Abdel-Tawwab Mohsen, Mousa Mamdouh A.A., Ahmad Mohammad H., Sakr Saleh F.M. (2007): The use of calcium pre-exposure as a protective agent against environmental copper toxicity for juvenile Nile tilapia, Oreochromis niloticus (L.). Aquaculture, 264, 236-246  https://doi.org/10.1016/j.aquaculture.2006.12.020 Aebi H (1984): Catalase in vitro. Methods in Enzymology 105, 121–126.Ahmad Iqbal, Hamid Tariq, Fatima Masroor, Chand Hitendra S, Jain Swatantra K, Athar Mohammad, Raisuddin Sheikh (2000): Induction of hepatic antioxidants in freshwater catfish (Channa punctatus Bloch) is a biomarker of paper mill effluent exposure. Biochimica et Biophysica Acta (BBA) - General Subjects, 1523, 37-48  https://doi.org/10.1016/S0304-4165(00)00098-2AMIARD J, AMIARDTRIQUET C, BARKA S, PELLERIN J, RAINBOW P (2006): Metallothioneins in aquatic invertebrates: Their role in metal detoxification and their use as biomarkers. Aquatic Toxicology, 76, 160-202  https://doi.org/10.1016/j.aquatox.2005.08.015An Youn-Joo, Kampbell Donald H (2003): Total, dissolved, and bioavailable metals at Lake Texoma marinas. Environmental Pollution, 122, 253-259  https://doi.org/10.1016/S0269-7491(02)00291-9Bennani N., Schmid-Alliana A., Lafaurie M. (1996): Immunotoxic Effects of Copper and Cadmiun the Sea Bass Dicentrarchus Labrax. Immunopharmacology and Immunotoxicology, 18, 129-144  https://doi.org/10.3109/08923979609007115Benzie Iris F.F., Strain J.J. (1996): The Ferric Reducing Ability of Plasma (FRAP) as a Measure of “Antioxidant Power”: The FRAP Assay. Analytical Biochemistry, 239, 70-76  https://doi.org/10.1006/abio.1996.0292Bervoets Lieven, Blust Ronny (2003): Metal concentrations in water, sediment and gudgeon (Gobio gobio) from a pollution gradient: relationship with fish condition factor. Environmental Pollution, 126, 9-19  https://doi.org/10.1016/S0269-7491(03)00173-8Borvinskaya E. V., Smirnov L. P., Nemova N. N. (2013): An alpha class glutathione S-transferase from pike liver. Russian Journal of Bioorganic Chemistry, 39, 498-503  https://doi.org/10.1134/S1068162013050051 Carlberg I, Mannervik B (1975): Purification and characterization of flavoenzyme glutathione reductase from rat liver. Journal of Biological Chemistry 250, 5475–5480.Carvalho C.S., Fernandes M.N. (2006): Effect of temperature on copper toxicity and hematological responses in the neotropical fish Prochilodus scrofa at low and high pH. Aquaculture, 251, 109-117  https://doi.org/10.1016/j.aquaculture.2005.05.018Cazenave Jimena, Wunderlin Daniel Alberto, Hued Andrea Cecilia, Bistoni Maria de los Angeles (2005): Haematological parameters in a neotropical fish, Corydoras paleatus (Jenyns, 1842) (Pisces, Callichthyidae), captured from pristine and polluted water. Hydrobiologia, 537, 25-33  https://doi.org/10.1007/s10750-004-1638-z Celechovska O, Svobodova Z, Zlabek V, Macharackova B (2007): Distribution of metals in tissues of the common carp (Cyprinus carpio L.). Acta Veterinaria Brno 76, S93–S100.Cer�n Jose Joaquin, Mart�nez-Subiela Silvia (2004): An automated spectrophotometric method for measuring canine ceruloplasmin in serum. Veterinary Research, 35, 671-679  https://doi.org/10.1051/vetres:2004046Cho Young Sun, Lee Sang Yoon, Kim Keun-Yong, Bang In Chul, Kim Dong Soo, Nam