Academic literature on the topic 'Thymallus thymallus'

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Journal articles on the topic "Thymallus thymallus"

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Denham, K. L., and J. Long. "Occurrence of Gyrodactylus thymalli Zitnan, 1960 on grayling, Thymallus thymallus (L.), in England." Journal of Fish Diseases 22, no. 3 (1999): 247–52. http://dx.doi.org/10.1046/j.1365-2761.1999.00166.x.

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OLSTAD, K., A. P. SHINN, L. BACHMANN, and T. A. BAKKE. "Host-based identification is not supported by morphometrics in natural populations of Gyrodactylus salaris and G. thymalli (Platyhelminthes, Monogenea)." Parasitology 134, no. 14 (2007): 2041–52. http://dx.doi.org/10.1017/s0031182007003332.

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SUMMARYGyrodactylus salaris is a serious pest of wild pre-smolt Atlantic salmon (Salmo salar) in Norway. The closely related G. thymalli, originally described from grayling (Thymallus thymallus), is assumed harmless to both grayling and salmon. The 2 species are difficult to distinguish using traditional, morphometric methods or molecular approaches. The aim of this study was to explore whether there is a consistent pattern of morphometrical variation between G. salaris and G. thymalli and to analyse the morphometric variation in the context of ‘diagnostic realism’ (in natural populations). Sp
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PETTERSEN, RUBEN ALEXANDER, TOR ATLE MO, HAAKON HANSEN, and LEIF ASBJØRN VØLLESTAD. "Genetic population structure of Gyrodactylus thymalli (Monogenea) in a large Norwegian river system." Parasitology 142, no. 14 (2015): 1693–702. http://dx.doi.org/10.1017/s003118201500133x.

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SUMMARYThe extent of geographic genetic variation is the result of several processes such as mutation, gene flow, selection and drift. Processes that structure the populations of parasite species are often directly linked to the processes that influence the host. Here, we investigate the genetic population structure of the ectoparasite Gyrodactylus thymalli Žitňan, 1960 (Monogenea) collected from grayling (Thymallus thymallus L.) throughout the river Glomma, the largest watercourse in Norway. Parts of the mitochondrial dehydrogenase subunit 5 (NADH 5) and cytochrome oxidase I (COI) genes from
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Curtean-Bănăduc, Angela, and Doru Bănăduc. "Thymallus thymallus (Linnaeus, 1758), Ecological Status in Maramureş Mountains Nature Park (Romania)." Transylvanian Review of Systematical and Ecological Research 18, no. 2 (2016): 53–68. http://dx.doi.org/10.1515/trser-2015-0087.

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Abstract Thymallus thymallus is considered a species of significant protective importance within the Vişeu Watershed. The state of habitats characteristically inhabited by Thymallus thymallus within the Maramureş Mountains Nature Park is balanced between reduced (one third of the lotic sectors where the species was identified), average (one third) and good (one third). The excellent conservation status is currently missing for populations of this fish in the Vișeu Basin. Human impact types identified as contributing towards the decreasing state of Thymallus thymallus habitats and therefore pop
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Hrytsyniak, Ir, and T. Shvets. "European grayling (Thymallus thymallus Linnaeus, 1758). Thematic bibliography." Ribogospodarsʹka nauka Ukraïni., no. 2(68) (June 28, 2024): 132–63. http://dx.doi.org/10.61976/fsu2024.02.132.

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Purpose. Forming a thematic bibliographic list of English-language and Ukrainian-language publications, which highlight the issues of artificial breeding and cultivation of European grayling in Ukraine and abroad, the results of research into its population, ecological, genetic, physiological, biochemical, immunological and other characteristics. Methods. The complete and selective methods were applied in the process of the systematic search. The bibliographic core have been consisted of scientific publications in Ukrainian and English from the fund of the Institute of Fisheries NAAS Scientifi
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NYGREN, AXEL, BIRGIT NILSSON, and MARGARETE JAHNKE. "Cytological studies in Thymallus thymallus and Coregonus albula." Hereditas 67, no. 2 (2009): 269–74. http://dx.doi.org/10.1111/j.1601-5223.1971.tb02379.x.

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Plaisance, Laetitia, Tine Huyse, D. T. J. Littlewood, Tor A. Bakke, and Lutz Bachmann. "The complete mitochondrial DNA sequence of the monogenean Gyrodactylus thymalli (Platyhelminthes: Monogenea), a parasite of grayling (Thymallus thymallus)." Molecular and Biochemical Parasitology 154, no. 2 (2007): 190–94. http://dx.doi.org/10.1016/j.molbiopara.2007.04.012.

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MEIER, W., and T. WAHLI. "Viral haemorrhagic septicaemia (VHS) in grayling, Thymallus thymallus L." Journal of Fish Diseases 11, no. 6 (1988): 481–87. http://dx.doi.org/10.1111/j.1365-2761.1988.tb00747.x.

