Helminthofauna of Ohrid gudgeon (Gobio ohridanus Karaman, 1924) from the Lake Ohrid, Macedonia (original) (raw)
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MONOGENEAN TREMATODS- PARASITES OF SOME CYPRINID FISHES FROM LAKES OHRID AND PRESPA (MACEDONIA
(Lake Ohrid and Lake Prespa), 7 monogenean species were found: in Chondrostoma nasus we found: Dactylogyrus elegantis, D. vistulae and Paradiplozoon homoion homoion, in Alburnus alburnus we found Dactylogyrus alatus f. typica, Dactylogyrus minor, Diplozoon paradoxum and Paradiplozoon alburni, in Alburnoides bipunctatus we found Dactylogyrus alatus f. typica and Paradiplozoon alburni. Prevalence in Chondrostoma nasus ohridanus is 50,0%, in Chondrostoma nasus prespensis is 41,59% (in total Chondrostoma nasus -41,88%), in Alburnus alburnus ohridanus is 47,75%, in Alburnus alburnus prespensis is 41,38% % (in total Alburnus alburnus -44,95%), in Alburnoides bipunctatus ohridanus is 35,14%), in Alburnoides bipunctatus prespensis is 11,54% (in total Alburnoides bipunctatus -29,0%). The most frequent monogeneans found in the fishes from both lakes are: Dactylogyrus alatus f. typica (established in 17,62% of all examined fishes) and Dactylogyrus minor (established in 16,31% of all fishes). Dactylogyrus alatus f. typica, D. minor, Diplozoon paradoxum and Paradiplozoon alburni represents a first record for the parasite fauna of fishes in Macedonia. The greatest pathological influence is associated with the monogeneans: Dactylogyrus vistulae, Paradiplozoon homoion homoion, Paradiplozoon alburn and Diplozoon paradoxum.
Fauna of monogenean trematodes-parasites of some cyprinid fishes from lake Prespa, Macedonia
Acta Veterinaria-beograd, 2004
During parasitological investigations six species of monogenean trematodes were found on the gills of three cyprinid fish species from Lake Prespa (Macedonia), as follows: Dactylogyrus prostae and Dactylogyrus sphyrna in Leuciscus cephalus albus, Dactylogyrus erhardovae, Dactylogyrus sphyrna and Paradiplozoon zeller in Rutilus rubilio prespensis and Dactylogyrus elegantis and Dactylogyrus vistulae in Chondrostoma nasus prespensis. The prevalence in Leuciscus cephalus albus was 62.22%, in Rutilus rubilio prespensis 59.87%, while in Chondrostoma nasus prespensis it was the lowest and amounted to 41.59%. The overall, prevalence of monogeneans in the investigated cyprinid fishes from Lake Prespa was 53.65%, and the mean intensity of infestation was 6.08. Among the monogenean species the highest prevalence occurred with Dactylogyrus sphyrna (25.08%), and the greatest intensity of infestation was evident in the cases of infestation with Dactylogyrus erhardovae (12.87). The greatest pathological effect was associated with the monogeneans Dactylogyrus vistulae and Paradiplozoon zeller. All monogenean species found represented the first record for such parasite fauna of fishes in Macedonia.
FIRST NOTE ON FISH PARASITES IN POLISSKY NATURE RESERVE, NORTHERN UKRAINE
Nineteen species of parasites belonging to seven taxonomical groups were detected in nine species of fi sh (Gobio gobio (Linnaeus, 1758), Cobitis taenia Linnaeus, 1758, Squalius cephalus (Linnaeus, 1758), Rutilus rutilus (Linnaeus, 1758), Misgurnus fossilis (Linnaeus, 1758), Sabanejewia baltica Witkowski, 1994, Barbatula barbatula (Linnaeus, 1758), Esox lucius Linnaeus, 1758 and Perca fluviatilis Linnaeus, 1758) from two small rivers in Polissky Nature Reserve in the northern part of Ukraine. Th e highest species richness of parasites was registered for G. gobio (7 species). Four species of parasites were found in S. cephalus. Th ree parasite species were found in E. lucius. Two parasite species were detected in R. rutilus and P. fl uviatilis. C. taenia, M. fossilis, and S. baltica harboured each one species of parasites. Gyrodactylus sp. from S. baltica was reported for the fi rst time. All parasites represent new geographical fi nding for the north of Ukraine.
Review on Agriculture and Rural Development
The representatives of the class Monogenea are of great importance in fish pathology. Dactylogyrus vastator (Nybelin 1924) (Monogenea: Dactylogyridae) is a common pathogenic monogenean parasite in common carp (Cyprinus carpio Linnaeus, 1758) from freshwater lakes and cyprinid ponds, worldwide. In our study, a total of 133 specimens of common carp from the cage culture system on Mladost Reservoir (N. Macedonia) were subjected to a parasitological investigation, by seasons. Only fresh fish were subjected to routine identification, dissection, and observation methods. Parasite identification was performed morphologically, based on the character of significant organs, using referent keys for determination. Dactylogyrus vastator was found in winter, on gills of 27 specimens of common carp, with a prevalence of 2.818%, and mean intensity of 6.850. During our research, the presence of Dactylogyrus vastator was found in an aquaculture facility with a very high fish stock density. This paras...