Yoon Kwon (2008): Gene structure and expression of metallothionein during metal exposures in Hemibarbus mylodon. Ecotoxicology and Environmental Safety, 71, 125-137  https://doi.org/10.1016/j.ecoenv.2007.08.005Clark M. (2002): Calcitonin: characterisation and expression in a teleost fish, Fugu rubripes. Journal of Molecular Endocrinology, 28, 111-123  https://doi.org/10.1677/jme.0.0280111Dabrowski Konrad, Lee Kyeong-Jun, Guz Leszek, Verlhac Viviane, Gabaudan Jacques (2004): Effects of dietary ascorbic acid on oxygen stress (hypoxia or hyperoxia), growth and tissue vitamin concentrations in juvenile rainbow trout (Oncorhynchus mykiss). Aquaculture, 233, 383-392  https://doi.org/10.1016/j.aquaculture.2003.09.047Dautremepuits C (2002): Antioxidant response modulated by copper in healthy or parasitized carp (Cyprinus carpio L.) by Ptychobothrium sp. (Cestoda). Biochimica et Biophysica Acta (BBA) - General Subjects, 1573, 4-8  https://doi.org/10.1016/S0304-4165(02)00328-8De Boeck Gudrun, De Smet Hans, Blust Ronny (1995): The effect of sublethal levels of copper on oxygen consumption and ammonia excretion in the common carp, Cyprinus carpio. Aquatic Toxicology, 32, 127-141  https://doi.org/10.1016/0166-445X(94)00086-6Boeck G. De, Vlaeminck A., Blust R. (1997): Effects of Sublethal Copper Exposure on Copper Accumulation, Food Consumption, Growth, Energy Stores, and Nucleic Acid Content in Common Carp. Archives of Environmental Contamination and Toxicology, 33, 415-422  https://doi.org/10.1007/s002449900271De Boeck Gudrun, Vlaeminck Andrea, Balm Paul H.M., Lock Robert A.C., De Wachter Bart, Blust Ronny (2001): MORPHOLOGICAL AND METABOLIC CHANGES IN COMMON CARP, CYPRINUS CARPIO, DURING SHORT-TERM COPPER EXPOSURE: INTERACTIONS BETWEEN Cu2+ AND PLASMA CORTISOL ELEVATION. Environmental Toxicology and Chemistry, 20, 374-  https://doi.org/10.1897/1551-5028(2001)020<0374:MAMCIC>2.0.CO;2De Boeck Gudrun, Ngo Thi Thuy Huong, Van Campenhout Karen, Blust Ronny (2003): Differential metallothionein induction patterns in three freshwater fish during sublethal copper exposure. Aquatic Toxicology, 65, 413-424  https://doi.org/10.1016/S0166-445X(03)00178-4De Boeck Gudrun, Meeus Wouter, Coen Wim De, Blust Ronny (2004): Tissue-specific Cu bioaccumulation patterns and differences in sensitivity to waterborne Cu in three freshwater fish: rainbow trout (Oncorhynchus mykiss), common carp (Cyprinus carpio), and gibel carp (Carassius auratus gibelio). Aquatic Toxicology, 70, 179-188  https://doi.org/10.1016/j.aquatox.2004.07.001de Lafontaine Yves, Gagné François, Blaise Christian, Costan Georges, Gagnon Pierre, Chan H.M. (2000): Biomarkers in zebra mussels (Dreissena polymorpha) for the assessment and monitoring of water quality of the St Lawrence River (Canada). Aquatic Toxicology, 50, 51-71  https://doi.org/10.1016/S0166-445X(99)00094-6Dethloff Gail M., Bailey Howard C (1998): Effects of copper on immune system parameters of rainbow trout ( Oncorhynchus mykiss ). Environmental Toxicology and Chemistry, 17, 1807-1814  https://doi.org/10.1002/etc.5620170921 Di Giulio RT, Meyer JN (2008): Reactive oxygen species and oxidative stress. In: Di Giulio RT, Hinton DE (eds.): The Toxicology of Fishes. 