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2 Oceanological Studies

2 2002

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Species composition and size structure of beach seine by-catches in Port-Said fishing harbour, Egypt

El-Mor M., El-Etreby S., Sapota M.R.

Oceanological Studies

2002

Vol. 31, No. 3-4

31-43

The trash catch of the Egyptian Mediterranean small beach seine operating in Port-Said fishing harbour at the entrance of the Suez Canal during the period from January to December 1997 was analyzed. It amounted about 3-5 kg per haul composed of three categories: juveniles of commercially important species (76.6%), low-valued small size fish species (11.2%) and 12.2% of non-edible "trash" species. The amount of trash catch constituted about 20-25% of the total landing of beach seine. It was classified into 42 species representing 24 families. Among these, 17 species are known to be of Red Sea origin. Three species Siganus rivulatus, (recruitment in October), Terapon puta (recruitment in August and September) and Pomadasys incisus (recruitment in January and February) dominated the assemblage of 42 species and contributed 53.8% of all sampled fishes.

A study on trash catch of the bottom trawl along Port-Said coast, Egypt

El-Mor M., El-Etreby S., Mohammad S., Sapota M.R.

Oceanological Studies

2002

Vol. 31, No. 3-4

45-55

The trash catch of an Egyptian Mediterranean trawling net was analyzed. The catch amounted to approximately 15-20 kg per haul, composed of three categories: Juveniles of commercially important species (86.5%), Low-value small size fish species (5.5%) and non-edible species (7.9% of the total trash catch). In the catch, 35 species were identified representing 22 families. Among these, 11 species are known to be of Red Sea origin. The amount of trash catch constituted about 15-20% of the total landing of trawling net. Three species, Diplodus annularis (recruit in July and August), Dicentrarchus punctatus (recruit in June and July) and Sardinella aurita (recruit in September and October) were the most abundant fish species representing 20.5%, 18.9% and 17.9% of the total trash respectively.