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37828

Population Biology and Dynamics of Fringelip Mullet Crenimugil crenilabis, Forsskål, 1775 from Southern Red Sea, Egypt

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Last updated: 01 Jan 2025

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Abstract

This study was conducted to assess the biologicalcharacteristics and growth pattern of Crenimugil crenilabis for the first attempt in the Egyptian Red Sea. C. crenilabis is a rewarding fish in the Red Sea small scale fishery. 350 samples were obtained seasonally during the period 2017 to 2018 from the commercial fishery operating in Shalatin, southern Egyptian Red Sea.  Total length was varied from 24.0 to 49.4 cm (35.0 cm mean, SD: 4.75) and total weight ranged from 157.0 to 1265.0 g (476.58 g mean, SD: 214.47). The weight at length relationship showed an isometric growth pattern (b= 3.052). The von Bertalanffy growth constants K and L∞ were estimated using ELEFAN I method. The growth parameters were found to be K= 0.36/year and L∞=51.5 cm. The annual total mortality coefficient (Z), natural mortality (M) and fishing mortality (F) were estimated to be 1.26, 0.73 and 0.53/ year respectively. The length at first capture (Lc) was calculated at 35.65 cm, while the length at first maturity (Lm50) was found to be 32.7 for males and 33.3 cm for females. The exploitation rate of C. crenilabis was determined as 0.42, indicating the under- exploited level where the maximum exploitation level reported was 0.5. Thus the study recommended preserving the current level of exploitation rate to conserve the population stock of C. crenilabis from the breakdown.     

DOI

10.21608/ejabf.2019.37828

Keywords

Red Sea, Crenimugil crenilabis, Fringelip Mullet, Commercial fishery, Population Biology, Population dynamics

Authors

First Name

Manal

Last Name

M. Sabrah

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First Name

Azza

Last Name

A. El-Ganainy

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First Name

Rasha

Last Name

A. Heneish

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Volume

23

Article Issue

3

Related Issue

5690

Issue Date

2019-07-01

Receive Date

2019-06-16

Publish Date

2019-07-01

Page Start

117

Page End

125

Print ISSN

1110-6131

Online ISSN

2536-9814

Link

https://ejabf.journals.ekb.eg/article_37828.html

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https://ejabf.journals.ekb.eg/service?article_code=37828

Order

11

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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

Population Biology and Dynamics of Fringelip Mullet Crenimugil crenilabis, Forsskål, 1775 from Southern Red Sea, Egypt

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Article

Created At

22 Jan 2023