Document Type : Original Manuscript
Authors
1 Department of Marine Biology, Faculty of Marine Science and Technology, Khorramshahr University of Marine Sciences and Technology, Khorramshahr, Iran
2 Department of Marine Biology, Faculty of Marine Science and Technology, Khorramshahr University of Marine Sciences and Technology, Khorramshahr, Iran.
3 Department of Marine Biology, Khorramshahr University of Marine Sciences and Technology
4 Department of Marine Chemistry, Faculty of Marine Science and Technology, Khorramshahr University of Marine Sciences and Technology, Khorramshahr, Iran.
5 Department of Biological Sciences and Technology, Persian Gulf University, Bushehr, Iran.
Abstract
In this study, the amount of heavy metals (nickel, cadmium, lead, copper, mercury) in brown algae Sargassum sp., Padina sp. and Cystoseira sp., sediments and the amount of mercury in water were also measured. ampling was done during winter 2016 and summer 2017 at four stations from the shores of Bushehr.Analysis of heavy metals in sediments and algae after chemical digestion and preparation was investigated by Savanta model atomic absorption spectrophotometer. The order obtained from the concentration of heavy metals in Padina sp. cadmium > lead > nickel > copper > mercury, for Sargassum sp. as lead > copper > nickel > cadmium > mercury and for Cystoseira sp. It is in the form of copper > lead > nickel > cadmium > mercury, among which Padina sp algae had the highest accumulation of heavy metals. The order of concentration of metals in sediments was nickel > lead > copper > cadmium > mercury. All metals, except for lead metal, have a higher average in the summer season, and the average mercury metal in water was measured at 0.23 micrograms per gram of dry weight. Correlation results showed that the concentration of heavy metals (nickel, cadmium, lead, copper, and mercury) in macroalgae Padina sp, Sargassum sp, sp. Cystoseira and their adjacent sediments in the shores of Bushehr, two algae Sargassum sp. and sp. Cystoseira have a greater ability to accumulate heavy metals.Cystoseira have a greater ability to accumulate heavy metals. According to the obtained results, the concentration of heavy metal mercury in the waters of the shores of Bushehr city with its amount in the studied algae, it seems that Sargassum sp. It is a suitable material for biological monitoring of this metal in the study area.
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