Academic literature on the topic 'Perca fluviatilis'

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Journal articles on the topic "Perca fluviatilis"

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Wirtz, S., and P. Steinmann. "Sperm characteristics in perch Perca fluviatilis L." Journal of Fish Biology 68, no. 6 (June 2006): 1896–902. http://dx.doi.org/10.1111/j.1095-8649.2006.01065.x.

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Hogstrand, Christer, and Carl Haux. "A radioimmunoassay for perch (Perca fluviatilis) metallothionein." Toxicology and Applied Pharmacology 103, no. 1 (March 1990): 56–65. http://dx.doi.org/10.1016/0041-008x(90)90262-s.

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Karås, Peter. "Recruitment of perch (Perca fluviatilis L.) from Baltic coastal waters." Archiv für Hydrobiologie 138, no. 1 (November 29, 1996): 99–121. http://dx.doi.org/10.1127/archiv-hydrobiol/138/1996/99.

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Zapletal, Tomáš, Zdeněk Adámek, Pavel Jurajda, Kevin Roche, Lucie Všetičková, and Jan Mareš. "Consumption of plant material by perch (Perca fluviatilis)." Folia Zoologica 65, no. 2 (July 2016): 95–97. http://dx.doi.org/10.25225/fozo.v65.i2.a3.2016.

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Migaud, Herve, Jean-Noel Gardeur, Patrick Kestemont, and Pascal Fontaine. "Off-Season Spawning of Eurasian Perch Perca Fluviatilis." Aquaculture International 12, no. 1 (2004): 87–102. http://dx.doi.org/10.1023/b:aqui.0000017190.15074.6c.

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GYLLENSTEN, ULF, NILS RYMAN, and GUNNAR STÅHL. "Monomorphism of allozymes in perch (Perca fluviatilis L.)." Hereditas 102, no. 1 (February 14, 2008): 57–61. http://dx.doi.org/10.1111/j.1601-5223.1985.tb00465.x.

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Furlan, Elise M., and Dianne Gleeson. "Environmental DNA detection of redfin perch, Perca fluviatilis." Conservation Genetics Resources 8, no. 2 (March 7, 2016): 115–18. http://dx.doi.org/10.1007/s12686-016-0523-1.

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Shukerova, S., D. Kirin, and V. Hanzelová. "Endohelminth communities of the perch, Perca fluviatilis (Perciformes, Percidae) from Srebarna Biosphere Reserve, Bulgaria." Helminthologia 47, no. 2 (June 1, 2010): 99–104. http://dx.doi.org/10.2478/s11687-010-0016-9.

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AbstractAltogether 180 specimens of Perca fluviatilis (L.) from Srebarna Lake, North-eastern Bulgaria, were examined for helminths during spring, summer and autumn of 2005 – 2006. Of them, 143 (79.4 %) perch were infected with helminths. Thirteen helminth species were found: metacercariae of Bolbophorus confusus, Diplostomum pseudospathaceum, D. spathaceum, Ichthyocotylurus pileatus, Posthodiplostomum cuticola and Tylodelphys clavata; cestode Proteocephalus percae; acantocephalans Acanthocephalus anguillae and A. lucii and nematode larvae Contracaecum microcephalum, Eustrongilides excisus, E. tubifex and Rhaphidascaris acus. The digenean T. clavata was dominant species of the perch component community. Little seasonal differences were found in the prevalence, abundance and mean infection of helminths. Eustrongilides tubifex reported from the territory of Bulgaria for the first time, represent the new geographical records and new species of Bulgarian helminth fauna.P. fluviatilis was reported as a new host record for two digeneans, namely Diplostomum pseuspathaceum and Posthodiplostomum cuticola, the cestode Proteocephalus percae, the acantocephalan Acantocephalus anguillae and the nematodes Contracaecum microcephalum and E. tubifex from the territory of Bulgaria. P. fluviatilis was reported as a new host record for D. pseudospathaceum, P. cuticola, C. microcephalum and E. tubifex from Balkan peninsula.
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Stejskal, Vlastimil, Tomáš Policar, Jiří Křišťan, Jan Kouřil, and Jitka Hamáčková. "Fin condition in intensively cultured Eurasian perch (Perca fluviatilis)." Folia Zoologica 60, no. 2 (June 2011): 122–28. http://dx.doi.org/10.25225/fozo.v60.i2.a6.2011.

