Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 42 for “"salmo salar"”.
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Repeat spawning of the Atlantic salmon (Salmo salar) in various salmon rivers in Iceland
Information on repeat spawning in Atlantic salmon stocks from eight various rivers in Iceland was analyzed, using data collected by the Institute of Freshwater Fisheries in Iceland. The rivers differ in characteristics as well as location based on bedrock and geographical area. Available data from …
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Assessing the welfare of adult Atlantic salmon, Salmo salar during commercial live-haul transport
… 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 …
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Dynamics of the atlantic salmon (Salmo salar L.) population of the River Foyle, Ireland
This study examines the dynamics of the Atlantic salmon (Salmo salar L.) population of the Foyle catchment in Ireland, through the analysis of long-term datasets and extensive field data. In chapter 1 the current conservation status of the salmon is discussed with particular reference to the Foyle. …
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Within- and among-individual variation in metabolic rate in juvenile Atlantic salmon, Salmo salar
… behaviour and aspects of performance. Atlantic salmon have been an important model for exploring relationships between growth performance, metabolic strategies and individual behaviour. Juvenile salmonid fish have been a particularly useful subject for exploring individual variation in …
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Variations annuelles du poids moyen des captures sportives de saumon atlantique Salmo salar (Linné) gaspésien
… pourcentage élevé de grands saumons atlantiques (Salmo salar) qui retournent dans ses rivières (deux hivers marins, trois hivers marins et plusieurs hivers marins) de l'Atlantique (Salmo salar). Les variations du poids moyen et du nombre de grands saumons dans les cours d'eau de Gaspé ont été …
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Mechanisms and consequences of hybridisation between Atlantic salmon (Salmo salar) and brown trout (Salmo trutta)
… 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 …
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Climate Change and Atlantic salmon (Salmo salar): Changes in Flow and Freshwater Habitat in the Burrishoole Catchment
… for the freshwater habitat of Atlantic salmon (Salmo salar) and the long-term sustainability of their population numbers. The Burrishoole catchment, a relatively small but productive salmon catchment (~90 km2) located on Ireland’s west coast, is used as a case study to investigate this. …
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The study of molecular variation in Atlantic salmon (Salmo salar L.) and brown trout (Salmo trutta L.)
… DNA loci were used here in three studies, one on Salmo salar and two on S. trutta. In the case of S. salar, the survival of native fish and non-natives from a nearby catchment, and their hybrids, were compared in a freshwater common garden experiment and subsequently in ocean ranching, with …
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Social network analysis of behavioural interactions influencing the development of fin damage in Atlantic salmon (Salmo salar)
The development of fin damage in Atlantic salmon parr was investigated using social network analysis of behavioural interactions occurring under different feeding and stocking conditions. Four separate experiments were carried out in which groups of fish were subjected to a long food restriction …
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The stress of moving out : physiological and behavioural effects of commercial transport on Atlantic salmon (Salmo salar) smolts
… controversy over environmental sustainability, salmon aquaculture in British Columbia is economically important for many coastal communities and is reported as being the largest agricultural export product for the province. This thesis examined the welfare status of commercially produced …
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Predicting how the juvenile life-stages of anadromous Atlantic salmon Salmo salar influence their migration phenology and marine survival.
Atlantic salmon, Salmo salar (hereafter ‘salmon’), is a species of high commercial, recreational, and cultural importance. Native to rivers of both sides on the North Atlantic basin, this species has experienced dramatic population declines since the 1970s. The reasons for this phenomenon are …
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From landscape to freshwater invertebrates: understanding the effects of peatland restoration on Atlantic Salmon (Salmo salar) habitat in the Flow Country
… ecology, particularly regarding Atlantic Salmon (Salmo salar) populations that inhabit many peatland-dominated upland river catchments. This study examines the effects of two common peatland restoration techniques, drain blocking and forest-to-bog, within the Flow Country blanket bog. We …
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La réponse immunitaire du saumon atlantique (Salmo Salar) suite à une infection par le virus de l'anémie infectieuse du saumon
… infecte le saumon de l'Atlantique d'élevage (Salmo salar) et entraîne une perte de revenus de plusieurs millions de dollars pour les salmoniculteurs. Bien que l'amélioration des pratiques de gestion et d'élevage au cours des dernières années ait permis de minimiser les pertes et le nombre …
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The allometry of territory size and metabolic rate as predictors of self-thinning in young-of-the-year Atlantic salmon (Salmo salar)
… density for young-of-the-year Atlantic salmon (Salmo salar) in Catamaran Brook, New Brunswick, throughout their first growing season. In general, the results were consistent with the predictions of the territory-size hypothesis since the observed densities were high enough to expect …
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An investigation of the impact of redd washout, fine sediment infiltration and variations in water chemistry during egg incubation on juvenile production of Atlantic salmon (Salmo salar L.)
… a west coast river system with a declining adult salmon stock as evidenced through seventy years of angling records. To our knowledge there is no published literature on the aquatic ecology of this river. This key objective of this work was to establish if current redd washout and variations in …
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Stofnsveiflur og hnignun Atlantshafslax, hvað veldur?
Stofnum Atlanshafslax (Salmo salar) hefur almennt farið hnignandi frá árinu 1980. Þrátt fyrir samdrátt í veiðum, hertar veiðireglur og aðgerðir til þess að bæta og/eða endurheimta búsvæði laxa í ferskvatni hefur stofnum haldið áfram að hnigna. Hækkandi dánartíðni laxa í hafi er talin vera megin …
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Evaluating the effects of rainbow smelt on native piscivores in freshwater systems with a special focus on walleye recruitment and larval bioenergetics
… withthree different piscivore species, Atlantic salmon (Salmo salar), lake trout (salvelinus namaycush) and walleye (Sander vitreus). Differences in larval rearing strategies were indentified as the most important factor in determining the nature of effects of rainbow smelt.In particular, larval …
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Sea lice infestation on wild salmonids in the southern part of the Icelandic Westfjords
Laxalús, Lepeophtheirus salmonis og grálús Caligus elongatus, eru náttúruleg sníkjudýr á laxfiskum í sjó. Lýsnar nærast á slímhúð, roði og blóði fiskanna og valda þannig streitu hjá þeim. Þær geta einar og sér valdið dauða fiska séu þær í miklum mæli en geta auk þess borið með sér aðra sýkla. …
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Loci microsatélites como marcadores genéticos para la mejora del rendimiento en acuicultura de especies marinas
… con gran interés económico: el salmón atlántico salmo salar l., el rodaballo scophtalmus maximus, y el camarón blanco litopenaeus schmitti. Los resultados obtenidos obtenidos demuestran que los loci microsatélites son útiles para el manejo de reproductores en las estaciones de cultivo a través …
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