موسمية الإنتاج السمكي من المصايد الطبيعية في محافظة الفيوم

Abstract EN

Fish production from natural fisheries in El-Fayoum Governorate at is characterized by a fisheries of Qarun lake, Wadi El-Rayan lakes and Bahr Youssef and its canals, like other Egyptian natural fisheries seasonal fluctuations severe.

Science the enter product of fish catch which represents about 40% of total fish catch from El-Fayoum Governorate fisheries which phrase about 22.4 thousand tons in 2012 despite the fact that water area represents more than 90% of the total fish water resources preservation area estimated at about 100 thousand feddan during the same year , as well as the diversity of environment and water to those of natural fisheries to maintain between saline , brackish and fresh which means diverse fish species trap them between marine species such as Solia and Mullet , and varieties of fresh water such as Tilapia and catfish varieties brackish water mostly fresh water fish , followed by the diversity of the trap varieties of those fisheries the different in breeding seasons dates and lay eggs each.

This research is aims to study seasonality of fish production from those fisheries to keep those items specially during periods of breeding and laying eggs in order to increase the annual fish catch from themThe study based on the use of averages, percentages and seasonal guide to calculate the seasonality of fish production from these natural fisheries during the period 2008-2012.

Among the most important research findings of the study that the seasonal fluctuations of fish production from Wadi El-Rayan lakes is the most sever and the inter intensity by a factor of seasonal estimated at about 51.2, while this factor in karon lake at about 4.8 which means high severity but far less than from those Wadi El-Rayan lakes And virtually no such seasonal fluctuations of fish productions Bahr Youssef and its canals by a factor of as much as about 1.2 only.

Decision – makers in El-Fayoum governorate can organize the Fish supply which caught from the natural fishery throughout the months of the year by identifying the lowest and the highest fish production months.

Fish culture can preservation contribute to the organization that fish supply throughout the private and the resulting fish than a year it contributes about 60% of total fish catch in El-Fayoum Governorate in 2012 , which would maintain the moderate prices of fish in fish markets throughout the year in ElFayoum Governorate.