| HUANG Bangqin,LIU Yuan,XIANG Weiguo,TIAN Haojie,LIU Hongbin,CAO Zhenrui,HONG Huasheng. 2008. Grazing impact of microzooplankton on phytoplankton in the Xiamen Bay using pigment-specific dilution technique. Acta Oceanologica Sinica, (5):147－162 |
| Grazing impact of microzooplankton on phytoplankton in the Xiamen Bay using pigment-specific dilution technique |
| Grazing impact of microzooplankton on phytoplankton in the Xiamen Bay using pigment-specific dilution technique |
| Received:July 29, 2008 Revised:September 10, 2008 |
| DOI： |
| Key words:microzooplankton growth rate grazing mortality photosynthetic pigments Xiamen Bay dilution method |
| 中文关键词: microzooplankton growth rate grazing mortality photosynthetic pigments Xiamen Bay dilution method |
| 基金项目:The National Natural Science Foundatisn of China under contract Nos 40730846 and 40521003 and the National Basic Key Research Program of the Ministry of Science and Technology of China (China GLOBEC-IMBER Program) under contract No. 2006CB400604. |
| Author Name | Affiliation | E-mail | | HUANG Bangqin | State Key Laboratory of Marine Environmental Science, Environmental Science Research Center, Xiamen University, Xiamen 361005, China 2. Atmospheric, Marine and Coastal Environment Program and Department of Biology, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China | bqhuang@xmu.edu.cn | | LIU Yuan | State Key Laboratory of Marine Environmental Science, Environmental Science Research Center, Xiamen University, Xiamen 361005, China 2. Atmospheric, Marine and Coastal Environment Program and Department of Biology, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China | | | XIANG Weiguo | State Key Laboratory of Marine Environmental Science, Environmental Science Research Center, Xiamen University, Xiamen 361005, China 2. Atmospheric, Marine and Coastal Environment Program and Department of Biology, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China | | | TIAN Haojie | State Key Laboratory of Marine Environmental Science, Environmental Science Research Center, Xiamen University, Xiamen 361005, China 2. Atmospheric, Marine and Coastal Environment Program and Department of Biology, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China | | | LIU Hongbin | | | | CAO Zhenrui | State Key Laboratory of Marine Environmental Science, Environmental Science Research Center, Xiamen University, Xiamen 361005, China 2. Atmospheric, Marine and Coastal Environment Program and Department of Biology, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China | | | HONG Huasheng | State Key Laboratory of Marine Environmental Science, Environmental Science Research Center, Xiamen University, Xiamen 361005, China 2. Atmospheric, Marine and Coastal Environment Program and Department of Biology, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China | |
|
| Hits: 964 |
| Download times: 641 |
| Abstract: |
| Phytoplankton group-specific growth and microzooplankton grazing were determined seasonally using the dilution technique with high-performance liquid chromatography (HPLC) in the Xiamen Bay, a subtropical bay in southeast China, between May 2003 and February 2004. The results showed that growth rates of phytoplankton ranged from 0.71 to 2.2 d-1 with the highest value occurred in the inner bay in May. Microzooplankton grazing rates ranged from 0.5 to 3.1 d-1 with the highest value occurred in the inner bay in August. Microzooplankton grazing impact ranged from 39% to 95% on total phytoplankton Chl a biomass, and 65% to 181% on primary production. The growth and grazing rates of each phytoplankton group varied, the highest growth rate (up to 3.3 d-1) was recorded for diatoms in August, while the maximum grazing rate (up to 2.1 d-1) was recorded for chlorophytes in February in the inner bay. Among main phytoplankton groups, grazing pressure of microzooplankton ranged from 10% to 83% on Chl a biomass, and from 14% to 151% on primary production. The highest grazing pressure on biomass was observed for cryptophytes (83%) in August, while the maximum grazing pressure on primary production was observed for cyanobacteria (up to 151%) in December in the inner bay. Net growth rates of larger phytoplanktons (diatoms and dinoflagellates) were higher than those of smaller groups (prasinophytes, chlorophytes and cyanobacteria). Relative preference index showed that microzooplankton grazed preferentially on prasinophytes and avoided to harvest diatoms in cold seasons (December and February). |
| 中文摘要: |
| Phytoplankton group-specific growth and microzooplankton grazing were determined seasonally using the dilution technique with high-performance liquid chromatography (HPLC) in the Xiamen Bay, a subtropical bay in southeast China, between May 2003 and February 2004. The results showed that growth rates of phytoplankton ranged from 0.71 to 2.2 d-1 with the highest value occurred in the inner bay in May. Microzooplankton grazing rates ranged from 0.5 to 3.1 d-1 with the highest value occurred in the inner bay in August. Microzooplankton grazing impact ranged from 39% to 95% on total phytoplankton Chl a biomass, and 65% to 181% on primary production. The growth and grazing rates of each phytoplankton group varied, the highest growth rate (up to 3.3 d-1) was recorded for diatoms in August, while the maximum grazing rate (up to 2.1 d-1) was recorded for chlorophytes in February in the inner bay. Among main phytoplankton groups, grazing pressure of microzooplankton ranged from 10% to 83% on Chl a biomass, and from 14% to 151% on primary production. The highest grazing pressure on biomass was observed for cryptophytes (83%) in August, while the maximum grazing pressure on primary production was observed for cyanobacteria (up to 151%) in December in the inner bay. Net growth rates of larger phytoplanktons (diatoms and dinoflagellates) were higher than those of smaller groups (prasinophytes, chlorophytes and cyanobacteria). Relative preference index showed that microzooplankton grazed preferentially on prasinophytes and avoided to harvest diatoms in cold seasons (December and February). |
|
HTML
View Full Text
View/Add Comment Download reader |
| Close |
|
|
|
