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首页> 外文期刊>Turkish Journal of Fisheries & Aquatic Sciences >Identification and Abundance of Benthic Foraminifera in the Sediments from Fereidoonkenar to Babolsar of Southern Caspian Sea
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Identification and Abundance of Benthic Foraminifera in the Sediments from Fereidoonkenar to Babolsar of Southern Caspian Sea

机译：费里东肯纳尔-南里海Babolsar沉积物中底栖有孔虫的鉴定和丰度

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摘要

In this study in order to introducing Foraminifera species and determining their relationship with the environmental factors, sediment samples were gathered in spring 2011 from 12 stations (ranging in depths 5, 10, 15 and 20 meters) in the Southern Caspian Sea from Fereidoonkenar to Babolsar. Environmental factors of water near the bottom including temperature, salinity, dissolved Oxygen, pH were measured during sampling and grain size and total organic matter and calcium carbonate concentration were measured in laboratory. Structure of the sediment samples mostly consisted of fine sand; very fine sand, silt and clay and 4 species of benthic foraminifera species belong to 4 genera of 4 families were identified. Ammonia beccarii caspica, Elphidium littorale caspicus, Milliammina fusca and Ammotium sp. The cosmopolitan foraminifer, Ammonia beccarii caspica was common in all sampling stations. Density of benthic forams had a significantly correlation with grain size, that their density were increased with adding silt and clay rate. The structure of the sediments was the most important abiotic factors controlling the distribution pattern of benthic forams in the sampling stations. Structural abnormalities in the testes of the benthic foraminifera indicated the comparatively polluted benthic environment from Fereidoonkenar to Babolsar of Southern Caspian Sea.
机译：在这项研究中，为了介绍有孔虫物种并确定它们与环境因素的关系，2011年春季从里海南部的费雷东孔纳尔至巴博尔萨尔的12个站点（深度分别为5、10、15和20米）收集了沉积物样本。 。在采样过程中测量了底部附近水的环境因素，包括温度，盐度，溶解氧，pH值，并在实验室中测量了颗粒大小以及总有机物和碳酸钙浓度。沉积物样品的结构主要由细砂组成;确定了属于4科4属的极细沙，粉砂和粘土以及4种底栖有孔虫。氨水贝卡里​​卡卡皮，Elphidium littorale caspicus，Millimmina fusca和Ammotium sp。大都会有孔虫，Beccarii caspica氨在所有采样站中都很常见。底栖孔洞的密度与晶粒度显着相关，它们的密度随淤泥和粘土含量的增加而增加。沉积物的结构是控制采样站底栖孔分布模式的最重要的非生物因素。底栖有孔虫睾丸的结构异常表明，从费里东肯纳尔到里海南部的巴博萨尔，底栖环境受到了相对污染。

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