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Marnila, Pertti, and Esa-Matti Lilius. "Thermal acclimation in the perch (Perca fluviatilis L.) immunity." Journal of Thermal Biology 54 (December 2015): 47–55. http://dx.doi.org/10.1016/j.jtherbio.2015.01.002.

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Dissertations / Theses on the topic "Perca fluviatilis"

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Azzopardi, P. J. "Visually-mediated behaviour of the perch, Perca fluviatilis L." Thesis, University of Manchester, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.375058.

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Linløkken, Arne. "Population ecology of perch (Perca fluviatilis) in boreal lakes." Doctoral thesis, Karlstads universitet, Avdelningen för biologi, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-1645.

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I studied the effects of temperature, pH, competition and predation on Eurasian perch (Perca fluviatilis) in 30 lakes in Norway during 1981-2001. The study lakes were situated in two different areas in southern Norway; four lakes in Aust-Agder county in southernmost Norway were explored during 1981-1984 and 26 lakes in Hedmark county in south-eastern Norway were investigated during 1992-2001. The study lakes varied considerably in pH, temperature, fish species composition, and perch abundance and size composition. In addition to field surveys, behavioural studies of perch were conducted at Karlstad University in 2006-2007. The field studies revealed that temperature affected recruitment of perch as strong year-classes of perch generally occurred in summers with high temperatures. Temperature also affected perch behaviour as indicated by the low gillnet catches (CPUE) of perch atlow temperature. This effect on CPUE was also supported by results from the aquaria experiments, where swimming and feeding activity of perch was low at low temperature. In a study of four lakes, growth was positively related to temperature in the lake with an allopatric perch population, but not in three lakes where perch occurred sympatrically with roach. pH also affected recruitment. In the four lakes in Aust-Agder, one strong year-class of perch occurred in all lakes in a year with especially high pH in spring and early summer. Adult mortality was also affected by pH, as old perch were less abundant in lakes with late spring pH=5.5-5.8 than in lakes with pH<5.5 and pH>5.8. The size and growth of adult perch were negatively affected by low pH, whereas abundance of large, potentially predatory perch was positively related to pH. The field studies indicated that roach influence perch populations. When coexisting with roach, perch were mainly littoral. In lakes where roach dominated (by number), there was no growth – temperature correlation, but there was such a correlation in lakes without roach. In lakes with sympatric roach, age-specific weight of perch and the growth of 2+ perch were negatively related to the proportion of roach in the gillnet catches. In the aquaria experiments, swimming and feeding activity of perch were lower than that of roach at all temperatures tested, and the difference was most pronounced at 4 and 8 °C. The aquaria experiments indicated that perch had a lower feeding efficiency and that they generally occupied positions closer to the bottom than roach.
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Strand, Åsa. "The growth and energetics of perch (Perca fluviatilis L.) in intensive culture." Umeå : Dept. of Wildlife, Fish, and Environmental Studies, Swedish University of Agricultural Sciences, 2009. http://epsilon.slu.se/200971.pdf.

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Sandberg, Linda. "Movement of the Eurasian perch (Perca fluviatilis) : Individual responses to abiotic factors." Thesis, Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-172751.

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Movement increases the probability for an individual to find food resources, but also increase the metabolic costs and exposure to predators. Hence, swimming behavior of fish is strongly coupled to fitness. Even though swimming activity has been studied in numerous laboratory settings, less is known about in situ activity and its dependence on abiotic factors (temperature, light conditions and barometric pressure). In this study I hypothesized that the activity increases with 1) increasing temperature and decrease with 2) barometric pressure variability and 3) average light conditions (h/day). In order to test the universality of the three hypotheses I also searched for size dependent effects. Fish activity (km/day) was measured in three lakes on individual fish (N=14-21 per lake) using acoustic telemetry providing tracking of fish at a time resolution from seconds to hours. A positive correlation between temperature and swimming activity in line with my first hypothesis was only observed in one of the lakes. The activity decreased with increased variability in barometric pressure in two of the lakes, a finding supporting my second hypothesis. Meanwhile increased light conditions (h/day) decreased activity in one of the lakes, as predicted by my third hypothesis. Nevertheless, none of my hypotheses were valid in all three of the lakes and perch reacted differently to the abiotic factors. One of the possible explanations for this is the importance of size differences as I noticed that the swimming activity differed between bigger and smaller individuals. My findings suggest that not only the temperature, barometric pressure and light conditions alone predict the activity in perch, but also the fish individual size, predation and the metabolic costs linked to thermoregulation.
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Heibo, Erik. "Life-history variation and age at maturity in Eurasian Perch (Perca fluviatilis L.) /." Umeå : Dept. of Aquaculture, Swedish Univ. of Agricultural Sciences, 2003. http://epsilon.slu.se/s290.pdf.

