Seasonal variations in the abundance and diversity of zooplankton community inhabiting River Nile and its branches at Qena governorate, Upper Egypt.

al., Wafaa A. Mohammad et

doi:10.21608/ejabf.2021.213776

Cited by 2 publications

(2 citation statements)

References 11 publications

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“…Our findings reveal higher diversity, richness, and evenness values for zooplankton, with evenness values exceeding 0.5 across all sites. This suggests that the presence of vegetation and agricultural drainage systems provides ample food resources and favorable conditions for zooplankton growth, consistent with the findings of Mohammad et al [57] in Qena Governorate along the River Nile. The findings underscore the critical importance of comprehending the connections between zooplankton diversity indices and environmental factors.…”

Section: Shannon-weaver Diversity Indexes Richness and Evennesssupporting

confidence: 89%

“…These findings indicate that the sites examined in our study possess high species diversity and richness according to the Shannon-Weaver diversity index. This high diversity and richness of zooplankton species can be attributed to abundant food resources and favorable environmental conditions conducive to population growth and development [57].…”

Section: Shannon-weaver Diversity Indexes Richness and Evennessmentioning

confidence: 99%

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Effect of Environmental Variables on Zooplankton in Various Habitats of the Nile River

Yousef,

El-Mallah,

Abdel-Baki

et al. 2024

Water

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The present study investigated the effect of environmental variables on the abundance and distribution of zooplankton in different habitats along the Nile River in Shattura Village. Zooplankton samples were collected from three distinct sites along the Nile River in Shattura Village, each exhibiting different environmental characteristics: Site 1 with vegetation, site 2 lacking vegetation, and site 3 being a drain canal. The study spanned from spring 2020 to winter 2021, during which the physico-chemical parameters of the water were analyzed. Rotifera constituted the majority of the zooplankton (54.73%), followed by Cladocera (20.59%), Copepoda (13.1%), and Ostracoda (8.9%). Among the 52 identified zooplankton species, Rotifera comprised 18 species, Cladocera 13 species, Copepoda 10 species, and Ostracoda 11 species. Site 1 exhibited the highest zooplankton density (44.08%), attributed to the presence of vegetation, followed by site 3 (37.18%), influenced by agricultural drains, and site 2 had the lowest density (18.73%). Zooplankton abundance peaked in summer and declined in winter. Notably, Rotifera abundance increased in populated sites (site 3), whereas other zooplankton groups thrived in less populated areas. Correlation analyses revealed positive associations between Rotifera and Cladocera with electric conductivity, total dissolved solids (TDS), chloride (Cl), calcium (Ca), and sulfate (SO4). Conversely, Copepoda showed positive correlations with water transparency, pH, dissolved oxygen, and biological oxygen demand (BOD). Overall, seasonal variations significantly impacted the zooplankton community, with Rotifera dominating and Ostracoda being the least abundant. High values of the Shannon–Weaver diversity index, richness, and evenness suggested ample food resources and favorable growth conditions. Transparency, conductivity, pH, dissolved oxygen, and BOD were identified as the key influencing parameters on zooplankton abundance. Additionally, vegetation and agricultural drains strongly influenced total zooplankton levels.

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Section: Shannon-weaver Diversity Indexes Richness and Evennesssupporting

confidence: 89%

Section: Shannon-weaver Diversity Indexes Richness and Evennessmentioning

confidence: 99%

Effect of Environmental Variables on Zooplankton in Various Habitats of the Nile River

Yousef,

El-Mallah,

Abdel-Baki

et al. 2024

Water

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A georeferenced dataset for occurrence records of the phylum Rotifera in Africa

et al. 2023

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We report a dataset of all known and published occurrence records of animals of the phylum Rotifera, including Bdelloidea, Monogononta, and Seisonacea (with the exclusion of Acanthocephala) for Africa and surrounding islands and archipelagos. The dataset includes 24,704 records of 914 taxa (subspecies: 38; species: 783; genus: 76; family: 17), gathered from 610 published papers. The published literature spans from 1854 to 2022, with the highest number of records in the decades 1990-1999 and 2010-2019. The African countries with the highest number of taxa are Nigeria, Algeria, South Africa, and Democratic Republic of the Congo, whereas no records are yet available for a dozen countries. The number of species known from each country can be explained mostly by sampling efforts, measured as the number of papers published for each country up to now. The dataset is available through the Open Science Framework (OSF) and in the Global Biodiversity Information Facility (GBIF).

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Seasonal variations in the abundance and diversity of zooplankton community inhabiting River Nile and its branches at Qena governorate, Upper Egypt.

Cited by 2 publications

References 11 publications

Effect of Environmental Variables on Zooplankton in Various Habitats of the Nile River

Effect of Environmental Variables on Zooplankton in Various Habitats of the Nile River

A georeferenced dataset for occurrence records of the phylum Rotifera in Africa

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