[Atanasov, G. (2012): Fauna, morfologiya i biologiya na endokhelminti po ribi ot bŭlgarskiya uchastŭk na reka Dunav [Fauna, morphology and biology on the endohelminths of fish from Bulgarian part of the Danube River]. PhD thesis, Bulgaria, Sofia: Bulgarian Academy of Science (In Bulgarian)]Search in Google Scholar
[Bush, A., Lafferty, K., Lotz, J., Shostak, A. (1997): Parasitology meets ecology on its own terms. J. Parasitol., 83: 575 – 583. DOI: 10.2307/328422710.2307/3284227]Open DOISearch in Google Scholar
[Bykhovskaya-Pavlovskaya, I. (1985): Parazity ryb: rukovodstvo po izucheniyu [Parasites of fish: Manual on study], Nauka, Leningrad, 121 pp. (In Russian)]Search in Google Scholar
[Chunchukova, M., Shukerova, S., Kirin, D. (2016): Research of the impact of river Danube on Biosphere Reserve “Srebarna” by model ecosystem Abramis brama – macroinvertebrates – sediments. Agricultural Sciences / Agrarni Nauki, Agricultural University Plovdiv, 8(19): 151 – 158. DOI: 10.22620/agrisci.2016.19.02310.22620/agrisci.2016.19.023]Search in Google Scholar
[Chunchukova, M., Kirin, D., Kuzmanova, D., Shukerova, S. (2017): Accumulation of lead in Abramis brama and its parasite Pomphorhynchus tereticollis from Danube river (Vetren area). Scientific Papers. Series D. Animal Science., 60: 327 – 332]Search in Google Scholar
[Djikanovic, V., Gacic, Z., Cakic, P. (2010): Endohelminth fauna of barbel Barbus barbus (L. 1758) in the Serbian section of the Danube River, with dominance of acanthocephalan Pomphorhynchus laeavis. Bull. Eur. Ass. Fish Pathol., 300: 229 – 236]Search in Google Scholar
[Djikanovic, V., Paunovic, M., Nikolic, V., Simonovic, P., Cakic, P. (2012): Parasitofauna of freshwater fishes in the Serbian open waters: a checklist of parasites of freshwater fishes in Serbian open waters. Rev. Fish Biol. Fisheries, 22(1): 297 – 324. DOI: 10.1007/s11160-011-9226-610.1007/s11160-011-9226-6]Open DOISearch in Google Scholar
[Froese, R., Pauly, D. (2018) Editors. FishBase. World Wide Web electronic publication. www.fishbase.org, version (10/2017).]Search in Google Scholar
[Georgiev, B., Biserkov, V., Genov, T. (1986): In totostaining method for cestodes with iron acetocarmine. Helminthologia, 23: 279 – 281]Search in Google Scholar
[Gettová, L., Gilles, A., Šimková A. (2016): Metazoan parasite communities: support for the biological invasion of Barbus barbus and its hybridization with the endemic Barbus meridionalis. Parasit. Vectors, 9: 588. DOI: doi.org/10.1186/s13071-016-1867-910.1186/s13071-016-1867-9511473127855708]Open DOISearch in Google Scholar
[Hudson, P. J., Dobson, A. P., Lafferty, K. D. (2006): Parasites and ecological systems: is a healthy system one with many parasites? Trends Ecol. Evol., 21: 381 – 385. DOI: doi.org/10.1016/j.tree.2006.04.00710.1016/j.tree.2006.04.00716713014]Open DOISearch in Google Scholar
[Kakacheva-Avramova, D. (1977): Izsledvane khelmintite na ribi ot Bŭlgarskiya uchastŭk na r. Dunav [Studies on helminths of fishes in the Bulgarian section of the Danube River]. Khelminthologia, 3: 20 – 45 (In Bulgarian)]Search in Google Scholar
[Kakacheva-Avramova, D. (1983): Khelminti na sladkovodnite ribi v Bŭlgariya [Helminths of freshwater fishes in Bulgaria]. Bulgarian Academy of Science, Sofia, 261 pp. (In Bulgarian)]Search in Google Scholar
[Kakacheva-Avramova, D., Margaritov, N., Grupcheva, G. (1978): Paraziti u ribi ot Bŭlgarskiya uchastŭk na r. Dunav [Fish parasites of Bulgarian part of the Danube River]. In: Limnology of Bulgarian part of the Danube River, Bulgarian Academy of Science, pp. 250 – 268 (In Bulgarian)]Search in Google Scholar
[Kennedy, C. (1993): The dynamics of intestinal helminth communities in eels Anguilla anguilla in a small stream: long-term changes in richness and structure. Parasitology, 107: 71 – 78. DOI: 10.1017/S003118200007942710.1017/S0031182000079427]Open DOISearch in Google Scholar
[Kennedy, C. (1997): Freshwater fish parasites and environmental quality, an overview and caution. Parassitologia, 39: 249 – 254]Search in Google Scholar
