论文部分内容阅读
在水温 2 0 .5± 0 .5℃和海水盐度 2 9.3的条件下 ,盘鲍幼体在受精后约 72h获得附着能力 .GABA(γ 氨基丁酸 ) 2～ 1 0 0 0 μmol/dm3 GABA可有效诱导幼体的附着 ,其中 1 0 0 0 μmol/dm3 GABA在 3.5h内诱导 1 0 0 %的幼体附着 .添加K+可以诱导盘鲍幼体的附着行为反应 ,但不能促使幼体的实质性附着 .同种成体的足粘液对诱导幼体的附着是有效的 ,附着性硅藻特别是卵形藻也有很高的诱导活性 .当适宜的附着基底缺乏时 ,幼体有变态延迟现象
Under the condition of 20 ± 5 ± 0.5 ℃ and seawater salinity of 2 9.3, larvae of Abalone Haliotis discus hannai had the ability of attachment at about 72h after fertilization.GABA (γ-aminobutyric acid) 2 ~ 100 μmol / dm3 GABA Which could effectively induce the attachment of larvae, of which 100 000 μmol / dm3 GABA induced 100% larvae attachment within 3.5 hours.Adding K + could induce the attachment behavior of larval abalone but did not promote the substantive attachment of larvae. The same adult foot mucus is effective in inducing larval attachment, and adherent diatoms, particularly oomycetes, also have high inducing activity. When suitable attachment bases are lacking, the larvae have an abnormal delaying phenomenon