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• 基金项目：

• 蔡福龙
• 国家海洋局第三海洋研究所

• 陈英
• 国家海洋局第三海洋研究所

• 许丕安
• 国家海洋局第三海洋研究所

• 邱曼华
• 国家海洋局第三海洋研究所

• 赖招才
• 国家海洋局第三海洋研究所

• 林荣盛
• 国家海洋局第三海洋研究所

• 摘要：本实验把扁藻、三角褐指藻、文蛤、毛蚶、对虾、罗非鱼等海洋生物引入人工水池小生境后,研究¹³⁷Cs、¹³⁴Cs、⁶⁵Zn、⁶⁰Co、²⁹Fe、⁵⁴Mn等核素在这一体系中行为的变化.结果表明,引入扁藻.三角褐指藻后,首先改变了⁵⁴Mn的存在状态,使其不易富集在藻体上;引入实验动物一个月后,并没有减少原先浮游藻类、底质对核素的吸附,但水体中相当部分的⁵⁴)Mn、⁶⁰Co已转移至动物体中,池底粪粒沉淀物中的⁵⁴Mn、⁶⁵Zn、⁶⁰Co、⁵⁹Fe的含量也相当高,从而大大改变了核素在人工水池小生境中的转移规律.

• Abstract：The paper is second one in a program of transfer of radioactive nuclides from sea water to sediments and marine organisms. In the artificial microhabitat consisting of sea water, sediments, phytoplankton, clam, shrimp and fish behavior of ¹³⁷Cs, ¹³⁴Cs, ⁶⁵Zn, ⁶⁰Co, ⁵⁹Fe, ⁶⁴Mn were studied. It showed that ⁵⁴Mn was not concentrated by phytoplankton (Platymonas sp, and Phaeodactylum tricornutum Bohlin), while ⁵⁴Mn,⁵⁹Fe were transferred to fish (Tilapia mossambica Peter) by way of sediments. ⁶⁰Co, ⁶⁵Zn were transferred to clam (Arca subcrenata Lischke) and fish (Tilapia mossambica Peters) by way of phytoplankton and detrital matter. Behavior of ¹³⁷Cs and ¹³⁴Cs was very similar, but concentration factor by marine organism for them was not high. In the microhabitat, the nuclides in company with exchange of the matter and the energy were constantly recycled among the sea water, sediments and the marine organisms, and this is the transfer path in the form of a net. The significance of this paper expounded the idea of artificial microhabitat consisting of sea water, sediments, phytoplankton, clam, shrimp and fish.

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