1st ed. CRC Press, 273–325.Eyckmans Marleen, Celis Niko, Horemans Nele, Blust Ronny, De Boeck Gudrun (2011): Exposure to waterborne copper reveals differences in oxidative stress response in three freshwater fish species. Aquatic Toxicology, 103, 112-120  https://doi.org/10.1016/j.aquatox.2011.02.010Fabrik Ivo, Ruferova Zuzana, Hilscherova Klara, Adam Vojtech, Trnkova Libuse, Kizek Rene (2008): A Determination of Metallothionein in Larvae of Freshwater Midges (Chironomus riparius) Using Brdicka Reaction. Sensors, 8, 4081-4094  https://doi.org/10.3390/s8074081 Flohe L, Gunzler WA (1984): Assays of glutathione peroxidase. Methods in Enzymology 105, 114–121.Gill Tejendra S., Tewari Hema, Pande Jaishree (1992): Short- and long-term effects of copper on the rosy barb (Puntius conchonius Ham.). Ecotoxicology and Environmental Safety, 23, 294-306  https://doi.org/10.1016/0147-6513(92)90079-I Grosell M (2012): Copper. In: Wood CM, Farrell AP, Brauner CJ (eds.): Homeostasis and Toxicology of Essential Metals. 1st ed. Academic Press, Elsevier. 53–134. Grosell M, Marshall WS (2006): Ion transport, osmoregulation, and acid-base balance. In: Evans DH, Claiborne JB (eds.): The Physiology of Fishies. CRC Press, Taylor & Francis. 177–230.Grosell M.H., Hogstrand C., Wood C.M. (1998): Renal Cu and Na excretion and hepatic Cu metabolism in both Cu acclimated and non acclimated rainbow trout (Oncorhynchus mykiss). Aquatic Toxicology, 40, 275-291  https://doi.org/10.1016/S0166-445X(97)00026-XGrosell Martin, Nielsen Claus, Bianchini Adalto (2002): Sodium turnover rate determines sensitivity to acute copper and silver exposure in freshwater animals. Comparative Biochemistry and Physiology Part C: Toxicology & Pharmacology, 133, 287-303  https://doi.org/10.1016/S1532-0456(02)00085-6 Habig WH, Pabst MJ, Jakoby WB (1974): Glutathione S-transferases – first enzymatic step in mercapturic acid formation. Journal of Biological Chemistry 249, 7130–7139. Haluzova I, Modra H, Blahova J, Marsalek P, Siroka Z, Groch L, Svobodova Z (2010): Effects of subchronic exposure to Spartakus (prochloraz) on common carp Cyprinus carpio. Neuroendocrinology Letters 31, 105–113.Hansen B.H., Rømma S., Garmo Ø.A., Olsvik P.A., Andersen R.A. (2006): Antioxidative stress proteins and their gene expression in brown trout (Salmo trutta) from three rivers with different heavy metal levels. Comparative Biochemistry and Physiology Part C: Toxicology & Pharmacology, 143, 263-274  https://doi.org/10.1016/j.cbpc.2006.02.010Harris E. D. (1991): Copper Transport: An Overview. Experimental Biology and Medicine, 196, 130-140  https://doi.org/10.3181/00379727-196-43171BHassaan Mohamed S., Goda Ashraf M. A.-S., Mahmoud Soaad A., Tayel Safaa I. (2014): Protective effect of dietary vitamin E against fungicide copperoxychloride stress on Nile tilapia, Oreochromis niloticus (L.) fingerlings. International Aquatic Research, 6, -  https://doi.org/10.1007/s40071-014-0058-6Hernández Pedro P., Moreno Virginia, Olivari Francisco A., Allende Miguel L. (2006): Sub-lethal concentrations of waterborne copper are toxic to lateral line neuromasts in zebrafish (Danio rerio). Hearing Research, 213, 1-10  https://doi.org/10.1016/j.heares.2005.10.015Heydarnejad Mohammad Saeed, Khosravian-hemami Mojdeh, Nematollahi Amin, Rahnama Samira (2013): Effects of copper at sublethal concentrations on growth and biochemical parameters in rainbow trout ( Oncorhynchus mykiss ). International Review of Hydrobiology, 98, 71-79  https://doi.org/10.1002/iroh.201201443Jebali Jamel, Banni Mohamed, Gerbej Hamadi, Boussetta Hamadi, López-Barea Juan, Alhama José (2008): Metallothionein induction by Cu, Cd and Hg in Dicentrarchus labrax liver: Assessment by RP-HPLC with fluorescence detection and spectrophotometry. Marine Environmental Research, 65, 358-363  https://doi.org/10.1016/j.marenvres.2008.01.002 Jezierska B, Witeska M (2001): Metal Toxicity to Fish. 1st ed. University of Podlasie, Siedlce, Poland. 318 pp. Julliard AK, Saucier D, Astic L (1993): Effect of chronic low-level copper exposure on ultrastructure of the olfactory system in rainbow trout (Oncorhynchus mykiss). Histology and Histopathology 8, 655–672.Kamunde Collins, MacPhail Ruth (2008): Bioaccumulation and Hepatic Speciation of Copper in Rainbow Trout (Oncorhynchus mykiss) During Chronic Waterborne Copper Exposure. Archives of Environmental Contamination and Toxicology, 54, 493-503  https://doi.org/10.1007/s00244-007-9046-9Kandemir Sevket, Dogru M. Ilker, Orun Ibrahim, Dogru Arzu, Altas Levent, Erdogan Kenan, . Gulnihal Orun, . Nazmi Polat (2010): Determination of Heavy Metal Levels, Oxidative Status, Biochemical and Hematological Parameters in Cyprinus carpio L., 1758 from Bafra (Samsun) Fish Lakes. Journal of Animal and Veterinary Advances, 9, 617-622  https://doi.org/10.3923/javaa.2010.617.622Karan V., Vitorović S., Tutundžić V., Poleksić V. (1998): Functional Enzymes Activity and Gill Histology of Carp after Copper Sulfate Exposure and Recovery. Ecotoxicology and Environmental Safety, 40, 49-55  https://doi.org/10.1006/eesa.1998.1641 Kawauchi H, Sower SA, Moriyama S (2009): The neuroendocrine regulation of prolactin and somatolactin secretion in fish. In: Barnier NJ, Van Der Kraak G, Farrell AP, Brauner CJ (eds.): Fish Endocrinology. 1st ed. Academic Press, Elsevier. 198–235.Kondera Elzbieta, Witeska Malgorzata (2013): Cadmium and copper reduce hematopoietic potential in common carp (Cyprinus carpio L.) head kidney. Fish Physiology and Biochemistry, 39, 755-764  https://doi.org/10.1007/s10695-012-9738-6 Kono Y, Fridovich I (1982): Superoxide radical inhibits catalase. Journal of Biological Chemistry 257, 5751–5754.Kretzschmar M. (1996): Regulation of hepatic glutathione metabolism and its role in hepatotoxicity. Experimental and Toxicologic Pathology, 48, 439-446  https://doi.org/10.1016/S0940-2993(96)80054-6Kuz’mina V.V. (2011): The influence of zinc and copper on the latency period for feeding and the food uptake in common carp, Cyprinus carpio L.. Aquatic Toxicology, 102, 73-78  https://doi.org/10.1016/j.aquatox.2010.12.018Leaver M.J., George S.G. (1998): A piscine glutathione S-transferase which efficiently conjugates the end-products of lipid peroxidation. Marine Environmental Research, 46, 71-74  https://doi.org/10.1016/S0141-1136(97)00071-8Lebrun Jérémie D., Uher Emmanuelle, Tusseau-Vuillemin Marie-Hélène, Gourlay-Francé Catherine (2014): Essential metal contents in indigenous gammarids related to exposure levels at the river basin scale: Metal-dependent models of bioaccumulation