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Parasitological and ecological studies on freshwater fish at Helwan in Egypt / Nora Ibrahim Abdelrhman ; Supervised Manal Farouk Elgarhy , Kareem Said Morsy , Amr Adel Abdelkhalek

By: Contributor(s): Material type: TextTextLanguage: English Publication details: Cairo : Nora Ibrahim Abdelrhman , 2019Description: 213 P. : charts , photographs ; 25cmOther title:
  • دراسات طفيلية و بيئية على اسماك المياه العذبة بحلوان فى مصر [Added title page title]
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Dissertation note: Thesis (M.Sc.) - Cairo University - Faculty of Science - Department of Zoology Summary: The present study aimed to survey some of the ecto and endoparasites infecting selected commercial fish in Egypt. 176 fish specimens representing four different species of four families were collected during the period from January 2015 to February 2016 from Rokn Farouk along the River Nile, Helwan, Egypt. Five different species of monogenean parasites were recovered during the current study which were Cichlidogyrus aegypticus, Cichlidogyrus tilapiae, Gyrodactylus cichlidarum, Protoancylodiscoides malapteruri and Quadriacanthus bagrae. Five different species of digenean parasites were recovered during study which were metacercaria of Euclinostomum heterostomum, metacercaria ofClinostomum complanatum, adults of Orientocreadium batrachoides, Glossidium pedatum and Acanthostomum spiniceps. In addition, two different species of nematode parasites contracaecum sp. and Anisakis simplex were recovered as larvae. Also water quality parameters as well as heavy metals concentrations either in water, sediment or in fish organs were measured seasonally. The results showed that the parasites have ability to accumulate heavy metals in their tissues more than the existing quantities in their hosts which mean that the parasites represent good bioindicators of water pollution. The results showed that the lowest percentage of bioaccumulation of these metals was in the muscles of fish. Also, the effect of different cooking methods of fish on the level of heavy metals in their tissues was detected. It was found that the concentrations of the elements (Cadmium, Copper, Iron and Lead) were low in grilled fish followed by fried fish, while the uncooked fish contained the highest metal concentrations
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Item type Current library Home library Call number Copy number Status Date due Barcode
Thesis Thesis قاعة الرسائل الجامعية - الدور الاول المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.12.21.M.Sc.2019.No.P (Browse shelf(Opens below)) Not for loan 01010110079973000
CD - Rom CD - Rom مخـــزن الرســائل الجـــامعية - البدروم المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.12.21.M.Sc.2019.No.P (Browse shelf(Opens below)) 79973.CD Not for loan 01020110079973000

Thesis (M.Sc.) - Cairo University - Faculty of Science - Department of Zoology

The present study aimed to survey some of the ecto and endoparasites infecting selected commercial fish in Egypt. 176 fish specimens representing four different species of four families were collected during the period from January 2015 to February 2016 from Rokn Farouk along the River Nile, Helwan, Egypt. Five different species of monogenean parasites were recovered during the current study which were Cichlidogyrus aegypticus, Cichlidogyrus tilapiae, Gyrodactylus cichlidarum, Protoancylodiscoides malapteruri and Quadriacanthus bagrae. Five different species of digenean parasites were recovered during study which were metacercaria of Euclinostomum heterostomum, metacercaria ofClinostomum complanatum, adults of Orientocreadium batrachoides, Glossidium pedatum and Acanthostomum spiniceps. In addition, two different species of nematode parasites contracaecum sp. and Anisakis simplex were recovered as larvae. Also water quality parameters as well as heavy metals concentrations either in water, sediment or in fish organs were measured seasonally. The results showed that the parasites have ability to accumulate heavy metals in their tissues more than the existing quantities in their hosts which mean that the parasites represent good bioindicators of water pollution. The results showed that the lowest percentage of bioaccumulation of these metals was in the muscles of fish. Also, the effect of different cooking methods of fish on the level of heavy metals in their tissues was detected. It was found that the concentrations of the elements (Cadmium, Copper, Iron and Lead) were low in grilled fish followed by fried fish, while the uncooked fish contained the highest metal concentrations

Issued also as CD

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