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Montgomery, Caron R. "The ecology of the perch (Perca fluviatilis L.) of lough Neagh, Northern Ireland." Thesis, University of Ulster, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.293887.

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Robak, Enbratt Emelie. "Eurasian perch (Perca fluviatilis) is negatively affected by lake browning in southern Sweden." Thesis, Högskolan i Halmstad, Akademin för ekonomi, teknik och naturvetenskap, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-42381.

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Climate change and human land use leads to browning of waters with decreased visual conditions. This impacts the fish community via changes in foraging ability and food chain efficiency. There are indications that brownification leads to decreased body size of the Eurasian perch (Perca fluviatilis) and that roach (Rutilus rutilus) are favoured over perch in brown lakes since roach is less dependent on its eyesight when foraging. The aim with this project is to examine how browning impacts the fish community in lakes in the south of Sweden and if browning reduces the size of perch in relation to their age. Data on water colour and length-at-age for 1+ and 5+ perch as well as the number of perch and roach captured was collected from 20 lakes. The data was examined using linear regression and paired samples T-test in SPSS. The results show that browning does reduce the body size of perch. Perch is smaller in relation to their age in brown lakes. There was however no evidence indicating that roach is favoured over perch in brown lakes, but there was a difference between the number of 1+ and 5+ perch caught in relation to roach. The perch: roach ration decreased for older fish (from 1+ to 5+) indicating that there is a difference in survival rate. Survival rate of perch was however not dependent on water colour or TOC. This shows that climate change and increased browning could result in changes of the fish community and size structure of fish.
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Johansson, Karl Magnus. "Fredningseffekter och rekryteringsproblem hos abborre (Perca fluviatilis) i Stockholms skärgård." Thesis, Högskolan på Gotland, Institutionen för kultur, energi och miljö, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:hgo:diva-853.

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Effects of fishery closure on perch was detected as female perch was on average 5 cm longer in closed areas compared to non-closed areas. This could be a result of larger individuals surviving as an effect of reduced fishing. No effect was detected on the reproduction rate of YOY (young of the year) perch. A zooplankton survey revealed less amounts of the most important plankton groups for YOY perch in areas with failed reproduction, though the difference was statistically insignificant. The distribution of YOY perch and YOY/adult stickleback differed completely in this study with no area where the two species are both present. It is sketchy to draw any conclusions from this data but it remains a field for further investigation. The reproduction problem is concentrated to the outer parts of the archipelago which confirms previous studies of the geographic extension.
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Pilinkovskij, Andrej. "Pūgžlių (Gymnocephalus cernuus) ir ešerių (Perca fluviatilis) mityba Dusios ežere." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2014. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2009~D_20140626_190748-78566.

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Dusios ežere 2008 metų ichtiologinių tyrimų metu sugautos 6 žuvų rūšys: ešerys, pūgžlys, stinta, lydeka, kuoja ir paprastoji aukšlė. Žuvų bendrijos branduolio rūšinė sudėtis ir toliau išlieka tokia pati – pūgžlys ir ešerys. Tačiau žymiai pakito šių rūšių santykinė biomasė – pūgžlio sumažėjo 1,7 karto ir dabar sudaro 27,6%, o ešerio padidėjo 1,8 karto ir sudaro 45,3%. Tiriant skirtingų amžinių grupių pūgžlių mitybą buvo nustatyta, kad Gammaridae ir Chironomidae šeimos atstovai yra visų amžinių grupių pagrindinis maistas. Tiriant skirtingų amžinių grupių ešerių mitybą buvo nustatyta, kad Gammaridae ir Chironomidae šeimos atstovai yra 1+ - 5+ amžinių grupių pagrindinis maistas, o Pisces yra vyresnių už 5+ amžinę grupę pagrindinis maistas. Ešerių mityboje pūgžlių aptikta nebuvo.
In the Dusia Lake in 2008 ichtiology studies caught 6 species of fish: perch, ruff, smelt, pike, roach and bleak simple. Fish species composition of the nucleus remains the same - ruff and perch. However, a significant change in the relative biomass of those species - ruff decreased 1.7 times and now represents 27.6%, and the perch has increased 1.8 times and is 45.3%. In the case of the different groups ever ruff diet, it was found that Gammaridae and Chironomidae family of representatives of all the basic food groups ever. In the case of the different groups ever perch diet was found that the Gammaridae and Chironomidae family is represented by 1 + - 5 + forever the main food groups, while Pisces is older than 5 + eternal group of the main food. Perch nutrition ruff was not detected.
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Gunnarsson, Thor. "Morphology and physiology of horizontal cells in the retina of the perch (Perca fluviatilis L.)." Thesis, Durham University, 1985. http://etheses.dur.ac.uk/7486/.