and geochemical correlations. Science of The Total Environment, 466-467, 100-108  https://doi.org/10.1016/j.scitotenv.2013.07.003Lushchak Volodymyr I. (2011): Environmentally induced oxidative stress in aquatic animals. Aquatic Toxicology, 101, 13-30  https://doi.org/10.1016/j.aquatox.2010.10.006Lushchak Volodymyr I., Bagnyukova Tetyana V., Husak Victor V., Luzhna Lidiya I., Lushchak Oleh V., Storey Kenneth B. (2005): Hyperoxia results in transient oxidative stress and an adaptive response by antioxidant enzymes in goldfish tissues. The International Journal of Biochemistry & Cell Biology, 37, 1670-1680  https://doi.org/10.1016/j.biocel.2005.02.024 Luza SC, Speisky HC (1996): Liver copper storage and transport during development: implications for cytotoxicity. The American Journal of Clinical Nutrition 63, 812S–820S.Mansour S (): Ecotoxicological Studies. 3. Heavy metals contaminating water and fish from Fayoum Governorate, Egypt. Food Chemistry, 78, 15-22  https://doi.org/10.1016/S0308-8146(01)00197-2Maracine Magda, Segner Helmut (1998): Cytotoxicity of metals in isolated fish cells: Importance of the cellular glutathione status. Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology, 120, 83-88  https://doi.org/10.1016/S1095-6433(98)10013-2 Mikulikova I, Modra H, Blahova J, Marsalek P, Groch L, Siroka Z, Kruzikova K, Jarkovsky J, Littnerova S, Svobodova Z (2011): The effects of Click 500 SC (terbuthylazine) on common carp Cyprinus carpio under (sub)chronic conditions. Neuroendocrinology Letters 32, 15–24. Moon TW (2001): Glucose intolerance in teleost fish: face or fiction? Comparative Biochemistry and Physiology B – Biochemistry and Molecular Biology 129, 243–249.Muhvich Ann G, Jones Raymond T, Kane Andrew S, Anderson Robert S, Reimscheussel Renate (1995): Effects of chronic copper exposure on the macrophage chemiluminescent response and gill histology in goldfish (Carassius auratusL.). Fish & Shellfish Immunology, 5, 251-264  https://doi.org/10.1006/fsim.1995.0025Nespolo R. F., Rosenmann M. (2002): Intraspecific allometry of haematological parameters in Basilichthys australis. Journal of Fish Biology, 60, 1358-1362  https://doi.org/10.1111/j.1095-8649.2002.tb01732.xOliva Milagrosa, José Vicente Juan, Gravato Carlos, Guilhermino Lucia, Dolores Galindo-Riaño María (2012): Oxidative stress biomarkers in Senegal sole, Solea senegalensis, to assess the impact of heavy metal pollution in a Huelva estuary (SW Spain): Seasonal and spatial variation. Ecotoxicology and Environmental Safety, 75, 151-162  https://doi.org/10.1016/j.ecoenv.2011.08.017Pandey, I. Ahmad, S. Parvez, B. Bin S. (2001): Effect of Endosulfan on Antioxidants of Freshwater Fish Channa punctatus Bloch: 1. Protection Against Lipid Peroxidation in Liver by Copper Preexposure. Archives of Environmental Contamination and Toxicology, 41, 345-352  https://doi.org/10.1007/s002440010258Parvez Suhel, Raisuddin Sheikh (2006): Copper modulates non-enzymatic antioxidants in the freshwater fish Channa punctata (Bloch) exposed to deltamethrin. Chemosphere, 62, 1324-1332  https://doi.org/10.1016/j.chemosphere.2005.07.025Parvez Suhel, Sayeed Iqbal, Pandey Suwarna, Ahmad Ausaf, Bin-Hafeez Bilal, Haque Rizwanul, Ahmad Iqbal, Raisuddin Sheikh (2003): Modulatory