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317133

Age, Growth, Mortality and Exploitation level of the Squirrelfish, Neoniphon Sammara (Forsskal, 1775) From Hurghada, Red Sea, Egypt

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Last updated: 01 Jan 2025

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Abstract

Age, growth, and mortality of sammara squirrelfish Neoniphon sammara from the Red Sea were estimated for monthly samples collected during the period from January 2022 to December 2022 from the commercial catch of Hurghada, Red Sea, Egypt. The total length of sampled individuals ranged from 14 to 21.0 cm for males and 14.5 – 21.9 cm for females and there is no significant difference in the length frequency distribution between sexes. The length–weight relationship showed negative allometric growth for male, female, and combined sexes and there is no significant difference between males and females in b-values. The ages of the specimens ranged from 2 to 5 years where age group one was not represented in the samples. As there is no significant difference between sexes, von Bertalanffy growth parameters were calculated for sexes combined and found to be L∞= 26.49 cm, k= 0.28/year, t0 = –0.71 year for all samples. According to age–structure analysis, the total, natural, and fishing mortality rates were calculated as 1.39, 0.57, and 0.82, respectively. Accordingly, the exploitation level of this species exceeds the optimum level showing an overfishing situation of this species in the Hurghada fishing area, Egyptian Red Sea.

DOI

10.21608/ejabf.2023.317133

Keywords

Growth, mortality, squirrelfish, Neoniphon Sammara, Red Sea, Egypt

Authors

First Name

Samia M.

Last Name

El-Mahdy et al.

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Volume

27

Article Issue

5

Related Issue

43340

Issue Date

2023-09-01

Receive Date

2023-09-12

Publish Date

2023-09-01

Page Start

51

Page End

63

Print ISSN

1110-6131

Online ISSN

2536-9814

Article File

EJABF_Volume 27_Issue 5_Pages 51-63.pdf

PDF . 575.0kB

Link

https://ejabf.journals.ekb.eg/article_317133.html

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https://ejabf.journals.ekb.eg/service?article_code=317133

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4

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Original Article

Type Code

103

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Journal

Publication Title

Egyptian Journal of Aquatic Biology and Fisheries

Publication Link

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

MainTitle

Age, Growth, Mortality and Exploitation level of the Squirrelfish, Neoniphon Sammara (Forsskal, 1775) From Hurghada, Red Sea, Egypt

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Article

Created At

23 Dec 2024