| AutorIn | | Name: | Marshet Adugna Mitiku | Beurteilende(r)| Name: | Ao.Univ.Prof. Dr.phil. Herwig Waidbacher | | Herkunftsbetrieb: | | | 1.Mitwirkender | | Name: | Dr. Robert Konecny | | Herkunftsbetrieb: | | | Arbeit | | Typ der Arbeit: | Masterarbeit | | Sprache der Arbeit: | Englisch | | Titel der Arbeit in Originalsprache: | PARASITE SPECIES RICHNESS OF FISH FROM FISH PONDS AND FINGERLING SOURCES IN CENTRAL ETHIOPIA: IT´S IMPLICATION ON AQUACULTURE DEVELOPMENT | | Titel der Arbeit in deutsch: | Parasite Species Richness of Fish from Fish Ponds and Fingerling Sources in Central Ethiopia: It’s Implication on Aquaculture Development | | Titel der Arbeit in englisch: | PARASITE SPECIES RICHNESS OF FISH FROM FISH PONDS AND FINGERLING SOURCES IN CENTRAL ETHIOPIA: IT´S IMPLICATION ON AQUACULTURE DEVELOPMENT | | Publikationsmonat: | 04.2017 | | Seitenanzahl: | 78 | | Volltext | | Volltext der Arbeit: | Volltext der Arbeit im PDF-Format laden | | Online-Katalog der Universitätsbibliothek Bodenkultur | | AC-Nummer: | AC13709187 | | Abstract | | Abstract in Deutsch: | This study was conducted from October 2016 to January 2017 from Koftu Lake, Sebeta ponds and selected private fish farms in Wonchi area, Ethiopia. The main objective was identifying the major parasites of O. niloticus to the lowest possible taxa, quantitatively determining the prevalence, mean intensities and mean abundances of parasites and calculating parasite diversity in the three study sites. A total of 302 O. niloticus were examined using conventional parasitological examination procedures. From the sampled fish, 11 different genera of parasites were identified in the three study sites. One genus of Protozoa, one genus of Monogenea, unidentified larvae of Cestoda, four genera of Digenea, two genera of Nematoda, one species of Acanthocephala and one genus of Crustacea were recorded. The overall prevalence of parasites of O. niloticus covering all study sites was 83.4%. The prevalences of parasites in Koftu Lake, Sebeta ponds and private fish farms were found to be 100%, 71.0% and 82.2% respectively. There was a statistical significant difference (p<0.05) between the study sites in overall prevalence and mean intensity of the parasite infestations. Koftu Lake and Sebeta ponds have higher diversity indices and show the same community similarity coefficient. Values of prevalence, mean intensity and diversity of the parasites were especially high in Koftu Lake and there is a need to design control strategies especially when fingerlings from the lake are used for stocking in other water bodies and intensive and small-scale fish farms. Two digeneans, Clinostomum sp., Euclinostomum sp. and one nematode, Contracaecum sp. were identified as a possible health risk for humans. | | Abstract in Englisch: | This study was conducted from October 2016 to January 2017 from Koftu Lake, Sebeta ponds and selected private fish farms in Wonchi area, Ethiopia. The main objective was identifying the major parasites of O. niloticus to the lowest possible taxa, quantitatively determining the prevalence, mean intensities and mean abundances of parasites and calculating parasite diversity in the three study sites. A total of 302 O. niloticus were examined using conventional parasitological examination procedures. From the sampled fish, 11 different genera of parasites were identified in the three study sites. One genus of Protozoa, one genus of Monogenea, unidentified larvae of Cestoda, four genera of Digenea, two genera of Nematoda, one species of Acanthocephala and one genus of Crustacea were recorded. The overall prevalence of parasites of O. niloticus covering all study sites was 83.4%. The prevalences of parasites in Koftu Lake, Sebeta ponds and private fish farms were found to be 100%, 71.0% and 82.2% respectively. There was a statistical significant difference (p<0.05) between the study sites in overall prevalence and mean intensity of the parasite infestations. Koftu Lake and Sebeta ponds have higher diversity indices and show the same community similarity coefficient. Values of prevalence, mean intensity and diversity of the parasites were especially high in Koftu Lake and there is a need to design control strategies especially when fingerlings from the lake are used for stocking in other water bodies and intensive and small-scale fish farms. Two digeneans, Clinostomum sp., Euclinostomum sp. and one nematode, Contracaecum sp. were identified as a possible health risk for humans.
| | Schlagworte | | Schlagwörter Deutsch: | Koftu See, Fischfarmen, Parasitenintensitäten, O. Niloticus, Parasiten,
Prävalenz, Vielfalt, Äthiopien | | Schlagwörter Englisch: | Koftu Lake, Fish farms, Parasite intensities, O. niloticus, Parasites,
Prevalence, Diversity, Ethiopia | | Sonstiges | | Signatur: | D-19403 | | Organisationseinheit, auf der die Arbeit eingereicht wird: | H81200 Institut für Hydrobiologie und Gewässermanagement (IHG) | |
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