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68009

Fishery status of the longnose parrotfish, Hipposcarus harid (Forsskal, 1775) in the southern Red Sea, Shalateen, Egypt.

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Last updated: 01 Jan 2025

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Abstract

This is the first analysis for estimating the essential fisheries indices for Hipposcarus haridfrom Shalateen fishing port on the northern Red Sea coast of Egypt. The age was predicted by using scales reading for 179 fish collected through the fishing season from 2014 to 2016. Six age groups were observed for sexes combined. Calculated "b" value was 2.899 showed negative allometric growth. The estimated Von Bertalanffy growth parameters was L = 55.95 cm, K = 0.22 year-1and t0 = -0.724year1. The rate of total mortality (Z) was (1 year–1), natural mortality (M) was 0.30 lower than the fishing mortality (F= 0.70). The exploitation ratio (E = 0.70) was higher and exceeded the 0.5 optimal values for sustainable yield. The length at first capture (Lc= 20.6cm, 1.3year) was lower than the length at first sexual maturity (Lm= 22.3 and 23.5 cm; 1.6 and 1.8 years) for males and females respectively). In addition, (F=0.70 year–1) was higher than the target biological reference point (Fopt=0.15; Flimi= 0.2; Fmax =0.43 and F0.10 =0.3). By using the reference points of Emax, E0.1, and E0.5, current exploitation rates suggest unsustainable stocks for this species in the Shalateen fishing port. 

DOI

10.21608/ejabf.2019.68009

Keywords

Hipposcarus harid, longnose parrotfish, Age, Growth, mortality, exploitation rate, Red Sea, Shalateen port

Authors

First Name

Amal

Last Name

M. Amin

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Orcid

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First Name

Azza

Last Name

A. El-Ganainy

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Orcid

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First Name

Manal

Last Name

M. Sabrah

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Volume

23

Article Issue

5 (Special Issue)

Related Issue

9471

Issue Date

2019-12-01

Receive Date

2019-12-05

Publish Date

2019-12-29

Page Start

451

Page End

459

Print ISSN

1110-6131

Online ISSN

2536-9814

Link

https://ejabf.journals.ekb.eg/article_68009.html

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https://ejabf.journals.ekb.eg/service?article_code=68009

Order

32

Type

Original Article

Type Code

103

Publication Type

Journal

Publication Title

Egyptian Journal of Aquatic Biology and Fisheries

Publication Link

https://ejabf.journals.ekb.eg/

MainTitle

Fishery status of the longnose parrotfish, Hipposcarus harid (Forsskal, 1775) in the southern Red Sea, Shalateen, Egypt.

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Article

Created At

22 Jan 2023