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Effects of temperature, salinity, and irradiance on the growth of harmful algal bloom species Phaeocystis globosa Scherffel (Prymnesiophyceae) isolated from the South China Sea
Xu Ning1; Huang Bozhu1; Hu Zhangxi2; Tang Yingzhong2; Duan Shunshan1; Zhang Chengwu1
2017-05-01
Source PublicationCHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
Volume35Issue:3Pages:557-565
SubtypeArticle
AbstractBlooms of Phaeocystis globosa have been frequently reported in Chinese coastal waters, causing serious damage to marine ecosystems. To better understand the ecological characteristics of P. globosa in Chinese coastal waters that facilitate its rapid expansion, the effects of temperature, salinity and irradiance on the growth of P. globosa from the South China Sea were examined in the laboratory. The saturating irradiance for the growth of P. globosa (I-s) was 60 mu mol/(m(2)center dot s), which was lower than those of other harmful algal species (70-114 mu mol/(m(2)center dot s)). A moderate growth rate of 0.22/d was observed at 2 mu mol/(m(2)center dot s) (the minimum irradiance in the experiment), and photo-inhibition did not occur at 230 mu mol/(m(2)center dot s) (the maximum irradiance in the experiment). Exposed to 42 different combinations of temperatures (10-31 degrees C) and salinities (10-40) under saturating irradiance, P. globosa exhibited its maximum specific growth rate of 0.80/d at the combinations of 24 degrees C and 35, and 27 degrees C and 40. The optimum growth rates (> 0.80/d) were observed at temperatures ranging from 24 to 27 degrees C and salinities from 35 to 40. While P. globosa was able to grow well at temperatures from 20 degrees C to 31 degrees C and salinities from 20 to 40, it could not grow at temperatures lower than 15 degrees C or salinities lower than 15. Factorial analysis revealed that temperature and salinity has similar influences on the growth of this species. This strain of P. globosa not only prefers higher temperatures and higher salinity, but also possesses a flexible nutrient competing strategy, adapted to lower irradiance. Therefore, the P. globosa population from South China Sea should belong to a new ecotype. There is also a potentially high risk of blooms developing in this area throughout the year.
KeywordPhaeocystis Globosa Harmful Algal Bloom Temperature Salinity Irradiance Growth
DOI10.1007/s00343-017-5352-x
Indexed BySCI
Language英语
WOS IDWOS:000399168400009
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.qdio.ac.cn/handle/337002/136723
Collection海洋生态与环境科学重点实验室
Affiliation1.Jinan Univ, Inst Hydrobiol, Guangzhou 510632, Guangdong, Peoples R China
2.Chinese Acad Sci, Inst Oceanol, Key Lab Ecol & Environm Sci, Qingdao 266071, Peoples R China
Recommended Citation
GB/T 7714
Xu Ning,Huang Bozhu,Hu Zhangxi,et al. Effects of temperature, salinity, and irradiance on the growth of harmful algal bloom species Phaeocystis globosa Scherffel (Prymnesiophyceae) isolated from the South China Sea[J]. CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2017,35(3):557-565.
APA Xu Ning,Huang Bozhu,Hu Zhangxi,Tang Yingzhong,Duan Shunshan,&Zhang Chengwu.(2017).Effects of temperature, salinity, and irradiance on the growth of harmful algal bloom species Phaeocystis globosa Scherffel (Prymnesiophyceae) isolated from the South China Sea.CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,35(3),557-565.
MLA Xu Ning,et al."Effects of temperature, salinity, and irradiance on the growth of harmful algal bloom species Phaeocystis globosa Scherffel (Prymnesiophyceae) isolated from the South China Sea".CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY 35.3(2017):557-565.
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