摘要
ｐＨ对紫彩血蛤（Ｎｕｔａｌｉａｏｌｉｖａｃｅａ）幼虫生长、存活和变态有影响，ｐＨ６．４４～９．５１时培养幼虫均能得到变态的稚贝，说明ｐＨ对幼虫变态率影响较小，但对幼虫存活率影响较大；ｐＨ８．００～８．４７时，存活率较高，为９１．０％以上，高于或低于此ｐＨ范围，其存活率呈下降趋势；ｐＨ９．５１时最低，仅为３４．０％。低ｐＨ组在培养早期幼虫出现畸形，死亡较多。
Spats can be obtained when the larvae are cultured at a pH range of 6.44～9.51.The effects of pH on larval metamorphosis rate are slight,but great on the survival rate. At a pH range of 8.00～8.47,the survival rate is above 91 0%, and at higher or lower pH the survival rate progressively gets down.At pH 9.51,the survival rate is the lowest(34 0%).At lower pH,the larvae get deformed and have high mortality at the early stage of larval culture.At higher pH,the larvae have high mortality at the latter stage.
出处
《中国水产科学》
CAS
CSCD
1999年第1期54-56,共3页
Journal of Fishery Sciences of China
关键词
紫彩血蛤
PH
幼虫
变态
存活率
Nuttallia olivacea,pH,larvae,metamorphosis,survival rate
