| Standing crop and primary production of benthic microalgae on tidal flats in the Sanggou and Jiaozhou Bays, China |
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| 作者姓名： | Ning Xiuren Cai Yuming Liu Zilin Hu Xigang Liu Chenggang |
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| 作者单位： | 宁修仁(Second Institute of Oceanography,State Oceanic Administration,Hangzhou 310012,China;SOA Key Labs of Submarine Sciences and Ocean Dynamic Processes & Satellite Oceanography,Hangzhou 310012,China);蔡昱明,刘子琳,胡锡钢,刘诚刚(Second Institute of Oceanography,State Oceanic Administration,Hangzhou 310012,China) |
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| 基金项目： | This study was supported by EC Project under contract No.ERB3514PL97 2439 with the contract No.ERB IC18-CT98-0291. |
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| 摘 要： | The standing crop and primary production of benthic microalgae on tidal flats have seasonally been observed in the Sanggou and Jiaozhou Bays of the northern China coast during 1999 - 2000. The results show that the annual primary productions of benthic microalgae on tidal flats in the two bays are 2 532 and 7 542 tons carbon, which would be able to support 3.1 x 103 and 9.2 x 103 tons shellfish meat, respectively. The nature of sediment is essential for governing the biomass and primary production of benthic microalgae on tidal flats. The biomass and primary production of benthic microalgae on tidal flats with muddy sediments are higher than those with sandy sediments, which resulted from higher nutrient concentration and lower grazing pressure. That is the reason why in comparison with Xiangshan Bay the standing crop and production of benthic microalgae on tidal flats of the Sanggou and Jiaozhou Bays are low. Light was a key factor controlling vertical distribution of biomass and production of benthic
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| 关 键 词： | Chlorophyll a and phaeopigments primary production benthic microalgae microphyto-benthos tidal flats the Sanggou Bay the Jiaozhou Bay |
| 收稿时间： | 2/1/2002 12:00:00 AM |
| 修稿时间： | 8/6/2002 12:00:00 AM |
Standing crop and primary production of benthic microalgae on tidal flats in the Sanggou and Jiaozhou Bays, China |
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| Ning Xiuren,Cai Yuming,Liu Zilin,Hu Xigang,Liu Chenggang.Standing crop and primary production of benthic microalgae on tidal flats in the Sanggou and Jiaozhou Bays, China[J].Acta Oceanologica Sinica,2003,22(1):75-87. |
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| Authors: | Ning Xiuren Cai Yuming Liu Zilin Hu Xigang and Liu Chenggang |
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| Institution: | Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China |
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| Abstract: | The standing crop and primary production of benthic microalgae on tidal flats have seasonally been observed in the Sanggou and Jiaozhou Bays of the northern China coast during 1999 - 2000. The results show that the annual primary productions of benthic microalgae on tidal flats in the two bays are 2 532 and 7 542 tons carbon, which would be able to support 3.1 x 103 and 9.2 x 103 tons shellfish meat, respectively. The nature of sediment is essential for governing the biomass and primary production of benthic microalgae on tidal flats. The biomass and primary production of benthic microalgae on tidal flats with muddy sediments are higher than those with sandy sediments, which resulted from higher nutrient concentration and lower grazing pressure. That is the reason why in comparison with Xiangshan Bay the standing crop and production of benthic microalgae on tidal flats of the Sanggou and Jiaozhou Bays are low. Light was a key factor controlling vertical distribution of biomass and production of benthic microalgae on tidal flats of the two bays, resulted in appearance of maximum chlorophyll a and primary production at the surface layer and sharply decreased with depth of sediment. |
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| Keywords: | Chlorophyll a and phaeopigments primary production benthic microalgae microphyto-benthos tidal flats the Sanggou Bay the Jiaozhou Bay |
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