Beta
94721

Benthic fauna and microbial communities as a bio-indicator for the characteristics of the marine environment in the Suez Bay , Red Sea , Egypt.

Article

Last updated: 22 Jan 2023

Subjects

-

Tags

-

Abstract

Environmental variables were measured with benthic fauna and bacterial organisms to assess water quality and sediments in the Suez Bay. A total of 62 species belonging to five taxonomic groups (Polychaeta, Mollusca, Crustacea, Echinodermata and Urochordata) were collected from benthic fauna at thirteen stations extending from Summer (2019) to Winter (2020) along the intertidal zone of the Suez Bay. Polychaeta accounted for 38.71% and 47.3% of the total number of species and individuals, respectively. While, Urochordata represented by one species and 50 indivi./m². In the Suez Bay, bacterial populations are present in the water with an annual density of 21598 cfu / 100ml with an average of 1661.4. At the same time they are present in the sediments with a numerical density of 16331 cfu / g with an average of 1256.23. Dissolved oxygen (DO), Biological Oxygen Demand (BOD) and Chemical Oxygen Demand (COD) of tested samples ranged between 3.2 - 6.45 mgO2/l ; 0.995 -2.298 mg/l ; 2.298- 4.69 mg/l , respectively. This investigations revealed that, with the exception of the alien ; dominant and adherent rocks species (Spirobranchus kraussii and Brachidontes pharaonis), microbial components tend to increase their dominance, while bottom organisms were reduced during the entire study period. In addition ,this study indicated that there is a direct relationship with both salinity, dissolved oxygen and macro-benthic invertebrates, and at the same time there is an inverse relationship between them and bacterial counts, indicating thus a predominant effect of anthropogenic activities in the coastal area of Suez Bay.

DOI

10.21608/cat.2020.24899.1043

Keywords

Benthic fauna, microbial communities, bio-indicator, Suez Bay, Red Sea

Authors

First Name

Aisha

Last Name

Belal

MiddleName

-

Affiliation

Associate Professor National institute of oceanography and fisheries, Cairo, Egypt.

Email

aisha_belal29@yahoo.com

City

Ismailia

Orcid

0000-0003-2744-0367

First Name

Mahmoud

Last Name

Kelany

MiddleName

-

Affiliation

Researcher at National Institute of Oceanography and Fisheries, Cairo, Egypt.

Email

mahmoudscience88@yahoo.com

City

Cairo

Orcid

0000-0002-3049-4529

First Name

Ahmed

Last Name

Elgendy

MiddleName

-

Affiliation

Researcher at National Institute of Oceanography and Fisheries, Cairo, Egypt.

Email

ah_algendy@yahoo.com

City

Cairo

Orcid

-

First Name

Moaz

Last Name

Hamed

MiddleName

-

Affiliation

Researcher at National Institute of Oceanography and Fisheries, Cairo, Egypt.

Email

moaz-micro@hotmail.com

City

Hurghada

Orcid

0000-0002-2608-085X

Volume

21

Article Issue

1

Related Issue

14026

Issue Date

2020-06-01

Receive Date

2020-02-29

Publish Date

2020-06-01

Page Start

61

Page End

73

Print ISSN

1687-5052

Online ISSN

2090-2786

Link

https://cat.journals.ekb.eg/article_94721.html

Detail API

https://cat.journals.ekb.eg/service?article_code=94721

Order

8

Type

Original Article

Type Code

644

Publication Type

Journal

Publication Title

Catrina: The International Journal of Environmental Sciences

Publication Link

https://cat.journals.ekb.eg/

MainTitle

-

Details

Type

Article

Created At

22 Jan 2023