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68904

Distribution of Zooplankton Community in the River Nile at Esna Barrages, Egypt in relation to some ecological factors

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Last updated: 01 Jan 2025

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Abstract

In riverine systems, zooplankton communities are usually thought to be driven by abiotic forces. This study was designed to assess the effect of ecological factors on the distribution of zooplankton community in the River Nile at Esna barrages which located 1.2 km downstream the old barrages. Monthly samples were collected during a period of one year from six sites situated in the River Nile, (upstream and downstream) of Esna Barrages. Seven physic-chemical parameters were measured during sampling using electronic portable instruments: air and water temperature, hydrogen ion concentration, dissolved oxygen, conductivity, total dissolved solids and turbidity. The collected zooplankton groups were Cladocera, Copepoda and Ostracoda where Cladocera exhibited the highest peak of density. The highest value of total abundance of zooplankton was recorded during winter 40% and the lowest value was recorded during summer 11%. The results indicated that Turbidity, pH and conductivity were the most affecting factors on abundance of all zooplankton groups during the study. Cladocera group correlated significantly with dissolved oxygen (p>0.01) and pH (p<0.01). Moreover, temperature and turbidity were the most affecting factors on Copepoda, while Ostracoda was affected by pH and conductivity.

DOI

10.21608/ejabf.2020.68904

Keywords

Zooplankton, River Nile, Esna barrages, physical parameters, chemical parameters

Authors

First Name

Ahmad

Last Name

H. Obuid-Allah

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Orcid

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First Name

Ahmed

Last Name

S. Moustafa

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Affiliation

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Orcid

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First Name

ElAmier

Last Name

H. M. Hussien

MiddleName

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Affiliation

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Orcid

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First Name

Azza

Last Name

M. Gaber

MiddleName

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Affiliation

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Orcid

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First Name

Wafaa

Last Name

A. Mohammad

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Volume

24

Article Issue

1

Related Issue

10207

Issue Date

2020-01-01

Receive Date

2020-01-04

Publish Date

2020-01-22

Page Start

131

Page End

143

Print ISSN

1110-6131

Online ISSN

2536-9814

Article File

EJABF_Volume 24_Issue 1_Pages 131-143.pdf

PDF . 690.3kB

Link

https://ejabf.journals.ekb.eg/article_68904.html

Detail API

https://ejabf.journals.ekb.eg/service?article_code=68904

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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

Distribution of Zooplankton Community in the River Nile at Esna Barrages, Egypt in relation to some ecological factors

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Article

Created At

22 Jan 2023