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377650

Population Dynamics and Exploitation Rate of Bronze Featherback (Notopterus notopterus, Pallas, 1769) for Sustainable Management in Huai Kho Reservoir, Na Chueak District, Maha S

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Last updated: 01 Jan 2025

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Abstract

The study on Bronze Featherback in Huai Kho Reservoir examined 273 specimens, with fork lengths ranging from 105 to 295mm and an average length of 185.80 ± 27.05mm. The fish exhibited a strong length-weight correlation, with an allometric coefficient (b) greater than 3.00, indicating a positive allometric growth. Growth parameters included an asymptotic length (L∞) of 309.75mm and a growth coefficient (K) of 0.10. Capture probabilities were 108.99 (L25%), 186.52 (L50%), and 191.44mm (L75%). Mortality rates were measured with a total mortality rate (Z) of 1.07 per year, natural mortality (M) at 0.22 per year, and fishing mortality (F) at 0.86 per year. Recruitment peaks occurred from June to August, and replacement rates were the highest from July to September. The current exploitation rate (E) of 0.80 exceeds the maximum sustainable rate (Emax) of 0.724. The total steady-state biomass was 10.57 tons. To promote sustainable management, it is recommended to regulate fishing gear and enforce a fishing ban during the spawning season.

DOI

10.21608/ejabf.2024.377650

Keywords

Population dynamics, exploitation rate, Notopterus notopteru, sustainable management, Huai Kho Reservoir

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First Name

Khowhit

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et al.

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Volume

28

Article Issue

5

Related Issue

50139

Issue Date

2024-09-01

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2024-09-01

Publish Date

2024-09-01

Page Start

219

Page End

237

Print ISSN

1110-6131

Online ISSN

2536-9814

Link

https://ejabf.journals.ekb.eg/article_377650.html

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https://ejabf.journals.ekb.eg/service?article_code=377650

Order

13

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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 Dynamics and Exploitation Rate of Bronze Featherback (Notopterus notopterus, Pallas, 1769) for Sustainable Management in Huai Kho Reservoir, Na Chueak District, Maha S

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Article

Created At

23 Dec 2024