[Khalil, L.F., Jones, A., Bray, R.A. (1994): Keys to the cestode parasites of vertebrates. Wallingford, Oxon, CAB International, 751 pp.10.1079/9780851988795.0000]Search in Google Scholar
[Kirin, D., Hanzelová, V., Shukerova, S., Hristov, S., Turčeková, L., Špakulová, M. (2013): Helminth communities of fishes from the River Danube and Lake Srebarna, Bulgaria. Scientific Papers. Series D. Animal Science, 56: 333 – 340]Search in Google Scholar
[Kirin, D., Hanzelová, V., Shukerova, S., Kuzmanova, D. (2014): Biodiversity, bioindication and helminth communities of Abramis brama (Linnaeus, 1758) from the Danube River and Srebarna Lake, Bulgaria. Turkish Journal of Agricultural and Natural Sciences, Special Issue 1: 727 – 733]Search in Google Scholar
[Krebs, C.J. (1999): Ecological Methodology, 2nd edition. Menlo Park, California: Benjamin/Cummings Publishing, 620 pp.]Search in Google Scholar
[Kulakovskaya, O. P., Koval, V. P. (1973): Parazitofauna ryb basseyna Dunaya [Parasite fauna of fishes of the Danube basin]. Naukova Dumka, Kiev, 211 pp. (In Russian)]Search in Google Scholar
[Magurran, A.E. (2004): Measuring Biological Diversity. Oxford: Blackwell Publishing, 264 pp.]Search in Google Scholar
[Margaritov, N. (1959): Paraziti po nyakoi nashi sladkovodni ribi [Parasites of some freshwater fishes]. Publishing House NIRRP, Varna, 21 pp. (In Bulgarian)]Search in Google Scholar
[Margaritov, N. (1966): Khelminti na khranosmilatelnata sistema i telesnata praznina na ribite ot Bŭlgarskiya uchastŭk na r. Dunav [Helminths of the digestive tract and the abdominal cavity of fishes of the Bulgarian section of Danube River]. Bulletin de l’Institut de Zoologie et Musée de l´Academie des Sciences de Bulgarie, 20: 157 – 173. (In Bulgarian)]Search in Google Scholar
[Molnár, K. (1970) Beiträge zur Kenntnis der Fischparasitenfauna Ungarns VI. Cestoda, Nematoda, Acanthocephala, Hirudinea [Contributions to the knowledge of the fish parasite fauna of Hungary VI. Cestoda, Nematoda, Acanthocephala, Hirudinea]. Parasit. Hung., 3: 51 – 76. (In German) http://publication.nhmus.hu/pdf/parhung/Parasit_Hung_1970_Vol_3_51.pdf]Search in Google Scholar
[Moravec, F. (2001): Checklist of the Metazoan Parasites of Fishes of the Czech Republic and Slovak Republic. Academia, Praha, 168 pp.]Search in Google Scholar
[Moravec, F. (2013): Parasitic nematodes of freshwater Fishes of Europe. Revised second edition, Academia, Praha, 601 pp.]Search in Google Scholar
[Moravec, F., Konečný, R., Baska, F., Rydlo, M., Scholz, T., Molnár, K., Schiemer, F. (1997): Endohelminth fauna of barbel, Barbus barbus (L.), under ecological conditions of the Danube basin in Central Europe. Academia, Praha, Studie AV ČR 3/1997, 96pp.]Search in Google Scholar
[Nachev, M. (2010): Bioindication capacity of fish parasites for the assessment of water quality in the Danube River. PhD thesis, Germany, Essen: University of Duisburg-Essen, https://duepublico.uni-duisburg-essen.de/servlets/DerivateServlet/Derivate-24927/Dissertation_Nachev.pdf]Search in Google Scholar
[Nachev, M., Sures, B. (2009): The endohelminth fauna of barbel (Barbus barbus) correlates with water quality of the Danube River in Bulgaria. Parasitology, 136: 545 – 552. DOI: 10.1017/S003118200900571X10.1017/S003118200900571X19250599]Open DOISearch in Google Scholar
[Nedeva, I., Atanassov, G., Karaivanova, E., Cakic, P., Lenghardt, M. (2003): Pomphorhynchus laevis (Müller, 1776) from the River Danube. Experimental Pathology and Parasitology 6: 14 – 16]Search in Google Scholar
[Ondračková, M., Dávidová, M., Pečínková, M., Blažek, R., Gelnar, M., Valová, Z., Černý, J., Jurajda, P. (2005): Metazoan parasites of Neogobius fishes in the Slovak section of the River Danube. J. Appl. Ichthyol. 21: 345 – 349. DOI:10.1111/j.1439-0426.2005.00682.x10.1111/j.1439-0426.2005.00682.x]Open DOISearch in Google Scholar
