meristic

meristic variation.

器官排列的变异

juvenile stage Young fish, fundamentally like the adult in meristic characters (excluding scalation) but smaller and reproductively inactive.

幼鱼期幼鱼，基本上类似成鱼的体节特(除了鳞片形状)但是比较小的且生殖未活化。

adult Fish that have fully developed morphological and meristic characters and that have attained sexual maturity.

成鱼已经完而具有所有形态特的个体,或指已经达到性成熟的个体。