Growth and Reproduction Properties of the Doctor Fish, Garra rufa (Cyprinidae) Infected with Ectoparasite, Paradiplozoon bingolensis (Monogenea: Diplozoidae) in the Göynük River (Bingöl, Turkey) (original) (raw)
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Journal of Parasitology and Vector Biology
2012
Bivalve molluscs are filter feeders and can bioaccumulate oocysts of Cryptosporidium. Tiga Lake in Kano State Nigeria is used for recreational, domestic and agricultural purposes by humans and also serves as a source of drinking water for animals. Bivalve molluscs from the lake are consumed by people. This study was conducted to assess the occurrence of Cryptosporidium spp. in Tiga Lake using edible Anodonta sp., (fresh water mussels) a bivalve mollusc as sentinel. The samples were examined using modified acid fast staining technique and micrometery of the oocysts. 169 and 150 samples of the molluscs were collected from two locations namely Tashan Idi and Rurum, respectively. The organs examined from each of the molluscs were the gastrointestinal tracts (GIT), gills and haemolymph. The mean oocysts load was higher in the GIT (192.50 ± 173.03) than in the other organs, although the difference was not statistically significant (P> 0.05). Of the two sampling sites, 60 (35.50%) and 4...
Bozok Veterinary Sciences, 2023
Parasitic infestations represent one of the main challenges to freshwater and marine fish in all areas of the world. The infections are commonly found on the skin and gills of fish and can cause dangerous problems, as mortality, in heavily parasitized infections. This study was conducted to detect of ectoparasite types in fishes, 200 of Coptodon zillii from Euphrates and 120 Cyprinus carpio from Razzaza Lake, was used for this studying aquatic environment. The samples were obtained from the market by purchasing fish caught using gill nets in different periods in 2022-2023. After the macroscopic examination of the fish brought to the laboratory alive, native preparations prepared from the skin, gills and eyes were examined under a light microscope. The results of the both infected fishes revealed the presence of several clinical signs. The prevalence was 65.6%, in Coptodon zillii was 60% and Cyprinus carpio was 100%. Indeed, we observed the appearance of necrotic areas, ulcerations and hemorrhage on the gills. On other body parts, we found protozoan and monogenean parasites. The identification of ectoparasite was obtained in fins, skin, and gills and no infection in the eyes. Coptodon zillii were infected with 4 types of ectoparasites, Trichodina spp., Ichthyophthirius multifiliis spp., Dactylogyrus spp., and Gyrodactylus spp. Cyprinus carpio was infected by 2 types of parasites, I. multifiliis and Gyrodactylus spp. significant of results at P≤0.05 of fish type with weight and long but not significant for genders in both types. In future studies should be focusing on modern tools to the identification of parasite species in different environments.
Aceh Journal of Animal Science
The aimed of the study was to determine the prevalence, intensity and dominance of ectoparasites that infected gourami (Osphronemus goramy) which cultivated in floating net cages in Cirata reservoir, West Java. Present results showed that there were 22 gouramis infected with ectoparasites from 30 observed fish. The ectoparasites (Prevalence, Intensity and Dominance) found were Trichodina sp. (13.33%, 8.15 32.62%), Ichthyobodo sp. (3.33%, 1.00, 0.31%) Microsporadia (6.67%, 1.00, 0.31%), Carchesium granulatum (6.67%, 34.00, 20.92%), Cichligogyrus sp. (3.33%, 7.00, 2.15%), Dacthylogyrus sp. (20.00%, 2.00, 3.69%), Centrocestus sp. (6.67%, 3.00, 1.85%), Argulus sp. (56.67%, 6.94, 36.31%), Lerneae sp. (3.33%, 3.00, 0,92%), Gnatia sp. (3.33%, 1.00, 0.31%) and Hatschekia sp (3.33%, 1.00, 0.31%). The Argulus sp. had the highest prevalence with a percentage of 73.33% and becames the most dominant species with a percentage value of 36,31%. Meanwhile, Carchesium granulatum was an ectoparasite s...
Fish Parasitology Published Article
Engraulicypris sardella (Günter, 1868) is a cyprinid fish exploited in the waters of Lake Nyasa that has been found to be infested by Ligula intestinalis (Linnaeus, 1758). Although L. intestinalis has been the subject of a number of studies, there is no information on the effects of this parasite on E. sardella. This study was therefore aimed at assessing the prevalence and intensity of the parasite L. intestinalis, condition of the fish and impact on fecundity of E. sardella. Data recorded for each individual fish included: total length, weight, sex and maturity stage, number of parasites, gonad assessment and egg count. Number, length and total weight of L. intestinalis found per fish host were recorded.
