气温对栉孔扇贝浮游幼虫浮游状态的影响  

Survey on Effect of Air Temperature on the Floating State of Chlamys farreri larvae

作　　者：李庆彪[1] 李梦笔[1] 

机构地区：[1]山东省海水养殖研究所

出　　处：《齐鲁渔业》1997年第1期12-14,共3页Shandong Fisheries

摘　　要：气温对栉孔扇贝浮游幼虫浮游状态的影响在于水、气温差。气温高于水温时，幼虫集群；气温低于水温２～３℃时，幼虫不集群，但尚能上浮；气温比水温更低时，幼虫不上浮。这可能与幼虫的趋温性有关。与病态的浮游幼虫下沉相比，低气温造成的浮游幼虫下沉可逆性要大得多。低气温造成的浮游幼虫下沉。The effect of the air temperature on the floating state of Chlamys farreri larvae lies in the difference of the water and air temperature.When the air temperature is higher than the water temperature ,the floating larvae of chlamys farreri gather together;when the air temperature is lower than the water temperature at 2～3℃,the larvae scatter away but can float upward;when the air temperature is much lower than the water temperature,the larvae do not float upward.It is possible to have something to do with thermotaxis of the larvae.If compared with the submergence of the larvae in morbid state,the reversibility of the larvae submersible caused by the low air temperature is much greater.To solve the problem of larvae submergence caused by the low air temperature,the only one method is to raise the air temperature.

关 键 词：栉孔扇贝 升温育苗 浮游幼虫 浮游状态 

分 类 号：S968.323[农业科学—水产养殖]