Potential Risk And Control Of Contamination In The Gulf Of Aqaba-Jordan

Al-Halasah, N.; Ammary, Bashaar Y.

doi:10.1007/978-1-4020-6385-5_25

Cited by 3 publications

(3 citation statements)

References 11 publications

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“…Additionally, the bay acts as a nursery for commercially valuable fish (Morsy et al, 2010 ). The combination of the oil spills with the structure and ecosystem of this bay resulted in the entrapment of sediments and oil particles, which caused deleterious effects on coral reef reproduction and the photosynthetic cycle (Loya and Rinkevich, 1980 ; Al-Halasah and Ammary, 2007 ).…”

Section: Introductionmentioning

confidence: 99%

Egypt's Red Sea coast: phylogenetic analysis of cultured microbial consortia in industrialized sites

Mustafa

Abd‐Elgawad²,

Abdel-Haleem

et al. 2014

Front. Microbiol.

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The Red Sea possesses a unique geography, and its shores are rich in mangrove, macro-algal and coral reef ecosystems. Various sources of pollution affect Red Sea biota, including microbial life. We assessed the effects of industrialization on microbes along the Egyptian Red Sea coast at eight coastal sites and two lakes. The bacterial communities of sediment samples were analyzed using bacterial 16S rDNA pyrosequencing of V6-V4 hypervariable regions. The taxonomic assignment of 131,402 significant reads to major bacterial taxa revealed five main bacterial phyla dominating the sampled sites: Proteobacteria (68%), Firmicutes (13%), Fusobacteria (12%), Bacteriodetes (6%), and Spirochetes (0.03%). Further analysis revealed distinct bacterial consortia that primarily included (1) marine Vibrio spp.—suggesting a “marine Vibrio phenomenon”; (2) potential human pathogens; and (3) oil-degrading bacteria. We discuss two divergent microbial consortia that were sampled from Solar Lake West near Taba/Eilat and Saline Lake in Ras Muhammad; these consortia contained the highest abundance of human pathogens and no pathogens, respectively. Our results draw attention to the effects of industrialization on the Red Sea and suggest the need for further analysis to overcome the hazardous effects observed at the impacted sites.

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Section: Introductionmentioning

confidence: 99%

Egypt's Red Sea coast: phylogenetic analysis of cultured microbial consortia in industrialized sites

Mustafa

Abd‐Elgawad²,

Abdel-Haleem

et al. 2014

Front. Microbiol.

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“…The following supporting information can be downloaded at: https:// www.mdpi.com/article/10.3390/jmse10070863/s1, Table S1: Sources and level of anthropogenic pressure in the sampling site of the Gulf of Aqaba [29][30][31][32][80][81][82], Table S2: Morphological characterization of mucus bacterial isolates, Table S3: Morphology and characterization of seawater bacteria isolates, Table S4: Biochemical and physiological characterization of bacterial isolates from mucus, Table S5: Biochemical and physiological characterization of bacterial isolates from seawater, Table S6: Phylogeny of bacterial species from coral mucus and surrounding seawater.…”

Section: Supplementary Materialsmentioning

confidence: 99%

“…Coral reefs on the Jordanian coast of the Gulf of Aqaba have been subjected to various sources of environmental stressors in the last few years [29]. The main stressors include coral reef damage caused by tourism, oil spills, air pollution associated with land transportation, disposal of solid waste, phosphate dust deposition from ship loading activities, chemical and thermal pollution from coastal mega industries, and sewage discharges into the marine environment [31,32].…”

Section: Introductionmentioning

confidence: 99%

Effect of Various Local Anthropogenic Impacts on the Diversity of Coral Mucus-Associated Bacterial Communities

Hussein

Juhmani

Jacob

et al. 2022

JMSE

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The global continued decline in coral reefs is intensifying the need to understand the response of corals to local environmental stressors. Coral-associated bacterial communities have been suggested to have a swift response to environmental pollutants. This study aims to determine the variation in the bacterial communities associated with the mucus of two coral species, Pocillopora damicornis (Linnaeus, 1758) and Stylophora pistillata (Esper, 1792), and the coral-surrounding seawater from three areas exposed to contamination at the Jordanian coast of the Gulf of Aqaba (Red Sea), and also explores the antibacterial activity of these bacteria. Corals were collected from three contaminated zones along the coast, and the bacteria were quantified and identified by conventional morphological and biochemical tests, as well as 16S rRNA gene sequencing. The average number of bacteria significantly varied among the coral mucus from the sampling zones and between the coral mucus and the surrounding seawater. The P. damicornis mucus-associated bacterial community was dominated by members of the classes Gammaproteobacteria, Cytophagia, and Actinomycetia, while the mucus of S. pistillata represented higher bacterial diversity, with the dominance of the bacterial classes Gammaproteobacteria, Actinomycetia, Alphaproteobacteria, and Bacilli. The effects of local anthropogenic impacts on coral mucus bacterial communities were represented in the increased abundance of bacterial species related to coral diseases. Furthermore, the results demonstrated the existence of bacterial isolates with antibacterial activity that possibly acted as a first line of defense to protect and maintain the coral host against pathogens. Indeed, the dynamics of coral-associated microbial communities highlight the importance of holistic studies that focus on microbial interactions across the coral reef ecosystem.

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Seasonal monitoring of coral–algae interactions in fringing reefs of the Gulf of Aqaba, Northern Red Sea

Haas¹,

el-Zibdah

Wild³

2009

Coral Reefs

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Potential Risk And Control Of Contamination In The Gulf Of Aqaba-Jordan

Cited by 3 publications

References 11 publications

Egypt's Red Sea coast: phylogenetic analysis of cultured microbial consortia in industrialized sites

Egypt's Red Sea coast: phylogenetic analysis of cultured microbial consortia in industrialized sites

Effect of Various Local Anthropogenic Impacts on the Diversity of Coral Mucus-Associated Bacterial Communities

Seasonal monitoring of coral–algae interactions in fringing reefs of the Gulf of Aqaba, Northern Red Sea

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