摘要
本实验以菲律宾蛤仔为受试生物,采用半静水接触染毒法研究了菲律宾蛤仔对胜利原油的富集和释放特征。结果表明:(1)菲律宾蛤仔对石油烃具有明显的富集能力。经过15 d的富集,生物富集系数随水体中石油浓度的增大而减小。0.1,0.2,0.4,0.8,1.6,3.2 mg.L-1实验组中富集系数分别为231.20,137.15,113.30,70.46,47.45,30.61。吸收速率随水体中石油浓度的增加而增大,吸收速率分别为1.54,1.83,3.02,3.76,5.06,6.53 mg.kg-1.d-1。(2)经过10 d的释放试验,释放速率随水体石油浓度增加而增大,释放速率分别为2.16,2.39,2.57,2.83,3.24,4.63 mg.kg-1.d-1。其排出率分别为6.69%,12.78%,43.31%,49.80%,57.37%,52.78%。菲律宾蛤仔体内石油浓度逐渐下降,但随着水体中石油浓度的升高,经过一段时间的释放,生物体内的石油残余量逐渐升高。
The Ruditapes philippinarum was exposed in Shengli crude oil to study the characteristic of its accumulation and elimination. The results showed that （ 1 ） Ruditapes philippinarum has a high ability of accumulating oil. After 15 days accumulation, bio-concen- tration factors （BCF） is decreased with the increasing oil concentration in the seawater. In the concentration of O. 1,0.2,0.4,0.8, 1.6,3.2 mg-1 L-1 , BCF are 231.20,137.15,113.30,70.46,47.45,30.61, respectively. The rate of accumulation is increased with the increasing oil concentration in the seawater and the rates are 1.54,1.83,3.02,3.76,5.06,6.53 mg-1 kg-1 dq , respectively. （2） After l0 days＇ elimination, the rates of elimination are increased with the increasing oil concentration in the seawater and the rates are respectively 2.16,2.39,2.57,2.83,3.24,4.63 mg-1 kg-1 d-1. The release rates are 6.69% , 12.78% ,43.31% ,49.80% , 57.37% ,52.78 %, respectively. The oil content in Ruditapes philippinarum gradually is decreased, but with the increase of crude oil in the seawater, after a period of elimination, the oil remnant assumes the trend of escalation with the crude oil concentration increased.
出处
《海洋环境科学》
CAS
CSCD
北大核心
2013年第1期63-66,共4页
Marine Environmental Science
基金
山东省自然科学青年基金(ZR2010CQ023)
中国水产科学研究院基本科研业务费(2012A0202)
国家海洋局海洋溢油鉴别与损害评估技术重点实验室开放基金(201111)
国家海洋局项目(DOMEP(MEA)-01-01)
国家海洋局项目(DOMEP(MEA)-02)
关键词
菲律宾蛤仔
石油烃
富集
释放
Ruditapes philippinarum
crude oil
accumulation
elimination
