Spatial and temporal variability of saprophytic and water quality bacteria along the coast of the Aqaba and Suez Gulfs and Red Sea, Egypt

El-Shenawy, Mohamed A.; Farag, Aïda M.

doi:10.1080/08910600510037217

Cited by 7 publications

(7 citation statements)

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“…In 2011, TC, EC, and FS in water samples were used as indicators of microbial pollution. This study reported that the Suez Gulf is the most polluted among 194 sites in the Red Sea and Gulf of Aqaba (El-Shenawy and Farag, 2005; Ibrahim et al, 2011). …”

Section: Introductionmentioning

confidence: 89%

“…Two studies have addressed human pathogens along the Red Sea coast (El-Shenawy and Farag, 2005; Ibrahim et al, 2011). In one study, the researchers measured the abundance of saprophytic (SB), salt-tolerant saprophytic (STSB), total coliforms (TC), Escherichia coli (EC) and fecal streptococci (FS) in 40 sites along the Egyptian Red Sea coastal waters and in the Aqaba and Suez Gulfs.…”

Section: Introductionmentioning

confidence: 99%

“…In one study, the researchers measured the abundance of saprophytic (SB), salt-tolerant saprophytic (STSB), total coliforms (TC), Escherichia coli (EC) and fecal streptococci (FS) in 40 sites along the Egyptian Red Sea coastal waters and in the Aqaba and Suez Gulfs. Of these samples, 91.5% met “European and Egyptian current standards” (El-Shenawy and Farag, 2005). In 2011, TC, EC, and FS in water samples were used as indicators of microbial pollution.…”

Section: Introductionmentioning

confidence: 99%

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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: 89%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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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 different anthropogenic activities included recreational resorts, urban agglomeration, marine shipping, activities of phosphate industry and fishing ports, as well as limited freshwater and sewage sources. 2,20 The present study was conducted in order to monitor, investigate and Ecological Risk Assessment the accumulation of heavy metals (Cu, Cd, Zn, Ni and Pb) in coastal sediments in the intertidal zones between Al-Haymah and Al-Mokha of south Red Sea Coast Yemen.…”

Section: Introductionmentioning

confidence: 99%

Ecological risk assessment of heavy metals in coastal sediments between Al-Haymah and Al-Mokha, south red sea, Yemen

Al-Edresy¹,

Wasel²,

Al-Hagibi³

2019

IJH

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The study area extends from Al-Haymah to south Al-Mokha along Red Sea and covering a distance of about 90 Km along the shore line, Int J Hydro. 2019;3(2):159-173.Ecological risk assessment of heavy metals in coastal sediments between Al-Haymah and Al-Mokha, south red sea, Yemen Abstract The area between Al-Haymah and Al-Mokha on the Red Sea of Yemen is a promising region for future tourism development. It is also characterized by population activities, especially fishing in more than one location and there is a commercial port in Al-Mokha. The aim of the present study is to investigate the distribution of heavy metals (Cu, Cd, Zn, Ni and Pb) and Ecological Risk Assessment to assess the contamination levels of the coastal surface sediments. Distribution and ecological risk for Cu, Cd, Zn, Ni and Pb in sediment samples collected from 11 regions (37 stations) in the coasts of Yemen were studied. The results showed that the most of sediments are sand (83.83%), the content of organic matter was low (1.4%) and rich of calcium carbonate (56.1%), while the heavy metals arranged according to their abundance as follows: Zn>Cu>Ni>Pb>Cd. The contamination factor values for heavy metals arranged according to their dangerous as follows: Cd>Cu>Zn>Pb>Ni, and the potential ecological risk index values for heavy metals, according to the order evaluation of pollution in the various regions as follows: Qataba>Al-Mokha>North Al-Mokha>Al-Ruays>Abu-Zahr>South Al-Mokha>Zahari>Al-Khowkhah>Al-Haymah>Yokhtul>Moushij. The present study shows that the coastal sediments in this part of the Red Sea coast of Yemen are not Polluted by heavy metals (Cu, Zn, Ni and Pb), but it heavily polluted by Cd. Ecological risk assessment of heavy metals in coastal sediments between Al-Haymah and Al-Mokha, south red sea, Yemen 160 Copyright: ©2019 Al-Edresy et al. Citation: Al-Edresy MAM, Wasel SO, Al-Hagibi HA. Ecological risk assessment of heavy metals in coastal sediments between Al-Haymah and Al-Mokha, south red sea, Yemen. Int J Hydro. 2019;3(2):159-173. Ecological risk assessment of heavy metals in coastal sediments between Al-Haymah and Al-Mokha, south red sea, Yemen 161 Copyright: ©2019 Al-Edresy et al. Citation: Al-Edresy MAM, Wasel SO, Al-Hagibi HA. Ecological risk assessment of heavy metals in coastal sediments between Al-Haymah and Al-Mokha, south red sea, Yemen. Int J Hydro. 2019;3(2):159-173. Ecological risk assessment of heavy metals in coastal sediments between Al-Haymah and Al-Mokha, south red sea, Yemen 162 Copyright: ©2019 Al-Edresy et al. Citation: Al-Edresy MAM, Wasel SO, Al-Hagibi HA. Ecological risk assessment of heavy metals in coastal sediments between Al-Haymah and Al-Mokha, south red sea, Yemen. Int J Hydro. 2019;3(2):159-173. Citation: Al-Edresy MAM, Wasel SO, Al-Hagibi HA. Ecological risk assessment of heavy metals in coastal sediments between Al-Haymah and Al-Mokha, south red sea, Yemen. Int J Hydro. 2019;3(2):159-173. Ecological risk assessment of heavy metals in coastal sediments between Al-Haymah and Al-Mokha, south red sea, Y...

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“…The Red Sea environments receive either locally or more widely, a variety of stresses as a result of human activities. The different anthropogenic activities included recreational resorts, urban agglomeration, marine shipping, activities of phosphate industry and fishing ports, as well as limited freshwater and sewage sources [2,19].…”

Section: Introductionmentioning

confidence: 99%

Ecological Risk Assessment of Heavy Metals in Coastal Sediments between Al-Haymah and Al-Mokha, South Red Sea, Yemen

Al-Hagibi¹

2019

ECOA

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the highest concentrations of toxic heavy metals in marine environment are found in sediments [1,6,7].Coastal sediments are important hosts for heavy metal pollution and play an important role in determining the fate and effects of a wide variety of contaminants [8]. Vertical concentration gradients of heavy metals in sediment cores can provide temporal information about the perturbation in the aquatic environment [9]. The distribution of metals in sediment is very important from the point of view of environmental pollution because sediment concentrates metals from aquatic systems and represents an appropriate medium to monitor contamination due to sediments are the principal sinks for heavy metals in an aquatic system [1,7,10].

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Spatial and temporal variability of saprophytic and water quality bacteria along the coast of the Aqaba and Suez Gulfs and Red Sea, Egypt

Cited by 7 publications

References 15 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

Ecological risk assessment of heavy metals in coastal sediments between Al-Haymah and Al-Mokha, south red sea, Yemen

Ecological Risk Assessment of Heavy Metals in Coastal Sediments between Al-Haymah and Al-Mokha, South Red Sea, Yemen

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