414253

An Assessment on Population Parameters of the African Catfish, Clarias gariepinus (Burchell, 1822) from Burullus Wetland, Egypt

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Last updated: 09 Mar 2025

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Abstract

The present study aimed to determine some population parameters of the African catfish, Clarias gariepinus (Burchell, 1822) from Burullus Wetland, Egypt. Samples (N=431) were collected with  gillnets between January and December 2022. Their lengths ranged between 18.8 and 76.7cm, and their weights ranged between 40 and 3905g. The sex ratio (1:1.18) were slightly biased toward females. The value of length-weight ratio (LWR) coefficient (b) was calculated as 3.14, 3.25, and 3.18 for females, males, and combined sex, respectively. Therefore, positive allometric growth was recorded. Mean values of condition factors were calculated as K= 0.737± 0.005 and Kn= 0.396± 0.002. The von Bertalanffy growth parameters were estimated as L=86.4cm, K=0.25 year-1, t0= -0.35, φ=3.27 for all samples. The first maturity length (Lm50) was estimated at 28.61 and 30.83cm for females and males, respectively. In conclusion, although African catfish have good growth performance in this region, the C. gariepinus stocks in this Wetland are overexploited.

DOI

10.21608/ejabf.2025.414253

Keywords

Population dynamics, Gillnet, over exploitation, Clarias gariepinus, Brullus Wetland

Authors

First Name

Mohammed

Last Name

Desouky

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Email

dr1stone78@gmail.com

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First Name

Ahmad

Last Name

Azab

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First Name

Emrah

Last Name

Şimşek

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Orcid

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First Name

Aydin

Last Name

Demirci

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Orcid

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First Name

Ahmed

Last Name

Makkey

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Volume

29

Article Issue

1

Related Issue

52748

Issue Date

2025-01-01

Receive Date

2025-02-25

Publish Date

2025-01-01

Page Start

2,653

Page End

2,666

Print ISSN

1110-6131

Online ISSN

2536-9814

Link

https://ejabf.journals.ekb.eg/article_414253.html

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http://journals.ekb.eg?_action=service&article_code=414253

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125

Publication Type

Journal

Publication Title

Egyptian Journal of Aquatic Biology and Fisheries

Publication Link

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

MainTitle

An Assessment on Population Parameters of the African Catfish, Clarias gariepinus (Burchell, 1822) from Burullus Wetland, Egypt

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Article

Created At

09 Mar 2025