不同固着基及2种金属离子(K^＋、Cu^2＋)对香港巨牡蛎眼点幼虫固着变态的影响  

The Influence of Eyespots Larval Settlement and Metamorphosis of Crassostrea Hongkongensis Using Different Kinds of Attached Substrate and Two Kinds of Metal Iron(K^+ and Cu^(2+))

作　　者：陈德金[1,2] 肖述[2] 王文杰[1] 潘奕达 喻子牛[2] 潘英[1] 

机构地区：[1]广西大学动物科学技术学院,广西南宁530004 [2]中国科学院南海海洋研究所,广东广州510275

出　　处：《海洋湖沼通报》2014年第4期67-72,共6页Transactions of Oceanology and Limnology

基　　金：国家自然科学基金项目(31272658、31060353);广东省科技计划项目(2012A020200004)资助

摘　　要：用不同种类固着基及2种金属离子(K+、Cu2+)对香港巨牡蛎Crassostrea hongkongensis眼点幼虫固着变态的效果进行了研究。结果表明:黑色聚乙烯膜更有利于香港巨牡蛎眼点幼虫的固着,固着率达到49.85%,其次为黑色塑料板,固着率为19.33%,红色塑料板最低,固着率为5.14%;添加K+对牡蛎眼点幼虫的固着变态有诱导作用,当添加K+浓度为13.42mmol/L作用24h时,与对照组相比幼虫的固着提高率、变态提高率分别为42.39%、25.20%;而添加Cu2+对香港巨牡蛎眼点幼虫的固着变态没有诱导作用,随着Cu2+处理时间及处理浓度的增加,香港巨牡蛎眼点幼虫的死亡率明显提高,推测浓度过高的Cu2+对香港巨牡蛎眼点幼虫有毒性作用。In this paper, Crassostrea hongkongensis eyespots larva settlement and metamorphosis effect in different attached substrate and metal ion （K^＋ , Cu^2＋） were studied. The results showed that the settlement rate highest was 49. 85% in the black polyethylene film, followed by black plastic board （19.33%）, and the lowest was red plastic board （5. 14%/00）; Adding of K^＋ had induced the settlement and metamorphosis of eyespots larva, when adding 13.42 mmol/L K^＋ disposing 24 h, larval settlement increasing rate and metamorphosis increasing rate reached 42.39% and 25.20% respectively compared with the control; While adding of Cu^2＋ had no effect, along with the increase of Cu2＋ processing time and concentration, the mortality rate of C. hongkongensis eyespots larva obviously enhanced which suggested that excessive levels of Cu^2＋ was toxic to C. hongkongensis eyespots larvae.

关 键 词：香港巨牡蛎 固着基 固着变态 K^+ CU^2+ 

分 类 号：S96[农业科学—水产养殖]