Effect of Copper on Nonenzymatic Antioxidants in Freshwater Fish Channa punctatus (Bloch.). Biological Trace Element Research, 93, 237-248  https://doi.org/10.1385/BTER:93:1-3:237Pelgrom S.M.G.J., Lock R.A.C., Balm P.H.M., Bonga S.E.Wendelaar (1995): Integrated physiological response of tilapia, Oreochromis mossambicus, to sublethal copper exposure. Aquatic Toxicology, 32, 303-320  https://doi.org/10.1016/0166-445X(95)00004-NPerumalsamy Navaraj, Arumugam Kumaraguru (2013): Enzymes Activity in Fish Exposed to Heavy Metals and the Electro-Plating Effluent at Sub-Lethal Concentrations. Water Quality, Exposure and Health, 5, 93-101  https://doi.org/10.1007/s12403-013-0092-4Pretto Alexandra, Loro Vania Lucia, Silva Vera M. Machado, Salbego Joseânia, de Menezes Charlene Cavalheiro, Souza Carine de Freitas, Gioda Carolina Rosa, Baldisserotto Bernardo (2014): Exposure to Sublethal Concentrations of Copper Changes Biochemistry Parameters in Silver Catfish, Rhamdia quelen, Quoy & Gaimard. Bulletin of Environmental Contamination and Toxicology, 92, 399-403  https://doi.org/10.1007/s00128-014-1215-8Pyle Gregory G., Mirza Reehan S. (2007): Copper-Impaired Chemosensory Function and Behavior in Aquatic Animals. Human and Ecological Risk Assessment: An International Journal, 13, 492-505  https://doi.org/10.1080/10807030701340995Roesijadi G. (1996): Metallothionein and its role in toxic metal regulation. Comparative Biochemistry and Physiology Part C: Pharmacology, Toxicology and Endocrinology, 113, 117-123  https://doi.org/10.1016/0742-8413(95)02077-2Rougier F., Troutaud D., Ndoye A., Deschaux P. (1994): Non-specific immune response of Zebrafish, Brachydanio rerio (Hamilton-Buchanan) following copper and zinc exposure. Fish & Shellfish Immunology, 4, 115-127  https://doi.org/10.1006/fsim.1994.1010Ruas Clarissa Bonafé Gaspar, Carvalho Cleoni dos Santos, de Araújo Heloísa Sobreiro Selistre, Espíndola Evaldo Luiz Gaeta, Fernandes Marisa Narciso (2008): Oxidative stress biomarkers of exposure in the blood of cichlid species from a metal-contaminated river. Ecotoxicology and Environmental Safety, 71, 86-93  https://doi.org/10.1016/j.ecoenv.2007.08.018Sanchez Wilfried, Palluel Olivier, Meunier Laurent, Coquery Marina, Porcher Jean-Marc, Aït-Aïssa Sélim (2005): Copper-induced oxidative stress in three-spined stickleback: relationship with hepatic metal levels. Environmental Toxicology and Pharmacology, 19, 177-183  https://doi.org/10.1016/j.etap.2004.07.003 Shukla N, Maher J, Masters J, D Angelini G, Jeremy JY (2006): Does oxidative stress change ceruloplasmin from a protective to a vasculopathic factor? Atherosclerosis 187, 238–250.Smith P.K., Krohn R.I., Hermanson G.T., Mallia A.K., Gartner F.H., Provenzano M.D., Fujimoto E.K., Goeke N.M., Olson B.J., Klenk D.C. (1985): Measurement of protein using bicinchoninic acid. Analytical Biochemistry, 150, 76-85  https://doi.org/10.1016/0003-2697(85)90442-7Stohs S (1995): Oxidative mechanisms in the toxicity of metal ions. Free Radical Biology and Medicine, 18, 321-336  https://doi.org/10.1016/0891-5849(94)00159-H Svobodova Z, Vykusova B, Machova J (1994): The effects of pollutants on selected haematological and biochemical parameters in fish. In: Muller R, Lloyd R (eds.): Sublethal and Chronic Effects of Pollutants on Freshwater Fish, FAO Fishing News Books, 39–52. Svobodova Z, Pravda D, Modra H (2012): Methods of haematological examination of fish (in Czech). University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, Czech Republic, 38 pp. Takei Y, Loretz CA (2006): Endocrinology. In: Evans DH, Claiborne JB (eds.): The Physiology of Fishes. 