Spatial trends of Total Petroleum Hydrocarbons, related heavy metals and sediment characteristics in South Caspian Sea: Effect of depth and temporal dispersions

IF 0.8 4区农林科学 Q3 FISHERIES

Iranian Journal of Fisheries Sciences Pub Date : 2020-11-01 DOI:10.22092/IJFS.2020.122964

Maryam Jamali, R. M. Nadushan, A. Javid, A. Moradi, M. Givianrad

引用次数: 2

Abstract

In this study, Amirabad Special Economic was used as the study area, the distribution and tracing possible sources TPH, nickel, lead, vanadium, TP and TN were analysed in coastal sediments of 5 transects. According to our results the inner part of the 2 ports, are going to be slightly contaminated with TPH and heavy metals; meaning the contents of all the sites were lower than the background values. Based on physico-chemical parameters of water and according to dbRDA, the separation of offshore and river area was observed. Based on TOM, TPH and sediment nutrients, PCoA separated river and Sadra port transects. Finally, it seems high inter-annual water MVDISP values, reflecting highly temporal dynamic condition, influence the transportation of sediments along a depth gradient proved by nMDS, and the consecutive resuspension of sediments to open water is strong enough to keep the contaminants from rising to very high levels.

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南里海总石油烃、相关重金属和沉积物特征的空间趋势:深度和时间分散的影响

本研究以Amirabad Special Economic为研究区，分析了5个样带沿海沉积物中TPH、镍、铅、钒、TP和TN的分布及其可能来源。根据我们的结果，2个端口的内部，将会有轻微的TPH和重金属污染;这意味着所有网站的内容都低于背景值。以水体理化参数为依据，根据dbRDA进行了近海区与内河区分离的观测。基于TOM、TPH和沉积物养分，PCoA划分了河流和Sadra港样带。最后，年际间较高的水体MVDISP值，反映了高度的时间动态条件，影响了nMDS证明的沉积物沿深度梯度的输送，并且沉积物连续再悬浮到开阔水域的强度足以阻止污染物上升到很高的水平。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Iranian Journal of Fisheries Sciences FISHERIES-

CiteScore

2.30

自引率

11.10%

发文量

审稿时长

3 months

期刊介绍： 1- Living various species (contains animals and vegetal species) in various aquatic ecosystems. 2- Health and diseases of aquatic species. 3- Determining the stocks and specific time and location for catching and reliable exploitation for sustainable development. 4- Methods of propagation and culture of high value aquatic resources. 5- Aquatic stock assessment and the methods of restocking the high value species and suggestion for rate, areas and the time for releasing fish and other aquatic organisms fries. 6- Pollutant agents and their effects to the environments of aquatic species. 7- Feed and feeding in aquatic organisms. 8- Fish processing and producing new products. 9- The economic and social aspects of fisheries.