两种海洋微藻内源醛类对中华哲水蚤繁殖的影响

通过室内实验研究了中肋骨条藻和海洋原甲藻对中华哲水蚤繁殖的影响,并采用顶空固相微萃取-气相色谱质谱法对两种微藻内源醛类进行定性定量分析。结果表明,与海洋原甲藻相比,中肋骨条藻对中华哲水蚤的存活率、产卵率和孵化率都存在负面影响。在微藻内源醛类分析中,检测到中肋骨条藻中含有6种醛类,而在海洋原甲藻中仅检测到两种醛类。不论是从单种醛类的含量上,还是醛类总含量上,中肋骨条藻中醛类含量都明显高于海洋原甲藻,这意味着硅藻释放的醛类物质对中华哲水蚤的繁殖和存活具有潜在的抑制作用。

Effects of aldehydes produced by two algae on Calanus sinicus reproduction

The effects of aldehydes produced by two algae Skeletonema costatum and Prorocentrum micans on reproduction of Calanus sinicus were investigated in laboratory. Aldehydes produced by these two algae were analyzed qualitatively and quantitatively by HS SPME/GC MS method. Compared with P. micans, S. costatum showed negative effects on female survival, egg production and egg hatching of C. sinicus. Six kinds of aldehydes were detected in S. costatum, while only 2 kinds were detected in P. micans. The content of any single aldehyde or total aldehydes in S. costatum were significantly higher than those in P. micans, indicating that the aldehydes produced by diatom could cause potential negative effects on the reproduction and survival of C. sinicus.