Using scleractinian corals as monitors of essential and potentially toxic elements pollution in the southern Red Sea, Yemen Republic

IF 2.1 3区地球科学 Q2 OCEANOGRAPHY

Continental Shelf Research Pub Date : 2025-02-01 DOI:10.1016/j.csr.2024.105390

Safa Y. Abdo , Inga Zinicovscaia , Nikita Yushin , Omari Chaligava

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引用次数: 0

Abstract

This study presents a long-term follow-up investigation into the pollution levels of two significant harbors, Al-Luhaya and Al-Saleef, in the southern Red Sea (Hodeidah/Yemen) using inductively coupled plasma optical emission spectroscopy (ICP-OES). In Al-Luhaya harbor, the mass fractions of elements followed the sequence: S > Al > Fe > Ba >Mn > Zn > V > Cu > Ni > Cr > Cd > Pb > Co, while in Al-Saleef, the sequence was S > Al > Fe > Ba >Mn > Zn > V > Ni > Cu > Cr > Pb > Co > Cd. Sulfur was the dominant element in corals, its mass fraction changing in the range of 1188–1567 mg kg⁻¹ in Al-Luhaya and 2066–3047 mg kg⁻¹ in Al-Saleef. According to the Wilcoxon test, only the content of Zn in Al-Saleef corals was significantly higher than in Al-Luhaya ones. Correlation and principal component analyses were employed to disclose the elements’ relationship and associate them with pollution sources. The primary sources of the elements accumulated in corals are port activity, sewage discharge, and terrigenous input. The pollution load index and contamination factor were utilized to evaluate the extent of environmental pollution. The contamination factor values between 1 and 3.5 point at slight pollution with Fe in Al-Luhaya, while in Al-Saleef it was noted suspected contamination with Zn and Ni, and moderate pollution with Fe. The mass fractions of the elements in the present study were comparable or lower than values reported for corals collected in different zones of the Red Sea.

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来源期刊

Continental Shelf Research 地学-海洋学

CiteScore

4.30

自引率

4.30%

发文量

136

审稿时长

6.1 months

期刊介绍： Continental Shelf Research publishes articles dealing with the biological, chemical, geological and physical oceanography of the shallow marine environment, from coastal and estuarine waters out to the shelf break. The continental shelf is a critical environment within the land-ocean continuum, and many processes, functions and problems in the continental shelf are driven by terrestrial inputs transported through the rivers and estuaries to the coastal and continental shelf areas. Manuscripts that deal with these topics must make a clear link to the continental shelf. Examples of research areas include: Physical sedimentology and geomorphology Geochemistry of the coastal ocean (inorganic and organic) Marine environment and anthropogenic effects Interaction of physical dynamics with natural and manmade shoreline features Benthic, phytoplankton and zooplankton ecology Coastal water and sediment quality, and ecosystem health Benthic-pelagic coupling (physical and biogeochemical) Interactions between physical dynamics (waves, currents, mixing, etc.) and biogeochemical cycles Estuarine, coastal and shelf sea modelling and process studies.