3rd ed. CRC Press, Taylor & Francis. 272–342.Tang Q. Q., Feng L., Jiang W. D., Liu Y., Jiang J., Li S. H., Kuang S. Y., Tang L., Zhou X. Q. (2013): Effects of Dietary Copper on Growth, Digestive, and Brush Border Enzyme Activities and Antioxidant Defense of Hepatopancreas and Intestine for Young Grass Carp (Ctenopharyngodon idella). Biological Trace Element Research, 155, 370-380  https://doi.org/10.1007/s12011-013-9785-6 Teodorescu D, Munteanu MC, Staicu AC, Dinischiotu A (2012): Changes in lactate dehydrogenase activity in Carassius auratus gibelio (L. Pysces) kidney, gills and intestine induced by acute exposure to copper. Romanian Biotechnological Letters 17, 7873–7880.van der Oost Ron, Beyer Jonny, Vermeulen Nico P.E (2003): Fish bioaccumulation and biomarkers in environmental risk assessment: a review. Environmental Toxicology and Pharmacology, 13, 57-149  https://doi.org/10.1016/S1382-6689(02)00126-6Van Vuren J.H.J., Van der Merwe Marinda, Du Preez H.H. (1994): The effect of copper on the blood chemistry of Clarias gariepinus (clariidae). Ecotoxicology and Environmental Safety, 29, 187-199  https://doi.org/10.1016/0147-6513(94)90019-1Varanka Zsolt, Rojik Imre, Varanka István, Nemcsók János, Ábrahám Magdolna (2001): Biochemical and morphological changes in carp (Cyprinus carpio L.) liver following exposure to copper sulfate and tannic acid. Comparative Biochemistry and Physiology Part C: Toxicology & Pharmacology, 128, 467-477  https://doi.org/10.1016/S1532-0456(01)00166-1Vutukuru Sesha Srinivas, Chintada Suma, Radha Madhavi K., Venkateswara Rao J., Anjaneyulu Y. (2006): Acute effects of copper on superoxide dismutase, catalase and lipid peroxidation in the freshwater teleost fish, Esomus danricus. Fish Physiology and Biochemistry, 32, 221-229  https://doi.org/10.1007/s10695-006-9004-xWang Chunling, Zhang Futie, Cao Wenxuan, Wang Jianwei (2014): The identification of metallothionein in rare minnow (Gobiocypris rarus) and its expression following heavy metal exposure. Environmental Toxicology and Pharmacology, 37, 1283-1291  https://doi.org/10.1016/j.etap.2014.04.021 WHO (1998): Environmental Health Criteria 200: Copper, Geneva, Switzerland. Wilson RW, Wright PM, Munger S, Wood CM (1994): Ammonia excretion in freshwater rainbow trout (Oncorhynchus mykiss) and the importance of gill boundary layer acidification: lack of evidence for Na+/NH4+ exchange. Journal of Experimental Biology 191, 37–58. Witeska M, Kondera E, Lipionoga J, Nienaltowska R (2009): The changes in blood leukocyte profile of common carp induced by acute exposures to copper and cadmium. Fresenius Environmental Bulletin 18, 1534–1540. Witeska M, Kondera E, Lipionoga J, Jastrzebska A (2010): Changes in oxygen consumption rate and red blood parameters in common carp Cyprinus carpio L. after acute copper and cadmium exposures. Fresenius Environmental Bulletin 19, 115–122.