| 95Zr在海水、底质及海洋生物间的迁移、富集和分布 |
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| 引用本文： | 孙平跃,史建君,李明云.95Zr在海水、底质及海洋生物间的迁移、富集和分布[J].海洋学报,2004,26(4):118-124. |
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| 作者姓名： | 孙平跃 史建君 李明云 |
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| 作者单位： | 1.宁波大学, 海洋与水产系, 浙江, 宁波, 315211 |
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| 基金项目： | 国家自然科学基金资助项目(39970147). |
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| 摘 要： | 在模拟海洋环境中,海水中95Zr的比活度在试验前期快速下降,在最初4h内下降了90%以上,此后呈缓慢递减趋势.底质中95Zr的比活度在试验前期逐渐上升,至48h达到最大值,此后随时间逐渐降低.半褶织纹螺螺壳富集95Zr的能力显著强于螺肉,螺壳和螺肉的富集系数分别为10.32和4.68.大弹涂鱼各组织器官中,根据富集量,对95Zr的富集能力最强的是内脏,其次是鳃和鳍,最弱的是肌肉,次弱的是脊椎.大弹涂鱼除鳃外,其余各组织器官的富集系数均小于1.半褶织纹螺对95Zr的富集能力比大弹涂鱼更强.
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| 关 键 词： | 95Zr 海洋环境 大弹涂鱼 半褶织纹螺 环境行为 |
| 文章编号： | 0253-4193(2004)04-0118-07 |
| 收稿时间： | 8/6/2001 12:00:00 AM |
| 修稿时间： | 2001/9/25 0:00:00 |
Transference, concentration and distribution of 95Zr among seawater, sediment and marine organisms |
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| SUN Ping-yue,SHI Jian-jun and LI Ming-yun.Transference, concentration and distribution of 95Zr among seawater, sediment and marine organisms[J].Acta Oceanologica Sinica (in Chinese),2004,26(4):118-124. |
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| Authors: | SUN Ping-yue SHI Jian-jun and LI Ming-yun |
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| Institution: | 1.Department of Oceanography and Fisheries, Ningbo Univesity, Ningbo 315211, China2.Institute of Nuclear Agricultural Science, Zhejiang University, Hangzhou 310029, China |
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| Abstract: | In simulated marine environment, the specific activity of ~(95)Zr in water decreased rapidly in the former period of the experiment. In the first 4 h of the experiment, the concentration of ~(95)Zr in water decreased more than 90% of the original value, and then slowly declined. The specific activity of ~(95)Zr in sediment appeared in increasing tendency in the former period of the experiment, reached concentrating peak at 2 d and decreased afterwards. Shell of Narssarius semiplicatus has much stronger capability on concentrating ~(95)Zr than muscle. The concentration factors of shell and muscle are 10.32 and 4.68, respectively. According to the concentrated quantity, viscera has the strongest capability on concentrating ~(95)Zr among the study tissues/organs in Boleophthalmus pectinirostris, and the followings are gill and fin. Muscle of the fish is the organ that has the weakest capability on concentrating (~(95)Zr), and the following is vertebra. Except gill, the concentration factors of the other organs in Boleophthalmus pectinirostris are all smaller than 1. Narssarius semiplicatus has much stronger capability on concentrating ~(95)Zr than Boleophthalmus pectinirostris. |
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| Keywords: | ~(95)Zr marine environment Boleophthalmus pectinirostris Narssarius semiplicatus environmental behavior |
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