曼氏无针乌贼不同世代养殖群体的形态学比较

Morphological Comparison of Sepiella japonica in Different Generations of Cultured Populations

[目的]对曼氏无针乌贼不同世代养殖群体进行形态学比较。[方法]采用形态学分析方法,通过单因素方差分析和多重比较对浙江舟山地区曼氏无针乌贼F_1、F_2、F_3养殖世代群体的形态学指标进行了比较。[结果]在检测的10项形态学指标中,体重、胴宽、海螵蛸壳重、壳长、壳高在3个养殖世代间存在显著差异(P<0.05),但胴长/胴宽在3个养殖世代间无显著差异(P>0.05)。[结论]研究结果为曼氏无针乌贼的种质资源保护与开发提供了一定的理论依据。

[ Objective ] To make morphological comparison on different generations of cultured populations of S. japonica. [ Method J The mor- phological indices of three generations of cultured Sepiellajaponica populations （ F1, F2 and F3 ） were analyzed by the traditional morphological method, One-way ANOVA and multiple analysis comparisons. [ Resuh]5 indices （body weight, mantle width, cuttlebone weight, cuttlebone length,cuttlebone height） of 10 morphological indices tested had significant difference among three generations of cultured populations,while there was no significant difference of mantle length/mantle width among three generations of cultured populations. [ Conclusion] These results can provide certain theoretical basis for S. japonica resources＇ conservation and development.