GROWTH INTERACTIONS BETWEEN THE BLOOM-FORMING DINOFLAGELLATES Prorocentrum donghaiense AND Karenia mikimotoi UNDER DIFFERENT TEMPERATURE
文献类型: 外文期刊
作者: Shen, Anglu 1 ; Yuan, Xingwei 2 ; Liu, Guangpeng 1 ; Li, Daoji 1 ;
作者机构: 1.China Normal Univ, State Key Lab Estuarine & Coastal Res, Shanghai 200062, Peoples R China
2.Chinese Acad Fishery Sci, East China Sea Fisheries Res Inst, Shanghai 200090, Peoples R China
关键词: Growth interaction;temperature;initial cell density;Prorocentrum donghaiense;Karenia mikimotoi
期刊名称:THALASSAS ( 影响因子:0.62; 五年影响因子:0.64 )
ISSN: 0212-5919
年卷期: 2014 年 30 卷 2 期
页码:
收录情况: SCI
摘要: Growth interactions between Prorocentrum donghaiense and Karenia mikimotoi, which are major harmful algal blooms (HABs) species in the East China Sea (ECS), were investigated by using bi-algal cultures under different temperatures. When the culture temperature was 16 degrees C, the growth of P. donghaiense and K mikimotoi in bi-algal cultures had influence or no influence on each other when the cell density ratio (P. donghaiense : K. mikimotoi) was 2:1 or 1:1, P donghaiense was not affected by K mikimotoi and K. mikimotoi was affected by P. donghaiense when the cell density ratio was 1:2 and just the opposite result when the cell density ratio was 1:4. When the culture temperature was 20 degrees C, the growth of K mikimotoi was suppressed by P. donghaiense in bi-algal cultures under the case that the initial density ratios were 2:1 and 1:1, two microalgae had no influence on each other when the cell density ratio was 1:2 and the growth of P. donghaiense was suppressed by K mikimotoi when the cell density ratio was 1:4. When the culture temperature was 24 degrees C, the growth of P donghaiense was suppressed by K. mikimotoi under all initial density ratios and P donghaiense cannot survive in bi-algal cultures when the initial cell density ratio was 1:4, the growth of K mikimotoi was not suppressed by P. donghaiense under the case that the initial density ratios were 1:1, 1:2 and 1:4. When the culture temperature was 28 degrees C, the growth of P donghaiense and K. mikimotoi had no influence on each other when the cell density ratios were 2:1 and 1:1, P donghaiense cannot survive in hi-algal cultures when the initial cell density ratios were 1:2 and 1:4. In a word, P. donghaiense has a survivial strategy that is superior to that of K mikimotoi in hi-algal cultures at low temperature (16 degrees C and 20 degrees C), K mikimotoi has a survivial strategy that is superior to that of P. donghaiense in hi-algal cultures at higher temperature (24 degrees C and 28 degrees C) and K mikimotoi became dominant when the initial cell density ratio was 1:4 under four temperatures. The results showed that the culture temperature and the initial cell density play key roles in the growth interactions between P donghaiense and K mikimotoi.
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