论文部分内容阅读
本文描述了厚壳贻贝(Mytilus coruscus Gould)在四种重金属离子(Cu~(2+)、Hg~(2+)、Cd~(2+)、Pb~(2+))不同浓度中早期胚胎发育的状况。每种重金属离子对厚壳贻贝卵子的受精及早期发育产生不同程度的影响,重金属离子的浓度不同,所产生的影响也不同。Pb~(2+)、Cd~(2+)的浓度在2ppm以下时,对贻贝的早期孵化影响不大,而Cu~(2+)和Hg~(2+)则对其有严重影响,当它们浓度仅为20ppb时,大多数受精卵不能孵化,即使能孵化也将发育成畸形而不能继续发育。
This article describes the early stages of Mytilus coruscus Gould in different concentrations of four heavy metal ions (Cu 2+, Hg 2+, Cd 2+, Pb 2+) The condition of embryo development. Each heavy metal ion produced different degrees of influence on the fertilization and early development of the eggs of the thick-shelled mussel. Different concentrations of heavy metal ions produced different effects. Pb 2+ and Cd 2+ had little effect on the early hatching of mussels, while Cu 2+ and Hg 2+ had a serious impact on them When they are at a concentration of only 20ppb, most of the fertilized eggs can not hatch, even hatching will develop into deformities and can not continue to develop.