Historical changes in nutrient structure and its influences on phytoplantkon composition in Jiaozhou Bay
文献类型：期刊论文
| 作者 | Shen, ZL |
| 刊名 | ESTUARINE COASTAL AND SHELF SCIENCE
 |
| 出版日期 | 2001-02-01 |
| 卷号 | 52期号:2页码:211-224 |
| 关键词 | Nutrients Ratios Historical Changes Nutrient Structure Nutrient Balance Limitation/limiting Phytoplankton Jiaozhou Bay |
| ISSN号 | 0272-7714 |
| 文献子类 | Article |
| 英文摘要 | Due to the influence of human activities, nutrient concentrations, nutrient ratios and phytoplankton composition have notably changed in Jiaozhou Bay, China since the 1960s. From the 1960s to the 1990s, nutrient concentrations have increased 1.4 times for PO4-P, 4.3 times for NO3-N, 4.1 times for NH4-N and 3.9 times for DIN. The atomic ratio of DIN:PO4-P increased very rapidly from 15.9 +/- 6.3 for the 1960s, to 37.8 +/- 22.9 for the 1990s. SiO3-Si concentration has remained at a very low level from the 1980s to the 1990s. The high ratio of DIN: PO4-P and low ratios of SiO3-Si:PO4-P (7.6 +/- 8.9) and SiO3-Si:DIN (0.19 +/- 0.15) showed the nutrient structure of Jiaozhou Bay has changed from more balanced to unbalanced during the last 40 years. The possibility that DIN and/or PO4-P as limiting factors of Jiaozhou Bay phytoplankton has been lessened or eliminated and that of SiO3-Si limiting has been increased. The changes in nutrient structure may have led to the decrease of large diatoms and a shift of phytoplankton species composition. It is likely that there is a trend from large diatoms to smaller cells in Jiaozhou Bay. (C) 2001 Academic Press.; Due to the influence of human activities, nutrient concentrations, nutrient ratios and phytoplankton composition have notably changed in Jiaozhou Bay, China since the 1960s. From the 1960s to the 1990s, nutrient concentrations have increased 1.4 times for PO4-P, 4.3 times for NO3-N, 4.1 times for NH4-N and 3.9 times for DIN. The atomic ratio of DIN:PO4-P increased very rapidly from 15.9 +/- 6.3 for the 1960s, to 37.8 +/- 22.9 for the 1990s. SiO3-Si concentration has remained at a very low level from the 1980s to the 1990s. The high ratio of DIN: PO4-P and low ratios of SiO3-Si:PO4-P (7.6 +/- 8.9) and SiO3-Si:DIN (0.19 +/- 0.15) showed the nutrient structure of Jiaozhou Bay has changed from more balanced to unbalanced during the last 40 years. The possibility that DIN and/or PO4-P as limiting factors of Jiaozhou Bay phytoplankton has been lessened or eliminated and that of SiO3-Si limiting has been increased. The changes in nutrient structure may have led to the decrease of large diatoms and a shift of phytoplankton species composition. It is likely that there is a trend from large diatoms to smaller cells in Jiaozhou Bay. (C) 2001 Academic Press. |
| 学科主题 | Marine & Freshwater Biology ; Oceanography |
| 语种 | 英语 |
| WOS记录号 | WOS:000167531000006 |
| 公开日期 | 2010-12-22 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/2835]  |
| 专题 | 海洋研究所_海洋生态与环境科学重点实验室 |
| 作者单位 | Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shen, ZL. Historical changes in nutrient structure and its influences on phytoplantkon composition in Jiaozhou Bay[J]. ESTUARINE COASTAL AND SHELF SCIENCE,2001,52(2):211-224. |
| APA | Shen, ZL.(2001).Historical changes in nutrient structure and its influences on phytoplantkon composition in Jiaozhou Bay.ESTUARINE COASTAL AND SHELF SCIENCE,52(2),211-224. |
| MLA | Shen, ZL."Historical changes in nutrient structure and its influences on phytoplantkon composition in Jiaozhou Bay".ESTUARINE COASTAL AND SHELF SCIENCE 52.2(2001):211-224. |
入库方式： OAI收割
来源：海洋研究所
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