nauplius

基本解釋

With the forming of the antennula, the egg nauplius stage is identified.
在小觸角原基產(chǎn)生后，胚胎發(fā)育進(jìn)入卵內(nèi)無節(jié)幼體期。
Nauplius, protozoea and zoea can be further divided into 4, 3 and 2 substages, respectively.
各期又可分成無節(jié)幼體四期、蚤狀幼體三期及糠蝦二期。
Larval stages could be divided into four stages: nauplius, protozea, zoea and postlarva.
幼體的發(fā)育可分成四期:無節(jié)幼體、蚤狀幼體、糠蝦及仔蝦。
When it was 13 days old,the bait would changed to nauplius of Artemia and baby-size Cladocera、Copepoda.
13日齡后的仔魚開始陸續(xù)投喂鹵蟲無節(jié)幼體和小型的枝角類、橈足類等。
In the course of development, the invagination of stomodeum occurs earlier than that of proctodeum at the third and the sixth nauplius stages respectively.
在發(fā)育過程中,口凹是在第三期無節(jié)幼蟲時(shí)內(nèi)陷形成,而原肛是在第六期無節(jié)幼蟲時(shí)內(nèi)陷形成的,所以口凹的發(fā)生早于原肛的發(fā)生。