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铁、氮、磷、维生素B₁和B₁₂对海洋原甲藻的生长效应
朱从举, 齐雨藻, 郭昌弼
暨南大学水生生物研究所广州 510632

摘要:

4因子，2水平（铁为4水平）正交试验表明：络合铁和硝态氮对海洋原甲藻（Prorocentrum micans）的生长有极显著的促进作用（P＜0.01），维生素B₁，B₁₂混合液有显著促进作用（P＜0.05）。络合铁和硝态氮为大鹏湾浮游植物生长的营养限制因子。而磷酸盐的作用不显著。

关键词: 海洋原甲藻正交试验铁氮维生素B₁，B₁₂

DOI：

分类号:

基金项目:国家自然科学基金资助，9389008号

THE EFFECT OF IRON, VITAMINS B₁, B₁₂, NITROGEN AND PHOSPHORUS ON THE GROWTH OF PROROCENTRUM MICANS

Zhu Congju, Qi Yuzao, Guo Changbi

Institute of Hydrobiology, Jinan University, Guangzhou 510632

Abstract:

Seawater was collected from Dapeng Bay, South China Sea, in Oct., Nov., 1991 and Jan., 1992. Growth promoting nutrients were examined by using AGP (Algal growth potential) test procedure. Inorganic nitrogen, phosphorus, chelated iron and vitamin B₁, B₁₂ mixture were supplemented at various combinations and concentrations according to the orthogonal designed scheme.

The results showing that the maximum standing crop of Prorocentrum micans was enhanced very remarkably (P < 0.01) by nitrate and chelated iron and remarkably (P < 0.05) by a mixture of vitamin B₁ and B₁₂ but that phosphate had no remarkable effect suggested that in Dapeng Bay the former three factors are crucial in triggering red tide in the area.

Key words: Prorocentrum micans, Orthogonal designed Scheme, Iron, Nitrate, Vitamin B₁, B₁₂

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