2004
Stojanovski S., Hristovski N., Caki} P., Hristovski M. & Baker R.A. (2004). Fauna of monogenean trematods parasites in bleak Alburnus alburnus belvica Karaman, 1924 (pisces: Cyprinidae) from the Lake Prespa (Macedonia). Proceedings of the 2nd Congress of Ecologists of the Republic of Macedonia with International Participation, 25-29.10.2003, Ohrid. Special issues of Macedonian Ecological Society, Vol. 6, Skopje. During the parasitological investigations on the fishes from the Lake Prespa (Macedonia), in bleak (Alburnus alburnus belvica Karaman, 1924) are found 4 species of the class Monogenea: Dactylogyrus alatus f. typica, Dactylogyrus minor, Diplozoon paradoxum and Paradiplozoon alburni. Totally are examined 174 fish specimens, of which 72 specimens (41,38%) are infested. Prevalence is the highest with Dactylogyrus alatus f. typica (22,41% of the total number of examined bleaks are infested), then Dactylogyrus minor (17,24%), then Diplozoon paradoxum and Paradiplozoon alburni (3,4...
Parasitological examination from the Macedonian part of the Lake Ohrid showed that of 191 specimens of eel (Anguilla anguilla Linnaeus, 1758) 98 fishes (51.31%) were infested with gill monogeneans. In our case study the presence of 2 dactylogyrid species was found: Pseudodactylogyrus anguillae (Yin & Sproston, 1948) and Pseudodactylogyrus bini (Kikuchi, 1929). Both species are rather pathogenic to their hosts and can cause mortality of heavily infected eels in ell farms in both Asia and Europe. Pseudodactylogyrus species have hitherto been reported from eels in Central and North European countries. This is the first record of Pseudodactylogyrus anguillae and Pseudodactylogyrus bini for the fishes from Macedonia.
Monogenean Trematods of ChubLeuciscus Cephalus AlbusBonaparte, 1838 from the Lake Ohrid (Macedonia)
Biotechnology & Biotechnological Equipment, 2010
During the parasitological investigations on the gills of Leuciscus cephalus albus from Lake Ohrid (Macedonia), are found 4 monogenean species: Dactylogyrus sphyrna, Dactylogyrus folkmanovae, Dactylogyrus vistulae and Paradiplozoon ergensi. The total prevalence of infestation is 58,0% and the highest prevalence is of Dactylogyrus sphyrna (found in 26,0% of chubs). The average intensity of infestation is 5,50, and the highest level is that of Paradiplozoon ergensi. All monogenean species mentioned in this study represents a first record for the fishes from natural lakes in Macedonia, with the exception of Paradiplozoon ergensi, previously found in the Lake Ohrid. Among the monogenean species, found out in Lake Ohrid, the greatest pathological influence is associated with Dactylogyrus vistulae and Paradiplozoon ergensi.
Preliminary Investigations on Odonata from the Lake Ohrid (Macedonia)
Biotechnology & Biotechnological Equipment, 2010
There is much information about odonates in lakes in the whole Europe. The lack of data about this group of invertebrates in the Lake Ohrid-the UNESCO natural and cultural heritage is unusual. The aim of our paper is to cover that field. Material included 17 species and 476 specimens of only adult Odonata, which was collected in June 2009 year on 21 stations of the Lake Ohrid. Such number of species is not very high and appears in low differential of phyto-littoral of the lake. The most numerous species is Enallagma cyathigerum, which is widespread and associated with nymphaeid and elodeid plant species. Such big number of individuals the species is supported by a large belt of elodeids (Potamegeton perfoliatus) occurring in the Lake Ohrid. Four odonates belong to South-European species; the other ones are widespread European species. Probably the reason is position of the Lake Ohrid in the mountains, which made climate more moderate.
Parasite ecology of Carassius gibelio (Bloch, 1782) in Jandari Lake (Georgia)
Caucasiana
The aim of the investigation was to study the current structure of the parasitic fauna of the gibel carp (Carassius gibelio) population in the Georgian part of Jandari Lake. In total, 423 young gibel carp collected during 2014-2018 years from Jandari Lake have been subject to parasitological examination. The 20.3% (n=86) of examined fish were invaded by 11 species of parasites belonging to 5 taxonomic groups. The dominant taxonomic groups were discovered to be Protozoa and Monogenea. The eight species were registered for the first time in the gibel carp of freshwater reservoirs in Georgia. In general, young fish were more invaded by the monoxenic species of the direct life cycle. None of the revealed parasites were specific to gibel carp. The parasitic fauna of Jandari Lake is relatively poor, though it is comparatively rich and diverse in spring. Trichodina sp. from Protozoa, Ancyrocephalus sp., Dactylogyrus vastator, Gyrodactylus elegans from Monogenea, and Contracaecum sp. from N...