ANALYSIS OF LOSSES IN BIOMASS AND INCOME FROM THE FISHING GEAR (TRAWL NETS) IN THE EASTERN MEDITERRANEAN, NORTH SINAI, EGYPT
Joma, S., Sakr, S., Radwan, R., Omar, A., Hassanen, G. (2025). ANALYSIS OF LOSSES IN BIOMASS AND INCOME FROM THE FISHING GEAR (TRAWL NETS) IN THE EASTERN MEDITERRANEAN, NORTH SINAI, EGYPT. EKB Journal Management System, 14(1), -. doi: 10.21608/sinjas.2025.336944.1298
Saif M. Joma; Salah El_sayed Sakr; Reyad I. Radwan; Attia Ali Omar; Gaber D.I. Hassanen. "ANALYSIS OF LOSSES IN BIOMASS AND INCOME FROM THE FISHING GEAR (TRAWL NETS) IN THE EASTERN MEDITERRANEAN, NORTH SINAI, EGYPT". EKB Journal Management System, 14, 1, 2025, -. doi: 10.21608/sinjas.2025.336944.1298
Joma, S., Sakr, S., Radwan, R., Omar, A., Hassanen, G. (2025). 'ANALYSIS OF LOSSES IN BIOMASS AND INCOME FROM THE FISHING GEAR (TRAWL NETS) IN THE EASTERN MEDITERRANEAN, NORTH SINAI, EGYPT', EKB Journal Management System, 14(1), pp. -. doi: 10.21608/sinjas.2025.336944.1298
Joma, S., Sakr, S., Radwan, R., Omar, A., Hassanen, G. ANALYSIS OF LOSSES IN BIOMASS AND INCOME FROM THE FISHING GEAR (TRAWL NETS) IN THE EASTERN MEDITERRANEAN, NORTH SINAI, EGYPT. EKB Journal Management System, 2025; 14(1): -. doi: 10.21608/sinjas.2025.336944.1298

ANALYSIS OF LOSSES IN BIOMASS AND INCOME FROM THE FISHING GEAR (TRAWL NETS) IN THE EASTERN MEDITERRANEAN, NORTH SINAI, EGYPT

Sinai Journal of Applied Sciences
Article 2, Volume 14, Issue 1, January and February 2025  XML
Document Type: Researches
DOI: 10.21608/sinjas.2025.336944.1298
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Authors
Saif M. Joma email 1; Salah El_sayed Sakr1; Reyad I. Radwanorcid 2; Attia Ali Omar3; Gaber D.I. Hassanenorcid 1
1Dept. Aquaculture, Fac. Environ. Agric. Sci., Arish Univ., Egypt.
2Dept. Econ. and Rural Develop., Fac. Environ. Agric. Sci., Arish Univ., Egypt.
3National Institute of Oceanography and Fisheries NIOF, Egypt.
Abstract
The average production of one trowel boat operating off the coast of Sinai was calculated, during fishing season 2021 were 34.9 tons. The negative impact of the Trowel net on the Mediterranean catch on the Sinai coast was studied by taking monthly samples of 20 kg of each type during 2021. Fish were distributed to small fish and mature fish according to length at first maturity according to previous studies of these species in the same area or adjacent areas. The results showed that the percentage of small fish 47.4% of the production of the Trowel net. The negative impact on the biomass from juvenile and ELafsha were 3.16; 5.04; 6.25; 9.21; 1.41; 4.51; 9.13; 5.84; 1.37; 0.59; 2.52; 7.35; 6.39; 1.23; 0.26 and 3.73 ton (total 68 tons) and losses income were 0.789; 0.605; 1.563; 2.302; 0.311; 0.451; 0.467; 0.356; 0.913; 0.147; 0.328; 2.557; 0.098; 0.037; and 0.521 (total 12.04 million L.E.) from shrimp; Crabs; Cattle fish; Squids; Bogue; Med. Horse ; Common Sole; Atlantic Lizard Fish; Red mullet; Grey gurnard; Common pandora; Grouper; Gobius niger; European eel and Merluccius respectively for one Trowel net during fishing season 2021 in the Mediterranean coast Sinai.
Keywords
Trowel net; length at first maturity; The negative impact; biomass; losses income
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