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Kodela, Tjaša, Dušan Jesenšek, and Simona Sušnik Bajec. "Reproduction parameters of hatchery reared grayling (Thymallus thymallus) females." Animal Reproduction Science 249 (February 2023): 107196. http://dx.doi.org/10.1016/j.anireprosci.2023.107196.

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Mallet, J. P., S. Charles, H. Persat, and P. Auger. "Growth modelling in accordance with daily water temperature in European grayling (Thymallus thymallusL.)." Canadian Journal of Fisheries and Aquatic Sciences 56, no. 6 (1999): 994–1000. http://dx.doi.org/10.1139/f99-031.

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The model of von Bertalanffy has been and is still widely used to model fish growth, mainly because of its good description of annual growth over the whole life span. However, it does not take into account a seasonal variability in growth rate, an important phenomenon that appears quite well correlated with water temperature fluctuations in temperate climates. In the present study, we demonstrated that it was possible to model such variations by including daily water temperature in the von Bertalanffy growth formula owing to the correlation between the growth coefficient k and water temperatur
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Dissertations / Theses on the topic "Thymallus thymallus"

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Lundberg, Fredrik. "Effekter av korttidsreglering och habitatrestaurering på simaktivitet hos harr (Thymallus thymallus)." Thesis, Karlstads universitet, Avdelningen för biologi, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-77702.

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Sammanfattning Användningen av korttidsreglering av vattenkraftverk kommer troligen öka då det är kostnadseffektivt och efterfrågan av förnybar energi är hög. Jag undersökte effekten av habitatkomplexitet och flödesändringar på simaktiviteten hos harr (Thymallus thymallus) i experimentella vattenrännor. Två olika habitat användes, ett beståendes av bara en grusbotten och en med större stenar placerade på grusbotten. I experimentet användes en behandling där flödet var stabilt och en där flödet varierade. Det fanns en signifikant interaktionseffekt mellan en ändring i flödet och habitat, som vi
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Hanfland, Sebastian. "Erfolgskontrolle von praxisüblichen Besatzmassnahmen mit Äschen (Thymallus thymallus) in ausgewählten südbayerischen Fliessgewässern." [S.l.] : [s.n.], 2002. http://deposit.ddb.de/cgi-bin/dokserv?idn=965587711.

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Hübner, Dirk. "Die Ablaich- und Interstitialphase der Äsche (Thymallus thymallus L.) Grundlagen und Auswirkungen anthropogener Belastungen /." [S.l. : s.n.], 2003. http://archiv.ub.uni-marburg.de/diss/z2004/0286/.

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Karlsson, Susanna. "HARR (THYMALLUS THYMALLUS) I VÄTTERBÄCKARNA : En studie om samband mellan bottenfauna och harrens förekomst." Thesis, Högskolan i Skövde, Institutionen för vård och natur, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-8222.

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Huml, Jana Vanessa. "Assessing adaptive genetic variation for conservation and management of the European grayling (Thymallus thymallus)." Thesis, Manchester Metropolitan University, 2017. http://e-space.mmu.ac.uk/619768/.

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In this PhD, functional genetic variation of European grayling (Thymallus thymallus) is assessed to inform conservation and management of the species. This study is the first to characterize immune variation at the Major Histocompatibility complex (MHC) in grayling. The MHC is a marker of high ecological relevance, because of the strong association between immunity and fitness. Taking advantage of advances in sequencing technology, an analytical pipeline optimized for high-throughput, efficient and accurate genotyping of multi-gene families in non-model species is presented. Immune genetic var
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Ajanovic, Nedzad. "Grayling (Thymallus thymallus) hatchery in the municipality of Bosanska Krupa in northwestern Bosnia and Herzegovina, a sustainable development pilot project." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0001/MQ42336.pdf.

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Sempeski, Philippe. "Sélection et utilisation de l'habitat par les jeunes stades de poissons d'eau courante : le modèle ombre commun (Thymallus thymallus L.)." Lyon 1, 1994. http://www.theses.fr/1994LYO10324.

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Une demarche eco-ethologique a servi de base a l'etude de la selection et de l'utilisation de l'habitat par les jeunes stades d'ombre commun (thymallus thymallus). Des campagnes de reperage, realises en milieu naturel sur plusieurs rivieres francaises, depuis la berge ou en plongee, de jour comme de nuit, associees a des descriptions de l'habitat physique (vitesse du courant, hauteur d'eau, granulometrie du substrat, forces de cisaillement pres du fond) ont permis la caracterisation des habitats successivement selectionnes par les ombrets. Qu'il s'agisse des sites de ponte choisis par les geni
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Berger, Cora Agnes [Verfasser]. "Salmo trutta und Thymallus thymallus in der Wupper - molekularbiologischer Nachweis von Saprolegnia spp. sowie Berechnungen zu Alter und Längenwachstum / Cora Agnes Berger." Wuppertal : Universitätsbibliothek Wuppertal, 2017. http://d-nb.info/1141193868/34.

