中华绒螯蟹对石油烃的富集代谢规律及阈值研究  

Accumulation and elimination characteristic and the threshold value of Eriocheir sinensis to petroleum hydrocarbons

作　　者：关丽 郭欣硕 徐小雅 黄萍萍 蔺翠翠 GUAN Li;GUO Xinshuo;XU Xiaoya;HUANG Pingping;LIN Cuicui(Liaoning Province Engineering Center of Modern Agricultural Production Base,Shenyang 110003,China)

机构地区：[1]辽宁省现代农业生产基地建设工程中心,辽宁沈阳110003

出　　处：《渔业研究》2022年第5期500-507,共8页Journal of Fisheries Research

基　　金：辽宁省海洋与渔业厅科研项目(201201)。

摘　　要：中华绒螯蟹(Eriocheir sinensis)养殖环境面临石油烃污染威胁,为探讨石油烃在蟹体内的富集代谢规律,以50 g左右中华绒螯蟹为研究对象,采用半静态动力学富集实验方法,进行了石油烃富集代谢实验及阈值研究。结果表明:经过8 d左右,石油烃在养殖水体和中华绒螯蟹之间达到了稳态平衡;中、低浓度组中华绒螯蟹对石油烃的富集在前期较慢,中期较快,最后达到稳态平衡;高浓度组前期富集较快,之后逐渐达到稳态平衡。代谢实验呈现出前期较快、中后期逐渐放缓并趋于平衡的规律,但代谢两周后中华绒螯蟹体内的石油烃含量未恢复至实验初期水平。中华绒螯蟹中石油烃的异味阈值为12.09~15.07 mg/kg,当养殖水体中石油烃浓度为国家限量标准0.05 mg/L时,富集达到平衡后中华绒螯蟹体内石油烃含量低于国家限量标准15 mg/kg,也未发现有石油烃异味,因此,0.05 mg/L作为养殖水体中石油烃的安全限值是比较合理的。The culture environment of Eriocheir sinensis is threatened by petroleum hydrocarbon pollution, in order to investigate the accumulation and metabolism of petroleum hydrocarbons in E.sinensis,the threshold for producing odor of petroleum hydrocarbon was obtained.This study taking 50 g E.sinensis around as the study object, the bioconcentration metabolism rules and the threshold of peroleum hydrocarbons by E.sinensis was examined by using the semi static dynamic experiment.The results showed that the petroleum hydrocarbon pollutants reached balance between water environment and E.sinensis after 8 days of experiment, the low and medium concentration group of E.sinensis for petroleum hydrocarbon enrichment speed in early stage was slower than the midterm stage, then reached equilibrium quickly, the high concentration group reached equilibrium gradually after concentrated rapidly in early stage.Metabolism experiment showed the same rules that fasting at the early stage, gradually slowing down and reaching balance, petroleum hydrocarbons content didn’t return to the beginning of this enrichment experiment after two weeks metabolism experiment, this was related to the refractory.The odor threshold of petroleum hydrocarbons in E.sinensis was 12.09-15.07 mg/kg, when the concentration of petroleum hydrocarbons in water was 0.05 mg/L for the limit of the national, the petroleum hydrocarbons content in E.sinensis was less than 15 mg/kg for the limit of the national, also had no hydrocarbon odor, therefore, according to the experimental results in this paper, the safety level of petroleum hydrocarbons for aquaculture water was considered as 0.05 mg/L.

关 键 词：中华绒螯蟹 石油烃 富集 代谢 阈值 

分 类 号：S91[农业科学—水产科学]