三丁基锡对中国近海主要优势浮游植物的毒性作用研究  

Toxic Effects of Chloride Tributyltin on the Predominant Phytoplankton Species of China Coastal Sea

作　　者：谢永红[1] 苏荣国[1] 张丽笑[1] 王长友[2] 王修林[1] 

机构地区：[1]中国海洋大学海洋化学理论与工程技术教育部重点实验室,青岛266100 [2]南京信息工程大学大气科学学院,南京210044

出　　处：《环境科学》2011年第10期2909-2915,共7页Environmental Science

基　　金：国家高技术研究发展计划(863)项目(2009AA063005);山东省自然科学基金项目(ZR2009EM001)

摘　　要：研究三丁基锡(TBT)对我国近海优势浮游植物丹麦细柱藻(Leptocylindru danicus)、玛氏骨条藻(Skeletonema marinoi)、日本星杆藻(Asterionella japonica)、派格棍形藻(Bacilaria paxillifera)、柔弱角毛藻(Chaetoceros debilis)、聚生角毛藻(Chaetocerossocialis)、海链藻(Thalassiosira),强壮前沟藻(Amphidinium carterae)、米氏凯伦藻(Karenia mikimotoi)、微型原甲藻(Prorocentrumminimum)、裸甲藻(Gymnodinium sp.)、锥状斯比藻(Scrippsiella trochoidea)、简裸甲藻(Gymnodinium simplex)、三角棘原甲藻(Prorocentrum triestinum)和赤潮异湾藻(Heterosigma akashiwo)的生长、峰值粒径和光合活性(Fv/Fm)的影响.结果表明,不同藻种对TBT具有不同的耐受性,丹麦细柱藻的耐受性要远强于其他藻种;TBT对藻的96 h生长半抑制浓度EC50(96 h-EC50)分别为136.42、3.55、3.15、2.95、1.90、1.08、0.70、21.60、7.71、4.77、3.81、2.04、0.53、0.51、1.76μg/L;非检测毒性浓度NDEC分别为112.62、1.19、1.17、3.70、0.95、1.07、0.80、6.28、1.84、0.99、3.73、1.63、0.23、0.16、1.76μg/L.TBT的浓度达到一定值时,对海洋浮游植物的生长、峰值粒径、光合活性均有显著的抑制作用.在此基础上推测TBT毒性与港口区域优势浮游藻组成可能具有一定的关联性.Toxic effects of tributyltin（TBT） on the growth,peak diameter and photosynthetic activity（Fv/Fm） of fifteen predominant phytoplankton species in China coastal sea of Leptocylindru danicus,Skeletonema marinoi,Asterionella japonica,Bacilaria paxillifera,Chaetoceros debilis,Chaetoceros socialis,Thalassiosira,Amphidinium carterae,Karenia mikimotoi,Prorocentrum minimum,Gymnodinium sp.,Scrippsiella trochoidea,Gymnodinium simplex,Prorocentrum triestinum and Heterosigma akashiwo were systematically studied.96 h-EC50 of TBT were 136.42,3.55,3.15,2.95,1.90,1.08,0.70,21.60,7.71,4.77,3.81,2.04,0.53,0.51,1.76 μg/L,respectively.The no detectation effect concentration were 112.62,1.19,1.17,3.70,0.95,1.07,0.80,6.28,1.84,0.99,3.73,1.63,0.23,0.16,1.76 μg/L,respectively.The results indicated that the toxic effects of TBT were very different among different phytoplankton species and the resistance of Leptocylindru danicus was stronger than those of other microalgae.The TBT not only inhibited the growth of phytoplankton,but also changed the peak diameter and decreased the photosynthetic activity（Fv/Fm）.Besides that,we infer that there may have a relationship between the toxicity of TBT and the composition of predominant phytoplankton population in harbour.

关 键 词：浮游植物 三丁基锡 毒性 LOGISTIC模型 峰值粒径 光合活性 

分 类 号：X171.5[环境科学与工程—环境科学]