| A preliminary study on benthos food web structure of tidal zone in the Laoshan Bay by using stable carbon isotopes |
| |
| 作者姓名： | Cai Deling Hong Xuguang Mao Xinghu Zhang Shufang Gao Sulan |
| |
| 作者单位： | First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China,First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China,First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China,First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China,First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China |
| |
| 基金项目： | This project was supported by the National Natual Science Foundation of China under contract No. 39170172. |
| |
| 摘 要： | By analyses of carbon isotopic composition(δ13C values) of the benthos collected in the Laoshan Bay in August 1993 and February and May 1994, it is found that the main food sources of the benthos can be divided into four groups in terms of carbon isotope composition: Particulate Organic Matter (POM),benthic diatoms, benthic macroalgae and the organic matter in sediments.The results show that the carbon isotopic composition of the benthic animals has a close relation with that of the food they take in.The carbon isotopic compositions of benthos may be useful in elucidating their food sources.The carbon isotopic data have confirmed that POM is the main food source of the benthic filter feeders such as bivalves; crustaceans have a wide range of δ13C values, showing their food source has diversity; benthic diatoms are an important fraction of the food for most of gastropods.A preliminary investigation of the benthic-pelagic coupling in that region using the stable carbon isotopic tracers has confirmed the importance of POM as a food source for benthos in this region,but the organic matter in sediments and benthic diatoms are also relatively important for a lot of benthic animals.The benthic-pelagic coupling in the Laoshan Bay temperate ecosystem is not so tight as that in ecosystems at higher latitudes such as north-eastern water polynya.
|
| 关 键 词： | Carbon isotopes food web benthos trophic level |
| 收稿时间： | 1999/12/21 0:00:00 |
| 修稿时间： | 5/8/2000 12:00:00 AM |
A preliminary study on benthos food web structure of tidal zone in the Laoshan Bay by using stable carbon isotopes |
| |
| Cai Deling,Hong Xuguang,Mao Xinghu,Zhang Shufang,Gao Sulan.A preliminary study on benthos food web structure of tidal zone in the Laoshan Bay by using stable carbon isotopes[J].Acta Oceanologica Sinica,2000,19(4):81-89. |
| |
| Authors: | Cai Deling Hong Xuguang Mao Xinghu Zhang Shufang and Gao Sulan |
| |
| Institution: | First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China |
| |
| Abstract: | By analyses of carbon isotopic composition(δ13C values) of the benthos collected in the Laoshan Bay in August 1993 and February and May 1994, it is found that the main food sources of the benthos can be divided into four groups in terms of carbon isotope composition:Particulate Organic Matter (POM),benthic diatoms, benthic macroalgae and the organic matter in sediments.The results show that the carbon isotopic composition of the benthic animals has a close relation with that of the food they take in.The carbon isotopic compositions of benthos may be useful in elucidating their food sources.The carbon isotopic data have confirmed that POM is the main food source of the benthic filter feeders such as bivalves; crustaceans have a wide range of δ13C values, showing their food source has diversity; benthic diatoms are an important fraction of the food for most of gastropods.A preliminary investigation of the benthic-pelagic coupling in that region using the stable carbon isotopic tracers has confirmed the importance of POM as a food source for benthos in this region,but the organic matter in sediments and benthic diatoms are also relatively important for a lot of benthic animals.The benthic-pelagic coupling in the Laoshan Bay temperate ecosystem is not so tight as that in ecosystems at higher latitudes such as north-eastern water polynya. |
| |
| Keywords: | Carbon isotopes food web benthos trophic level |
|
| 点击此处可从《海洋学报(英文版)》浏览原始摘要信息 |
| 点击此处可从《海洋学报(英文版)》下载免费的PDF全文 |
|
