大黄鱼早期发育的形态学研究

描述了大黄鱼(Pseudosciaena crocea(Richardson))早期发育(从受精至幼鱼早期)的主要特征，并对仔、稚、幼鱼各时期的划分进行研究，提出了界定标怎：仔鱼前期(日龄l一8d，持续8d)以油球消失为界；仔鱼后期(日龄9—20d，持续12d)以各鳍齐全为界；稚鱼前期(日龄2l一29d，持续9d)以枕骨棘完备为界；稚鱼后期(日龄30—35d，持续6d)以全身被鳞为界；36日龄以后进入幼鱼早期。

MORPHOLOGICAL STUDIES ON THE EARLY DEVELOPMENT OF LARGE YELLOW CROAKER, Pseudosciaena crocea (Richardson)

This paper deals with the main characters of the early development of Large Yellow Croaker, from zygote to larval fish. We study above the definition of each stages on the early development and put forward the divisible sign: from first day to oil-ball disappear, it is called Prolarval (from 1 d old to 8 d old, continuing 8 d); when each fin completely forms, it is called Postlarval (from 9 d old to 20 d old, continuing 12 d) ; when occipital bone spine completes, it is called Projuvenile (from 21 d old to 29 d old, continuing 9 d) ; when the whole body is covered with scales we call it Postjuvenile (from 30 d old to 35 d old, continuing 6 d); after 36 d old comes larval fish period.