The effects of Prorocentrum donghaiense, Karenia mikimotoi, Alexandrium catenella, the causative species of Harmful Algal Blooms in the East China Sea, on the survival and growth of Neomysis awatschensis and Artemia s...The effects of Prorocentrum donghaiense, Karenia mikimotoi, Alexandrium catenella, the causative species of Harmful Algal Blooms in the East China Sea, on the survival and growth of Neomysis awatschensis and Artemia salina were investigated. And the toxicity of eleven strains of Alexandrium——A. lusitanicum(AL-1)、A. minutum(AM-1)、A. spp.(A-K)、A. tamarense(ATHK,ATCI02, ATCI03, AT5-1, AT5-3,AT-6)、A. affine(AS-1,AC-1) to the two above organisms were compared.The results showed that P. donghaiense and K. mikimotoi had no adverse effect on the survival and growth of N. awatschensis and A. salina at 96h.However, the survival rate of N. awatschensis and A. salina declined linearly with the increasing density of A. catenella, and the 96h LC50 for N. awatschensis and A. salina was 4500 and 460cells/mL, respectively.Five strains of Alexandrium——A. spp, A. lusitanicum(AL-1), A. tamarense(AT5-3, AT-6)and A.affine(AS-1)at the density of 4000cells/mL and 96h had no adverse impacts on N.awatschensis.But other six strains of Alexandrium——A.tamarense(AT5-1, ATHK, ATCI02, ATCI03), A.affine(AC-1)and A.minutum(AM-1)decreased the survival rate of N.awatschensis significantly. Two strains of Alexandrium——A. lusitanicum(AL-1)and A.tamarense(AT-6), at the density of 500cells/mL had no adverse effects on A.salina in 96h; while the other Alexandrium strains all had adverse effects on the survival of A.salina.A.salina could increase its length with the increasing density of P.donghaiense, K.mikimotoi and A.lusitanicum. The results indicate that P.donghaiense and K.mikimotoi have no significant effect on the survival of crustacean zooplankton in a short period.But several Alexandrium species/strains could influence the survival of crustacean zooplankton likely by non-PSP substances.A.salina is shown to be more sensitive than N.awatschensis as test organisms to harmful species.展开更多
当我们提到铅笔的时候,脑海里最快浮现出的是黄色、2B、六边形木头、石墨芯组合而成的图像。但是以色列一个工业设计专业的班级正在设计非常异类的铅笔。这些大三学生来自霍隆理工学院(Holon Institute of Technology),在老师卢卡·...当我们提到铅笔的时候,脑海里最快浮现出的是黄色、2B、六边形木头、石墨芯组合而成的图像。但是以色列一个工业设计专业的班级正在设计非常异类的铅笔。这些大三学生来自霍隆理工学院(Holon Institute of Technology),在老师卢卡·奥尔(Luka Or)和凯伦·托夫勒(Keren Tomer)的带领下,他们把最常见的书写工具变成了刷子、图章甚至是专门用来写信的特制工具。展开更多
万宝龙首度进军高级珠宝领域,于法国时间2月2日,在欧洲第一高峰白朗峰山脚的古城沙慕尼(Chamonix),举行了盛大的"明星之夜"(The Night of Stars)晚会。万宝龙星光系列(Red Carpet Moments)及珠宝钻饰系列(Diamond Jewellery C...万宝龙首度进军高级珠宝领域,于法国时间2月2日,在欧洲第一高峰白朗峰山脚的古城沙慕尼(Chamonix),举行了盛大的"明星之夜"(The Night of Stars)晚会。万宝龙星光系列(Red Carpet Moments)及珠宝钻饰系列(Diamond Jewellery Collection)隆重登场,全部系列以专利注册的万宝龙星型美钻为设计主题,展现品牌的精湛珠宝工艺。展开更多
文摘The effects of Prorocentrum donghaiense, Karenia mikimotoi, Alexandrium catenella, the causative species of Harmful Algal Blooms in the East China Sea, on the survival and growth of Neomysis awatschensis and Artemia salina were investigated. And the toxicity of eleven strains of Alexandrium——A. lusitanicum(AL-1)、A. minutum(AM-1)、A. spp.(A-K)、A. tamarense(ATHK,ATCI02, ATCI03, AT5-1, AT5-3,AT-6)、A. affine(AS-1,AC-1) to the two above organisms were compared.The results showed that P. donghaiense and K. mikimotoi had no adverse effect on the survival and growth of N. awatschensis and A. salina at 96h.However, the survival rate of N. awatschensis and A. salina declined linearly with the increasing density of A. catenella, and the 96h LC50 for N. awatschensis and A. salina was 4500 and 460cells/mL, respectively.Five strains of Alexandrium——A. spp, A. lusitanicum(AL-1), A. tamarense(AT5-3, AT-6)and A.affine(AS-1)at the density of 4000cells/mL and 96h had no adverse impacts on N.awatschensis.But other six strains of Alexandrium——A.tamarense(AT5-1, ATHK, ATCI02, ATCI03), A.affine(AC-1)and A.minutum(AM-1)decreased the survival rate of N.awatschensis significantly. Two strains of Alexandrium——A. lusitanicum(AL-1)and A.tamarense(AT-6), at the density of 500cells/mL had no adverse effects on A.salina in 96h; while the other Alexandrium strains all had adverse effects on the survival of A.salina.A.salina could increase its length with the increasing density of P.donghaiense, K.mikimotoi and A.lusitanicum. The results indicate that P.donghaiense and K.mikimotoi have no significant effect on the survival of crustacean zooplankton in a short period.But several Alexandrium species/strains could influence the survival of crustacean zooplankton likely by non-PSP substances.A.salina is shown to be more sensitive than N.awatschensis as test organisms to harmful species.
文摘当我们提到铅笔的时候,脑海里最快浮现出的是黄色、2B、六边形木头、石墨芯组合而成的图像。但是以色列一个工业设计专业的班级正在设计非常异类的铅笔。这些大三学生来自霍隆理工学院(Holon Institute of Technology),在老师卢卡·奥尔(Luka Or)和凯伦·托夫勒(Keren Tomer)的带领下,他们把最常见的书写工具变成了刷子、图章甚至是专门用来写信的特制工具。
文摘万宝龙首度进军高级珠宝领域,于法国时间2月2日,在欧洲第一高峰白朗峰山脚的古城沙慕尼(Chamonix),举行了盛大的"明星之夜"(The Night of Stars)晚会。万宝龙星光系列(Red Carpet Moments)及珠宝钻饰系列(Diamond Jewellery Collection)隆重登场,全部系列以专利注册的万宝龙星型美钻为设计主题,展现品牌的精湛珠宝工艺。
