Metal and organic carbon distribution in water column of a shallow enclosed Bay at the Aegean Sea Archipelago: Kalloni Bay, island of Lesvos, Greece
Metal and organic carbon distribution in water column of a shallow enclosed Bay at the Aegean Sea Archipelago: Kalloni Bay, island of Lesvos, Greece
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DOI：
10.1016/j.ecss.2005.02.015
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发表时间：
2005-08-01
影响因子：
2.8
通讯作者：
Angelidis, MO
中科院分区：
文献类型：
--
作者：
Gavriil, AM;Angelidis, MO
在希腊莱斯沃斯岛Kalloni湾半封闭浅海系统的四个不同地点，对溶解相和颗粒相的金属和有机碳浓度进行了季节性（湿期和干期）测定。海湾是一个典型的地中海岛屿系统，它结合了断断续续的河流排放、漫长的干旱期和相对较轻的人为活动在海岸带，研究旨在调查在这种条件下重金属的分配机制。金属浓度的季节和空间变化表明，河流运输是铜、铁、镍和颗粒Al和Li进入海湾的主要途径。冬季的湿沉降可能决定了铅和锌的分布。锰在沉积物中的分布似乎受到成岩过程的调节，导致锰在上覆水柱中释放。锂以悬浮颗粒物（SPM）的极细组分运输，并均匀分布在该区域。溶解相是Cd、Cu、Ni、Pb和有机碳的主要金属载体，Fe和Mn主要以颗粒相运输。由于海湾东北部存在含镍超基性矿物，因此仅观察到镍在金属分配上的重要空间变化。与人类有关的金属（Cd、Cu和Zn）的浓度很低，表明该地区的人为影响很小。溶解相有机碳（DOC）和颗粒相有机碳（POC）的浓度受初级生产和河流运输的调节，与封闭富营养化系统或河口相似。(c) 2005 Elsevier Ltd版权所有。
Metals and organic carbon concentrations in dissolved and particulate phases were determined seasonally (wet and dry periods) in four different sites of the semi-enclosed shallow marine system of Kalloni Bay in the island of Lesvos, Greece. The Bay is a typical system of many Mediterranean islands, which combine intermittent stream discharges, lengthy dry periods and relatively light anthropogenic activities on the coastal zone and the study aimed at the investigation of heavy metal partitioning mechanisms under such conditions. Seasonal and spatial variations in metal concentrations showed that fluvial transport is the major pathway for Cu, Fe, Ni and particulate Al and Li to the Bay. Wet deposition during winter probably determines the distributions of Pb and Zn. Manganese distribution appears to be regulated by diagenetic processes in the sediment, leading to Mn release in the overlying water column. Lithium is transported in the very fine fraction of suspended particulate matter (SPM) and is uniformly distributed in the area. Dissolved phase is the major metal carrier for Cd, Cu, Ni, Pb and organic carbon, while Fe and Mn are mainly transported in the particulate phase. Important spatial variations in metal partitioning were observed only for Ni because of the presence of nickeliferous ultrabasic minerals at the Northeastern part of the Bay. The concentrations of the human related metals (Cd, Cu and Zn) were low indicating very small anthropogenic influence in the area. The concentrations of organic carbon in dissolved (DOC) and particulate (POC) phases were regulated by primary production as well as fluvial transport and were similar to enclosed eutrophic systems or estuaries. (c) 2005 Elsevier Ltd. All rights reserved.