Detection of parasites and their risk in some important consumed fish species from Nile River Egypt.

نوع المستند : المقالة الأصلية

المؤلفون

Assistant Professor, Parasitology, Department of Biological and Geological Science, Faculty of Education, Ain Shams University

10.21608/aash.2025.458262

المستخلص

Many parasitic fish-borne zoonoses have primarily affected humans, especially in low and middleincome
countries. The present work aims to investigate the infection by helminth parasites in Nile-Perch
Lates niloticus (Linnaeus, 1758) collected from Nasser Lake in Aswan governorate, Egypt. Out of 25
fish samples (15 males & 10 females), seven (28%) had nematode infections. The mean intensity and
parasitic abundance were 202±345 and 56.56 respectively. The infestation index (IX) was 15.84. The
infection in males was higher (33.33%) than (20%) in females. The nematodes were found in the
abdominal cavity or externally connected to the stomach and duodenum in a tightly capsulated spiral
shape. Using the light microscope, the nematodes were identified and described based on their posterior
end and cephalic area. It was discovered that they belong to the third-stage larvae Contracaecum Railliet
& Henry, 1912 (Family Anisakidae). In conclusion, many parasite illnesses in fish have zoonotic
significance, delaying the fish's reproductive maturity and increasing fish mortality so we must give
great importance to these parasites, study them in detail and study their life cycle to demonstrate their
role in affecting aquatic organisms, especially those of great economic importance such as fish, and try
to find modern ways to combat and eliminate them to achieve a healthy environment free of diseases.

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