The effect of water quality on the distribution of macro-benthic fauna in Western Lagoon and Timsah Lake, Egypt.I

Belal, Aisha Ahmed Mohammed; El-Sawy, M.; Dar, Mahmoud A.

doi:10.1016/j.ejar.2016.12.003

Cited by 22 publications

(10 citation statements)

References 27 publications

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“…Munzur Stream is a Class 3 at S5 and S6, while it is Class 2 at other stations in terms of the nitrite value according to the classes of intra-continental water resources. On the other hand, according to the WHO, S3, S5 and S6 were higher than the WHO values, and the others were below the upper limit (Belal et al 2016). Additionally, methemoglobinemia, blue baby syndrome, stomach cancer, abnormal pain, central nervous system disorders and diabetes in animals and humans are caused by a high concentration of nitrates in drinking water (Belal et al 2016).…”

Section: Physical and Chemical Features Of Surface Watermentioning

confidence: 99%

The assessment of health risk from heavy metals with water indices for irrigation and the portability of Munzur Stream: A case study of the Ovacık area (Ramsar site), Türkiye

Kutlu

Sarıgül

2023

OandHS

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Surface water samples from the area of Munzur Stream in Türkiye (a Ramsar site) were evaluated for their suitability for irrigation and drinking purposes using different water quality indices. The human health risks were assessed as well. The study was conducted over a period of 24 months from January 2019 to December 2021 by taking samples from nine stations every month in order to determine the water quality of Munzur Stream, located in Tunceli. According to the results, Munzur Stream is in good condition in terms of the quality of drinking water and irrigation water. The concentrations of heavy metals such as Cu, Ni, Fe and Hg were high, though the water quality parameter according to Türkiye Ministry of Forestry and Water Affairs Surface Water Quality Regulations (TSWQR) was significantly lower than the permitted limits. In Munzur Stream, the irrigation water for all stations was reported to be excellent, good and suitable in terms of SAR, Na% and MH, respectively. The principal component analysis data formed the four principal components, explaining 98.22% of the total variance. The sources of pollution in this area include the rock types of the basin, soil erosion, domestic waste water discharge and agricultural flow of inorganic fertilisers.

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Section: Physical and Chemical Features Of Surface Watermentioning

confidence: 99%

The assessment of health risk from heavy metals with water indices for irrigation and the portability of Munzur Stream: A case study of the Ovacık area (Ramsar site), Türkiye

Kutlu

Sarıgül

2023

OandHS

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“…Table (1) demonstrates the contribution of the various macro-benthos species to the communities at each sample groups. At all studied sampling groups, the total macrobenthos's abundance was almost entirely dominated by Pocillipora verrucosa (hard coral), represented 12.31%, 10.07%, 10.19%, 12.76% and 17.91% at Hs, Ms, Hw, Mw and Pw, sample groups respectively.…”

Section: Abundance Of the Macro-benthosmentioning

confidence: 99%

“…Also, burrowing into sediments leading to increased growth of benthic microbes, algae, and rooted macrophytes which in turn consumed by herbivorous and omnivorous benthic invertebrates. Finally, predator benthic invertebrates can control the number and size of their prey [1,2].…”

Section: Introductionmentioning

confidence: 99%

Effect of Environmental Variations on Macro-benthos Occurrence and Abundance of the Red Sea Coast of Egypt

El-Sokkary

Obuid-Allah²,

El-Wakeil³

et al. 2022

Assiut University Journal of Multidisciplinary Scientific Resea

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“…Furthermore, the knowledge about the role of temporal variability in driving macrobenthic patterns is still scarce [ 35 – 41 ]. While seasonal changes in tropical regions are comparatively less distinct than in temperate regions [ 42 ], temporal variability in benthic patterns exists [ 39 , 43 , 44 ].…”

Section: Introductionmentioning

confidence: 99%

Composition, uniqueness and connectivity across tropical coastal lagoon habitats in the Red Sea

et al. 2020

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Background Tropical habitats and their associated environmental characteristics play a critical role in shaping macroinvertebrate communities. Assessing patterns of diversity over space and time and investigating the factors that control and generate those patterns is critical for conservation efforts. However, these factors are still poorly understood in sub-tropical and tropical regions. The present study applied a combination of uni- and multivariate techniques to test whether patterns of biodiversity, composition, and structure of macrobenthic assemblages change across different lagoon habitats (two mangrove sites; two seagrass meadows with varying levels of vegetation cover; and an unvegetated subtidal area) and between seasons and years. Results In total, 4771 invertebrates were identified belonging to 272 operational taxonomic units (OTUs). We observed that macrobenthic lagoon assemblages are diverse, heterogeneous and that the most evident biological pattern was spatial rather than temporal. To investigate whether macrofaunal patterns within the lagoon habitats (mangrove, seagrass, unvegetated area) changed through the time, we analysed each habitat separately. The results showed high seasonal and inter-annual variability in the macrofaunal patterns. However, the seagrass beds that are characterized by variable vegetation cover, through time, showed comparatively higher stability (with the lowest values of inter-annual variability and a high number of resident taxa). These results support the theory that seagrass habitat complexity promotes diversity and density of macrobenthic assemblages. Despite the structural and functional importance of seagrass beds documented in this study, the results also highlighted the small-scale heterogeneity of tropical habitats that may serve as biodiversity repositories. Conclusions Comprehensive approaches at the “seascape” level are required for improved ecosystem management and to maintain connectivity patterns amongst habitats. This is particularly true along the Saudi Arabian coast of the Red Sea, which is currently experiencing rapid coastal development. Also, considering the high temporal variability (seasonal and inter-annual) of tropical shallow-water habitats, monitoring and management plans must include temporal scales.

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The effect of water quality on the distribution of macro-benthic fauna in Western Lagoon and Timsah Lake, Egypt.I

Cited by 22 publications

References 27 publications

The assessment of health risk from heavy metals with water indices for irrigation and the portability of Munzur Stream: A case study of the Ovacık area (Ramsar site), Türkiye

The assessment of health risk from heavy metals with water indices for irrigation and the portability of Munzur Stream: A case study of the Ovacık area (Ramsar site), Türkiye

Effect of Environmental Variations on Macro-benthos Occurrence and Abundance of the Red Sea Coast of Egypt

Composition, uniqueness and connectivity across tropical coastal lagoon habitats in the Red Sea

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