeye salmon, Oncorhynchus nerka /." Thesis, Connect to this title online; UW restricted, 2001. http://hdl.handle.net/1773/5379.

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37

Berrill, Iain Kevin. "Environmental influences on growth, maturation and smoltification in Atlantic salmon parr, Salmo salar." Thesis, University of Stirling, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.720353.

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38

Hammond, Gregory Elliott. "Genetic variability and population differentiation in Atlantic salmon (Salmo salar) from New Brunswick." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0018/MQ57292.pdf.

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39

Côté, Michelle. "Isolation and charaterization of the carotenoid-binding protein in Atlantic salmon (Salmo salar)." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0029/MQ63497.pdf.

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40

Simard, Nathalie C. "Development of a DNA vaccine against Renibacterium salmoninarum in Atlantic salmon (Salmo salar)." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0031/MQ65519.pdf.

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41

Eriksson, Torleif. "Migratory behaviour of Baltic salmon (Salmo salar L.) : adaptive significance of annual cycles." Doctoral thesis, Umeå universitet, Ekologi och geovetenskap, 1988. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-100715.

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This thesis evaluates the adaptive significance of annual cycles on the migratory behaviour of Baltic salmon (Salmo salar L.). The studies have included field experiments as well as laboratory studies gf maturity and migratory behaviour patterns of smolts and postsmolts mainly from the Angerman river population. Contrasting to the phenotypical elasticity in life-history traits, Baltic salmon was found to have a rather strict temporal organization of their annual behavioural patterns. Two year old smolted Baltic salmon showed drastic differences in migratory behaviour when compared in tanks con

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42

Finn, Fia. "Risk taking and downstream migration in hatchery reared Atlantic salmon (Salmo salar) smolt." Thesis, Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-108496.

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Individual variation and limited plasticity in behavior are factors that have been shown to shape populations and determine how well individuals are doing in different stages of life. When salmon transform from parr to smolt and start the migration out to sea many factors together make an individual successful. The hypothesis of this study was that the boldness of individual smolt (1 and 2 year olds) is correlated to their inclination to migrate downstream. The study also investigated difference in boldness and migration tendency between 1- and two year old smolt. Today, some hatcheries releas

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43

Simpson, Anna L. "Investigation of the factors influencing maturation in Atlantic salmon, Salmo salar L., parr." Thesis, University of Glasgow, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.390441.

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44

Plant, Karen Patricia. "Studies on resistance to infectious pancreatic necrosis virus in Atlantic salmon (Salmo salar)." Thesis, University of Stirling, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.365033.

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45

Gorman, Catherine. "Assessing the performance of captive bred Atlantic salmon, Salmo salar, in wild populations." Thesis, Queen's University Belfast, 2014. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.676480.

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The impact of Atlantic salmon S. salar farm escapes/intentional releases of non-native salmon and stocking of fertile farm/hatchery reared individuals on the genetic integrity, fitness and long-term viability of wild populations has been the focus of considerable debate. In this study, the consequences of both a S. salar supplemental stocking programme and the long-term consequences of farm escapes are assessed. AS. salar supplemental stocking programme was established in 1996 in the River Bush, Northern Ireland, in an effort to increase the diminishing adult returns. Capitalising on this prog

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46

Guy, Derrick Richard. "Genetic resistance to infectious pancreatic necrosis virus in pedigreed atlantic salmon (Salmo salar)." Thesis, University of Edinburgh, 2011. http://hdl.handle.net/1842/5293.

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Infectious Pancreatic Necrosis (IPN), due to infection with the IPN virus (IPNv), continues to cause heavy mortalities and is endemic across the major Atlantic salmon farming regions of the world. Prevalances of 0.3-0.8 or more at the freshwater stage and 0.05 to 0.3 in the seawater phase of production are typical. Partially effective injectable vaccines are available against seawater IPN but biosecurity measures remain the main methods of control. To explore the feasibility of selecting salmon for resistance to IPN, a selective breeding program was initiated in 1996, including a series of fie

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47

Clokie, Benjamin Gregory James. "Impact of lighting conditions on the developmental physiology of Atlantic salmon (Salmo salar)." Thesis, University of Stirling, 2017. http://hdl.handle.net/1893/27240.

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The Atlantic salmon (Salmo salar) lifecycle is punctuated by distinct ontogenic stages which are routinely manipulated commercially by photoperiod regimes to enable year-round production. As such, light plays a critical role throughout the production cycle, however, it remains poorly characterised and light spectrum and intensity have not been defined optimally yet. This thesis was therefore set out to test the effects of narrow bandwidth light (Blue-λ(max) 444 nm, Green-λ(max) 523 nm, Red-λ(max) 632 nm and White) and intensity in freshwater (FW). Fry-parr development, out

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48

Rawlings, Claire E. "Rhythmic stomach fullness in Atlantic salmon (Salmo salar L.) and the influencing variables." Thesis, University of Stirling, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.261731.

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49

Roy, William J. "Vitamin E nutrition and pancreas disease in farmed Atlantic salmon (Salmo salar L.)." Thesis, University of Stirling, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.294027.

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50

Turnbull, James F. "Studies on dorsal fin rot in farmed Atlantic salmon (Salmo salar L.) parr." Thesis, University of Stirling, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.317643.

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