%0 Journal Article
%T Hazards of Hydra robusta to Coilia mystus Fry<br>强壮水螅对凤尾鱼苗的危害
%A LOU Bai-dan
%A FAN Xue-ming
%A SUN Guo-na
%A <br>楼柏丹
%A 范学铭
%A 孙国娜
%J 动物学研究
%D 2004
%I Chinese Academy of Sciences
%X To investigate the hazards of Hydra robusta to fish fry of Coilia mystus at the earlier development stage,we designed an experiment to put a fish fry (1-7 days of age) in the cultured solution of 200 milliliter contained 1-5 polyps.Results of experimental data analyzed by two-way analysis of variance showed that:With the polyps density increased,the death rate of fish fry increased (up to died) and the average weight of fish fry was decreased significantly (P<0.01).With the age of fish fry increased,the death rate was decreased and the average weight was increased significantly (P<0.01).It is concluded that the hazards of Hydra robusta to fish fry of Coilia mystus is extremely serious,but becomes lower and lower with development of fish fry,however,it finally influences the increase in fish weight.
%K Hydra robusta
%K Fish-fry of Coilia mystus
%K Density
%K Age of fish fry
%K Death
%K Weight<br>强壮水螅
%K 凤尾鱼苗
%K 密度
%K 死亡
%K 体重
%K 鱼龄
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=7C502F1A6798ACE1B8C57E291C48C7F1&aid=F7EC5699573CF503&yid=D0E58B75BFD8E51C&vid=C5154311167311FE&iid=E158A972A605785F&sid=15251AE9C02726D3&eid=406BF8ED3BCE1927&journal_id=0254-5853&journal_name=动物学研究&referenced_num=1&reference_num=6