Prevalence of Gastrointestinal Parasites Infecting Fish (Clarias Gariepinus) in Qena Governorate

Abstract

Parasites of fish are of concern since they often produce a weakening of the host`s immune system thereby increasing their susceptibility to the secondary infections, resulting in the nutritive devaluation of fish ,compete for food, depriving fish of essential nutrients, inhibiting growth leading to morbidity and mortality and subsequent economic losses. Few data has been reported to identify major parasite of fish in Qena Governorate, Egypt. Accordingly, the study aimed to estimate the prevalence of gastrointestinal parasite infecting fish. Afield study was conducted during the period from the beginning of January 2015 to the end of December 2016.A total of 144 Clarias gariepinus (Carmoot) fish samples were collected either alive from fishermen or fresh as possible from fish markets at Qena Governorate for parasitological studies. Parasite collected and prepared then identified under the microscope. Out of 144 examined fish 84 (58.3%) samples were infected with different gastrointestinal parasites. The obtained results found that the most frequent parasitic infection among examined fish was cstodes with an infection rate of (35.4%) ,followed by trematodes infection (27%), while the lowest infection rate, were recorded in nematodes infection(16.7%),Regarding to the seasonal prevalence of the recovered parasites, we concluded that the highest rate of parasite infection was observed during Spring season (83.3%), followed by Winter (66.7%), Summer recorded (50%) and Autumn season which represented the lowest rate of infection (33.3%). The most common species of cestodes were Monobothrium sp which recorded the highest infection rate (27.8%) and Polyonchobothrium clarias (5.6%), followed by trematode species Orientocreadium batrachoides (24.3%) and nematode species Paracamallanus cyathopharynx (10.4%) and Procamallanus laevionchus (5.6%).

Parasitosis in Clarias Gariepinus and Its Relation to Some Environmental Conditions in Assiut Governorate, Egypt

“…In the present study, endo-parasites, trematode was (26%). This nearly agreed with El-Seify et al (2017) in Qena reported (27%), but higher than Abdel-Gaber et al (2015) in Lake Manzala reported (8.33%). The high rate was in summer (42.3%), followed by spring (34.6%) autumn (15.4%) then winter (7.7%).…”

“…But, this disagreed with Shaheen et al (2014) found the highest rate in spring followed by summer, autumn and winter. El-Seify et al (2017) reported a high infection rate in spring, followed by summer, winter and autumn. The differences may be due to different temperature and humidity, influencing the parasites abundance by enhances suitable conditions for snail hosts (Paull and Johnson, 2011).…”

Parasitic Helminths of the Freshwater Catfish (Clarias Gariepinus) From Fayoum Governorate, Egypt

“…Regarding the seasonal variations, the highest infection rate was recorded in spring, while the lowest one was recorded in autumn. Same results were previously recorded at other governorates (Kafr El-Sheikh and Qena) in Egypt [10,11] . On the other hand, Hefnawy et al [12] recorded the highest infection rate of Clarias gariepinus with helminths in summer and spring.…”

“…in the present study was 13.3%, which was very close to that reported by Eissa et al [10] (14.5%). The prevalence of this worm in the present study was lower than that described by other researchers [11,23,24] . This may be attributed to various factors, such as the difference in locality, climate conditions, the numbers of examined fishes, seasonal variations and the different hydrobiological factors, which play an important role in the transmission of the parasites.…”

Prevalence and Morphological Investigation of Parasitic Infection in Freshwater Fish (Nile Tilapia) from Upper Egypt

“…A study [ 69 ] in Cairo detected the highest prevalence in autumn and the lowest in the summer, while a previous work [ 1 ] in Kafr El-Sheikh recorded the highest infection rates in autumn and winter. This difference might reflect the reduced feeding activity of fish at low temperatures, thus reducing the chances of infection via copepods [ 70 ].…”