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Bardonnet, Agnès. "Occupation de l'espace par les jeunes stades de salmonidés : vie sous graviers, émergence et dévalaison chez l'ombre commun, Thymallus thymallus, L. 1758." Lyon 1, 1989. http://www.theses.fr/1989LYO10198.

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Les habitats occupés par les jeunes stades de salmonidés se modifient fortement et rapidement au cours des premiers mois de vie. L'occupation de l'espace et les rythmes d'activité qui caractérisent les changements d'habitat ont été étudiés chez l'ombre commun Tthymallus thymallus). Il est apparu qu'un certain nombre de stratégies migratrices isole ce salmonidé de ponte printannière des autres salmonidés rhéophiles. Après la phase de résorption de la vésicule vitelline qui se réalise dans le milieu interstitiel, les alevins entrent dans le milieu d'eau libre avec un rythme d'émergence centré su
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Soewardi, Kadarwan. "Caractérisation des populations de Thymallus thymallus L. (poissons, salmonidés) et de Rutilus rutilus L. (poissons, cyprinidés) dans le réseau fluvial du Rhône : approche par l'étude du polymorphisme enzymatique." Lyon 1, 1988. http://www.theses.fr/1988LYO10110.

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Books on the topic "Thymallus thymallus"

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Baars, Martin. Die Asche: Thymallus thymallus. Westarp Wissenschaften, 2001.

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Wasserwirtschaft, Bayerisches Landesamt für, ed. Vermehrung und Laicheraufzucht der Äsche (Thymallus thymallus). Bayerisches Landesamt für Wasserwirtschaft, 2001.

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H, Armstrong Robert. A review of Arctic grayling studies in Alaska, 1952-1982. Institute of Arctic Biology, 1986.

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Walker, Jordan. Status of the Arctic Grayling (Thymallus arcticus) in Alberta. Alberta Sustainable Resource Development, 2005.

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Armstrong, Robert H. A review of Arctic grayling studies in Alaska, 1952-1982. Institute of Arctic Biology, University of Alaska-Fairbanks, 1986.

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Armstrong, Robert H. A review of Arctic grayling studies in Alaska, 1952-1982. Institute of Arctic Biology, University of Alaska-Fairbanks, 1986.

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Kaya, Calvin M. Status report on fluvial arctic grayling (Thymallus arcticus) in Montana. Montana Department of Fish, Wildlife and Parks, 1990.

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Havens, Alan C. Enhancement evaluation techniques for Arctic grayling (Thymallus arcticus) in Alaska, 1986. Alaska Dept. of Fish and Game, Division of Sport Fish, 1987.

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McLeay, D. J. Responses of arctic graling (Thymallus arcticus) to acute and prolonged exposure to Yukon placer miner sediment. s.n, 1987.

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Roth, Kent. Assessment of sport fishery resources in the Gulkana River with emphasis on Arctic grayling (Thymallus arcticus), 1986. Alaska Dept. of Fish and Game, Division of Sport Fish, 1987.

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Book chapters on the topic "Thymallus thymallus"

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Persat, H. "Threatened populations and conservation of the European grayling, Thymallus thymallus (L., 1758)." In Conservation of Endangered Freshwater Fish in Europe. Birkhäuser Basel, 1996. http://dx.doi.org/10.1007/978-3-0348-9014-4_23.

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Carl, Leon M., David Walty, and David M. Rimmer. "Demography of spawning grayling (Thymallus arcticus) in the Beaverlodge River, Alberta." In The Dynamics and Use of Lacustrine Ecosystems. Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-011-2745-5_24.

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"Thymallus tricolor." In Backcasts. University of Chicago Press, 2016. http://dx.doi.org/10.7208/chicago/9780226366609.003.0007.

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"Thymallus, n." In Oxford English Dictionary, 3rd ed. Oxford University Press, 2023. http://dx.doi.org/10.1093/oed/1068975165.

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"The Angler in the Environment: Social, Economic, Biological, and Ethical Dimensions." In The Angler in the Environment: Social, Economic, Biological, and Ethical Dimensions, edited by Werner Steffens. American Fisheries Society, 2011. http://dx.doi.org/10.47886/9781934874240.ch11.

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<i>Abstract</i> .—Based on the EU Council Directive 79/409/EEC on the Conservation of Wild Birds (1979), the number of great cormorants <i>Phalacrocorax carbo </i> has increased enormously in many European countries and the distribution of the species has extended considerably. In the middle of the last century, breeding sites were mainly limited to coastal areas; however, today, colonies have become numerous on inland waters. In Germany, for example, breeding pairs expanded from 794 in 1980 to about 23,000 in 2005, and the growth of the population still continues. In t
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