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Horizontal cells of the perch retina were studied with morphological and physiological techniques. Three types of cone horizontal cells were observed in Golgi preparations and they were called HI, H2, and H3 type cells, according to their morphological characteristics. Analysis of cone-horizontal cell contacts, revealed that HI cells contact red sensitive twin cones and green sensitive single cones, H2 cells contact red sensitive twin cones exclusively, and H3 cells contact exclusively green sensitive single cones. Inter connections of cones by basal processes were also examined; single cone basal processes were found to contact twin cone pedicles, and twin cone basal processes to contact other twin cone pedicles. The spectral sensitivity and spatial organization of horizontal cells were analysed by intracellular recordings. Two types of horizontal cell responses were observed; L-type responses that hyper polarized to light stimuli of all wavelengths, and R/G C-type responses that depolarized to red and hyperpolarized to green stimuli. Correlation of anatomical and morphological results suggests that HI and H2 cells generate L-type responses, and H3 cells generate R/G C-type responses. The R/G cells are hyperpolarized by signals from the green (P5352) sensitive cones and depolarized by a far red (650-670 nm) mechanism. Compared with the red cone pigment (P6I52), the L-type horizontal cell spectral sensitivity curve is narrow and with maximum (650 nm) displaced towards the red end of the spectrum (a pseudopigment spectral sensitivity curve), suggesting that an antagonistic interaction occurs between the two cone types, generating the horizontal cell spectral sensitivity function.
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Books on the topic "Perca fluviatilis"

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Ludgate, Benjamin G. Responses of fish communities to sustained removals of perch (Perca fluviatilis). 2nd ed. Wellington, N.Z: Dept. of Conservation, 2003.

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Eckmann, Reiner. Der Flussbarsch: Perca fluviatilis : Biologie, Ökologie und fischereiliche Nutzung. Hohenwarsleben: Westarp Wissenschaften, 2013.

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Montgomery, Caron R. The ecology of the Perch (Perca fluviatilis L.) of Lough Neagh, Northern Ireland. [s.l: The Author], 1990.

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Grundlagen für Modellsimulationen zur Bewirtschaftung des Barsches (Perca fluviatilis L.) im Bodensee. Bern: Das Bundesamt, 1987.

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Sonesten, Lars. Environmental Influence on Hg and 137 Cs Levels in Perch (Perca Fluviatilis L.) and Roach (Rutilus Rutilus L.) from Circumneutral Lakes (Comprehensive ... the Faculty of Science and Technology, 525). Uppsala Universitet, 2001.

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Book chapters on the topic "Perca fluviatilis"

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Frey, Joachim, Sarah E. Burr, and Thomas Wahli. "Design of an Immersion Vaccine Against Aeromonad Septicemia in Perch (Perca fluviatilis L.)." In Vaccine Design, 203–9. New York, NY: Springer New York, 2016. http://dx.doi.org/10.1007/978-1-4939-3389-1_14.

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Nikinmaa, Mikko, Annika Salama, and Heikki Tuurala. "Respiratory Effects of Environmental Acidification in Perch (Perca fluviatilis) and Rainbow Trout (Salmo gairdneri)." In Acidification in Finland, 929–40. Berlin, Heidelberg: Springer Berlin Heidelberg, 1990. http://dx.doi.org/10.1007/978-3-642-75450-0_45.

