Effect of nitrogen to phosphorus ratios on cell proliferation in marine micro algae

The ratio of nitrogen/phosphorus （N/P） is known to affect cell proliferation of some marine micro algae. We evaluated the effect of N/P ratios on the proliferation and succession of phytoplankton using five marine micro algae species. We used two sources of nitrogen, NH4Cl （N1） and urea （N2）, and a...

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Bibliographic Details
Published inChinese journal of oceanology and limnology Vol. 29; no. 4; pp. 739 - 745
Main Author 张青田 胡桂坤
Format Journal Article
LanguageEnglish
Published Heidelberg SP Science Press 01.07.2011
Springer Nature B.V
Subjects
Alexandrium
Algae
Algal blooms
Ammonium chloride
Cell proliferation
Chaetoceros gracilis
Chroomonas salina
Coastal waters
Earth and Environmental Science
Earth Sciences
Eutrophication
Heterosigma akashiwo
Marine
Marine ecology
N:P Ratios
Nitrogen
Nutrient Loads and Ecology
Oceanography
Phosphorus
Phytoplankton
Plankton
Plankton blooms
Proliferation
Sodium phosphate
Thalassiosira
Urea
比值
氮源
浮游植物
海洋微藻
磷酸二氢钠
纤细角毛藻
细胞增殖
赤潮异弯藻
proliferation
micro alga
nitrogen
phosphorus
ratio
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ISSN0254-4059
2096-5508
1993-5005
2523-3521
DOI10.1007/s00343-011-0503-y

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Summary:The ratio of nitrogen/phosphorus （N/P） is known to affect cell proliferation of some marine micro algae. We evaluated the effect of N/P ratios on the proliferation and succession of phytoplankton using five marine micro algae species. We used two sources of nitrogen, NH4Cl （N1） and urea （N2）, and a single source of phosphorous, NaH2PO4（P）. The optimal N/P ratio that differed among the five species was affected by the source of nitrogen, being as follows （N1/P, N2/P in order）： Thalassiosira sp. （30/1, 20/1）, Heterosigma akashiwo （30/1, 30/1）, Chroornonas salina （20/1, 30/1）, Chaetoceros gracilis （40/1, 60/1）, and A lexandrium sp. （10/1, 30/1）. Thus, the source of nitrogen must be considered when analyzing the N/P ratio. Our results provide insight for predicting phytoplankton succession in coastal waters and may be used to forecast the potential risk of harmful algal blooms.
Bibliography:nitrogen; phosphorus; ratio; proliferation; micro alga
ZHANG Qingtian , HU Guikun（1. Tianjin Key Laboratory of Marine Resources and Chemistry, Tianjin University of Science and Technology, Tianjin 300457, China 2 College of Fisheries, Ocean University of China, Qingdao 266003, China）
37-1150/P
The ratio of nitrogen/phosphorus （N/P） is known to affect cell proliferation of some marine micro algae. We evaluated the effect of N/P ratios on the proliferation and succession of phytoplankton using five marine micro algae species. We used two sources of nitrogen, NH4Cl （N1） and urea （N2）, and a single source of phosphorous, NaH2PO4（P）. The optimal N/P ratio that differed among the five species was affected by the source of nitrogen, being as follows （N1/P, N2/P in order）： Thalassiosira sp. （30/1, 20/1）, Heterosigma akashiwo （30/1, 30/1）, Chroornonas salina （20/1, 30/1）, Chaetoceros gracilis （40/1, 60/1）, and A lexandrium sp. （10/1, 30/1）. Thus, the source of nitrogen must be considered when analyzing the N/P ratio. Our results provide insight for predicting phytoplankton succession in coastal waters and may be used to forecast the potential risk of harmful algal blooms.
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ISSN:0254-4059
2096-5508
1993-5005
2523-3521
DOI:10.1007/s00343-011-0503-y