6． 泡沫巢浮性卵 ·························6
7． 筑巢产卵 ·······························6
8． 缠丝性卵 ·······························6
9． 卵胎生 ··································6
第四节　鱼卵、 鱼苗的鉴定方法 ·······················6
一、 鱼卵阶段 ···································6
1． 卵膜径法 ·······························6
2． 色彩法 ··································7
3． 局部形态法 ····························8
二、 仔鱼、 稚鱼阶段 ··························8
1． 形态法 ··································8
2． 肌节法 ··································8
3． 眼径测定法 ·························· 10
4． 眼睛与听囊、 嗅囊关系法 ···························· 11
5． 黑色素区别法 ······················· 12
6． 简易鉴定法 ·························· 19
第二章　分　　论
**节　鲟形目 ACIPENSERIFORMES································· 30
鲟科 Acipenseridae···························· 3 中华鲟····································· 30

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