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Rask, M., and E. Virtanen. "Responses of Perch, Perca Fluviatilis L., from an Acidic and a Neutral Lake to Acidic Water." In Acidic Precipitation, 537–43. Dordrecht: Springer Netherlands, 1986. http://dx.doi.org/10.1007/978-94-009-3385-9_53.

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Granqvist, Mikaela, and Johanna Mattila. "The effects of turbidity and light intensity on the consumption of mysids by juvenile perch (Perca fluviatilis L.)." In Biology of the Baltic Sea, 93–101. Dordrecht: Springer Netherlands, 2004. http://dx.doi.org/10.1007/978-94-017-0920-0_9.

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Rask, M., H. Pöysä, P. Nummi, and C. Karppinen. "Recovery of the Perch (Perca Fluviatilis) in an Acidified Lake and Subsequent Responses in Macroinvertebrates and the Goldeneye (Bucephala Clangula)." In Acid rain 2000, 1367–72. Dordrecht: Springer Netherlands, 2001. http://dx.doi.org/10.1007/978-94-007-0810-5_75.

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Flesch, Anne, Gérard Masson, and Jean-Claude Moreteau. "Temporal distribution of perch (Perca fluviatilis L.) in a lake-reservoir (Moselle, France): analysis of catches with vertical gill nets." In Space Partition within Aquatic Ecosystems, 335–43. Dordrecht: Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-011-0293-3_31.

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Winfield, Ian J., D. Glen George, Janice M. Fletcher, and Diane P. Hewitt. "Environmental Factors Influencing the Recruitment and Growth of Underyearling Perch (Perca Fluviatilis) in Windermere North Basin, UK, from 1966 to 1990." In Management of Lakes and Reservoirs during Global Climate Change, 245–61. Dordrecht: Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-011-4966-2_17.

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Gillet, C., and J. P. Dubois. "A survey of the spawning of perch (Perca fluviatilis), pike (Esox lucius), and roach (Rutilus rutilus), using artificial spawning substrates in lakes." In Space Partition within Aquatic Ecosystems, 409–15. Dordrecht: Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-011-0293-3_39.

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Loro, R., and A. Mamcarz. "Coexistence of Introduced Perca Fluviatilis and Coregonus Lavaretus in Santa Croce Lake (Italy), and Propositions for Fishery Management." In Management and Ecology of Lake and Reservoir Fisheries, 161–69. Oxford, UK: Blackwell Publishing Ltd, 2007. http://dx.doi.org/10.1002/9780470995679.ch13.

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Ložys, Linas. "The growth of pikeperch (Sander lucioperca L.) and perch (Perca fluviatilis L.) under different water temperature and salinity conditions in the Curonian Lagoon and Lithuanian coastal waters of the Baltic Sea." In Biology of the Baltic Sea, 105–13. Dordrecht: Springer Netherlands, 2004. http://dx.doi.org/10.1007/978-94-017-0920-0_10.

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Conference papers on the topic "Perca fluviatilis"

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Filipenko, Serghei, Natalia Zubcov, Lilia Tihonenkova, and Elena Filipenko. "Промысловая ихтиофауна Кучурганского водохранилища и роль отдельных видов в накоплении металлов в водоеме-охладителе Молдавской ГРЭС." In International symposium ”Functional ecology of animals” dedicated to the 70th anniversary from the birth of academician Ion Toderas. Institute of Zoology, Republic of Moldova, 2019. http://dx.doi.org/10.53937/9789975315975.74.

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In the Kuchurgan reservoir there are 40 species of fish, of which in the control fish catches of 2007-2017 were recorded 13 commercial species. The most numerous species is the silver crucian - 22% of all fish in the catches, the remaining species occupy from 4.3 to 0.02%, which indicates the imbalance of the commercial herd of fish and the need for measures to improve the ichthyological situation in the reservoir. The accumulation of metals (V, Mo, Pb, Ni, Cd, Zn, Cu) in the organs and tissues of 3 species of fish of the Kuchurgan reservoir (Carassius auratus gibelio, Hypophthalmichthys nobilis Perca fluviatilis) was studied. In the species of fish studied, metals are the least concentrated in the gonads and muscles of the trunk, while their maximum concentrations are mostly noted in the gills and skin, with the exception of copper, which accumulates more in the liver of fish.
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