https://www.ijrrjournal.com/IJRR\_Vol.9\_Issue.8\_Aug2022/IJRR-Abstract63.html, 2022
The parasitic fauna of four economically important fish species comprising of Synodontis budgetti, Chrysichthys nigrodigitatus, Bagrus docmac and Heterobranchus bidorsalis from River Okpokwu, Apa, Nigeria, was investigated. A total of 161 fish samples comprising of 57 S. budgetti, 48 C. nigrodigitatus, 24 B. docmac and 32 H. bidorsalis were randomly purchased and subjected to parasitological examination. The overall parasite prevalence of all the fish species was 36.60% out of which S. budgetti, C. nigrodigitatus, B. docmac and H. bidorsalis accounted for 14.30%, 11.20%, 1.90% and 9.30%, respectively. However, the prevalence of infection by each fish species were 40.40%, 37.50%, 12.50% and 46.90% for S. budgetti, C. nigrodigitatus, B. docmac and H. bidorsalis, respectively. There was no significant difference in parasite prevalence for fish species (p>0.05) though, S. budgetti had the highest prevalence of infection (14.70%) with B. docmac recording the least (1.90%). Also, while the highest prevalence of infection was recorded for nematode (17.40%), the least (3.70%) each was recorded for trematode and copepode, respectively. Of the parasitic taxa, nematode was the most abundant (56.50%) and had the highest prevalence (17.40%). The parasites recovered from the fish species belonged to a species of acanthocephala (Neoechinorhynchus rutili), copepode (Argulus africanus.) trematode (Clinostomum complanatum), 2 species of cestode (Ligula intestinalis and Diphillobothrium latum) and 4 species of nematode (Capillaria philippinensis, Eustrongylides tubifex, Camallanus polypteri and Procamallanus laevionchus). Out of the total number (292) of parasites recovered from the infested body parts of the fish, intestine had the highest percentage parasite load (62.30%) and prevalence (29.80) while the gill had the least 16(5.50%) parasite load and prevalence of 3.10. Generally, the prevalence of parasites (43.00%), percentage parasite recovered (56.50%), mean abundance (2.60) and mean intensity (5.90) were higher for the female fish samples compared to the males with the prevalence of parasites, percentage parasite recovered, mean abundance and mean intensity of (32.00%), (43.50%), (1.30) and (4.10), respectively. However, there was no significant difference (p>0.05) by sex in the prevalence of parasites of all the fish species. The size class related prevalence showed an increase in parasitic infections (24.60%) and (20.80%) in S. budgetti and C. nigrodigitatus) in the length groups of 13.00 to 15.90cm and 19.00 to 22.90cm while the least (5.30%) and (6.30%) were recorded for S. budgetti and C. nigrodigitatus in the length groups of 10.00 to 12.90cm and 15.00 to 18.90cm, respectively. However, while the highest prevalence (8.30%) and (21.90%) were recorded for smaller samples of B. docmac and H. bidorsalis in the length groups of 10.00 to 20.90cm and 13.00 – 21.90cm, the least (4.20%) and (3.10%) were recorded in length groups of 41.00 to 50.90cm and 39.00 – 54.90cm for bigger samples of B. docmac and H. bidorsalis, respectively.
Dead and alive parasites: sexual ornaments signal resistance in the male fish, Rutilus rutilus
The Hamilton and Zuk hypothesis proposed that male sexual ornaments could signal resistance against local co-evolving parasites. We examined the ornamentation-the breeding tuberclesof roach from five populations in relation to (a) parasite load (intensity/prevalence; five species), (b) host resistance (proportion of dead parasites; two species), (c) immune function (spleen size) and (d) somatic condition. The gill endo-parasite Rhipidocotyle campanula was locally the most prevalent and abundant among the five parasite species studied. Ornamentation correlated positively with the proportion of dead R. campanula, but not with the other parameters or the other parasite species. This suggests that ornamentation may signal a male's ability to eliminate local parasites as expected by the hypothesis. Furthermore, we propose that the proportion of dead parasites in a host may provide a useful measure of its resistance, since it might be a species-specific, direct, long-term measure of host immunological response.
Journal of Ichthyology, 2013
Population characteristics of macroparasite infection (prevalence and intensity) in juvenile roach Rutilus rutilus have been studied in one of the tributaries of the Rybinsk Reservoir. The level of infection and parasite diversity is higher in the mouth part than in the upper reaches of the river. Habitats in the upper reaches are characterized by a high degree of irregularity of the risk of infection. The intensity of parasitic infection varies from the absence of parasites to 100% infection. Our data confirm the hypothesis about adap taive value of the spawning migration to habitats with lower risk for the infection of offspring with parasites. Heterogeneous conditions in the upper reaches of the river make it possible for juvenile fish from a migrating part of the population to grow in relatively safe conditions. Differences in the strategy of the spawning migra tion can be based on the ecological differentiation as a result of which the groups oriented either at the local adaptation or at migration to the other habitat are formed in the population.
DergiPark (Istanbul University), 2021
Examination of 341 individuals of Luciobarbus callensis caught in Foum El Khanga Dam during the year 2015, allowed us to collect 2782 specimens of the parasitic species Dactylogyrus heteromorphus El Gharbi, 1994. The statistical study of the epidemiological index distribution of D. heteromorphus shows that the parasitic infestation varies from one season to another. In contrast, the sex and size of L. callensis do not affect parasite infestation. Variations in the epidemiological index of D. heteromorphus concerning fifteen physicochemical water parameters were tested statistically. These variations are significant with temperature, salinity, nitrate, nitrite, chloride, phosphate, calcium, sulfate, hardness, turbidity, and electrical conductivity, however, no significant effect of the concentration of magnesium, dissolved oxygen, ammonium, and pH on these indexes according to the Pearson's parametric test.