[Perrot-Minnot, M-J, Špakulová, M., Wattier, R., Kotlík, P., Düşen, S., Aydoğdu A., Tougard, C. (2018): Contrasting phylogeography of two Western Palaearctic fish parasites despite similar life cycles. J. Biogeograph. 45: 101 – 115. DOI: 10.1111/jbi.1311810.1111/jbi.13118]Open DOISearch in Google Scholar
[Perrot-Minnot, M.-J. (2004): Larval morphology, genetic divergence, and contrasting levels of host manipulation between forms of Pomphorhynchus laevis (Acanthocephala). Int. J. Parasitol., 34: 45 – 54. DOI: doi.org/10.1016/j.ijpara.2003.10.00510.1016/j.ijpara.2003.10.00514711589]Open DOISearch in Google Scholar
[Petrochenko, V.I. (1956): Akantotsefaly (skrebni) domashnikh i dikikh zhivotnykh [Acanthocephala of Domestic and Wild Animals]. Izdatelstvo Akademii Nauk SSSR, Moskva, Vol. I, 435 pp. (In Russian)]Search in Google Scholar
[Polačik, M., Trichkova, T., Janáč, M., Vassilev, M., Jurajda, P. (2008). The ichthyofauna of the shoreline zone in the longitudinal profile of the Danube River, Bulgaria. Acta Zool. Bulg., 60: 77 – 88]Search in Google Scholar
[Protasova, E.N. (1977): Osnovyy sestodologii. VIII. Botriotsefalyaty – lentochnyye gel’minty ryb [Bases on the Cestodology. VIII. Bothriocephalata – Tapeworms of fish]. Nauka, Moskva, 298 pp. (In Russian)]Search in Google Scholar
[Rozsa, L., Reiczigel, J., Majoros, G. (2000): Quantifying parasites in samples of hosts. J. Parasitol., 86: 228 – 232. DOI: 10.1645/0022-3395(2000)086[0228:QPISOH]2.0.CO;210.1645/0022-3395(2000)086[0228:QPISOH]2.0.CO;2]Open DOISearch in Google Scholar
[Scholz, T., Moravec F. (1996): Seasonal occurrence and maturation of Bathybothrium rectangulum (Cestoda: Amphicotylidae) in barbel Barbus barbus (Pisces) of the Jihlava River, Czech Republic. Parasite, 31: 39 – 44. DOI: 10.1051/parasite/199603103910.1051//1996031039]Open DOISearch in Google Scholar
[Scholz, T., Hanzelová, V. (1998): Tapeworms of the genus Proteocephalus Weinland, 1858 (Cestoda: Proteocephalidae), parasites of fishes in Europe. Academia, Praha. Studie AV ČR, 119 pp.10.2307/3285724]Search in Google Scholar
[Schludermann, C., Konecny, R., Laimgruber, S., Lewis, J.W., Schiemer, F., Chovanec, A., Sures, B. (2003): Fish macroparasites as indicators of heavy metal pollution in river sites in Austria. Parasitology, 126: s61 – s69. DOI: 10.1017/S003118200300374310.1017/S0031182003003743]Open DOISearch in Google Scholar
[Shukerova, S. (2006): Helminth fauna of the common carp, Cyprinus carpio (Linnaeus, 1758), from the Srebarna Biosphere Reserve, Bulgaria. Scientific Articles. Ecology 2006, Part 2: 217 – 223]Search in Google Scholar
[Shukerova, S. (2010): Хелминти и хелминтни съобщества на рибите от бисферен резерват „Сребърна” [Helminths and helminth communities of freshwater fish from Biosphere Reserve Srebarna]. PhD thesis, Bulgaria, Plovdiv: Agricultural University (In Bulgarian)]Search in Google Scholar
[Shukerova, S., Kirin, D., Hanzelova, V. (2010): Endohelminth communities of the perch, Perca fluviatilis (Perciformes, Percidae) from Srebarna Biosphere Reserve, Bulgaria. Helminthologia, 47: 99 – 104. DOI: 10.2478/s11687-010-0016-910.2478/s11687-010-0016-9]Open DOISearch in Google Scholar
[Shvydka, S., Sarabeev, V., Estruch, V. D., Cadarso-Suárez, C. (2018): Optimum sample size to estimate mean parasite abundance in fish parasite surveys. Helminthologia, 55: 52 – 59. DOI: https://doi.org/10.1515/helm-2017-005410.1515/helm-2017-0054]Open DOISearch in Google Scholar
[Tubic, B.T., Simic, V.M., Zoric, K.S., Gačic, Z.M., Atanackovic, A.D., Csányi, B.J., Paunovic, M.M. (2013): Stream section types of the Danube River in Serbia according to the distribution of macroinvertebrates. Biologia, 68: 294 – 302. Section Zoology. DOI: 10.2478/s11756-013-0152-z.10.2478/s11756-013-0152-z]Open DOISearch in Google Scholar
[Westram, A.M., Baumgartner, C., Kellera, I., Jokela, J. (2011): Are cryptic host species also cryptic to parasites? Host specificity and geographical distribution of acanthocephalan parasites infecting freshwater Gammarus. Infect. Genet. Evol. 11: 1083 – 1090. DOI: 10.1016/j.meegid.2011.03.02410.1016/j.meegid.2011.03.024]Open DOISearch in Google Scholar