Size Selectivity of Gillnets Applied for Liza carinata in Small-Scale Fisheries in Suez Bay, Gulf of Suez, Egypt

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	Size Selectivity of Gillnets Applied for Liza carinata in Small-Scale Fisheries in Suez Bay, Gulf of Suez, Egypt
Article 127, Volume 28, Issue 4, July and August 2024, Page 2187-2199 PDF (1.19 MB)
Document Type: Original Article
DOI: 10.21608/ejabf.2024.375997
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Author
Hassan et al.
Abstract
Four stretched mesh sizes (30, 34, 38, and 40mm) were used to examine the mesh selectivity of gillnets for the keeled mullet (Liza carinata). In 2021, the experimental fishing operations were carried out in the Suez Bay and Gulf of Suez, the Red Sea. Selectivity on L. carinata was evaluated with the PASGEAR ́ software's SELECT technique (version 2017). The length frequency data were fitted using five different models: bi-normal, normal location, gamma, normal scale, and lognormal distributions. It was found that the normal location model is the ideal selectivity of the gillnet data for Liza carinata. The optimal lengths (100% retention probability) for the 30, 34, 38, and 42mm mesh sizes were 13.6, 13.7, 14.3, and 16.3cm, respectively, for the selectivity curves on the normal location model. According to the study, in order to prevent overfishing of the fish population, gillnets employed in the Suez Bay fishery should have a mesh size of at least 38mm for Liza carinata.
Keywords
Liza carinata; Suez Bay; Gill net; Size selectivity; PASGEAR


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