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273376

Meiobenthic Assemblages in some Coral Reef Sites in Marsa Alam (Red Sea, Egypt) with Emphasis on Free Living Nematodes

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Last updated: 01 Jan 2025

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Abstract

Meiofauna from three coral reef sites in Marsa Alam along the Egyptian Red Sea coast was quantitatively studied. Sediment samples were collected from a depth of 7 meters from the sand flat between the seagrass bed and the reef crest in each site. Water temperature and salinity were homogeneous, while the sediment's median grain sizes and total organic matter percentages varied. Total densities were higher in sites II and III and showed relatively similar sediment characteristics than that found in site I. Nematoda (38%), Copepoda (25%), and Polychaeta (22%) were the most common taxa at all investigated sites, with a maximum in August and a minimum in February. Spearman correlation coefficients showed significantly strong positive values between all meiofaunal taxa and temperature. A total of 10 nematode families were recorded. Among them, Chromadoridae, Cyatholaimidae, and Xyalidae were the most abundant (74%). Epi-growth feeding dominated all feeding types and accounted for 73% of total nematodes. The high similarities in the meiofaunal and nematofaunal composition among sites suggested the significance of sediment characteristics as a factor impacting community structure. 

DOI

10.21608/ejabf.2022.273376

Keywords

Meiofauna, Coral reef, Nematodes, Red Sea, Egypt

Authors

First Name

Deyaaedin A.

Last Name

Mohammad

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Volume

26

Article Issue

6

Related Issue

37580

Issue Date

2022-11-01

Receive Date

2022-12-09

Publish Date

2022-11-01

Page Start

495

Page End

510

Print ISSN

1110-6131

Online ISSN

2536-9814

Link

https://ejabf.journals.ekb.eg/article_273376.html

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https://ejabf.journals.ekb.eg/service?article_code=273376

Order

30

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

Meiobenthic Assemblages in some Coral Reef Sites in Marsa Alam (Red Sea, Egypt) with Emphasis on Free Living Nematodes

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Article

Created At

22 Jan 2023