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Study on ecosystem health and variation trend at the Changjiang River Estuary in the past 30 years
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Yaohui Chen1, 2, Shouhai Liu2, 3, Yanlong He2, 3, Yutao Qin2, 3, Xiao Ji2, 3, Haofei Zhang2, 3, Ren Xu4, *
Haiyang Xuebao | 2020, 42(4) : 55 - 65
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Haiyang Xuebao | 2020, 42(4): 55-65
• Marine Biology •
Study on ecosystem health and variation trend at the Changjiang River Estuary in the past 30 years
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Yaohui Chen1, 2, Shouhai Liu2, 3, Yanlong He2, 3, Yutao Qin2, 3, Xiao Ji2, 3, Haofei Zhang2, 3, Ren Xu4, *
Affiliations
  • 1 College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai 201306, China
  • 2 Key Laboratory of Marine Ecological Monitoring and Restoration Technology, Ministry of Natural Resources, Shanghai 201206, China
  • 3 East China Sea Environmental Monitoring Center, State Oceanic Administration, Shanghai 201206, China
  • 4 Polar Research Institute, Ministry of Natural Resources, Shanghai 200136, China
Published: 2020-04-25 doi: 10.3969/j.issn.0253-4193.2020.04.007
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In order to assess the health status of ecosystem on the Changjiang River Estuary waters, the ichthyoplankton is used to be indicators. Selecting 10 evaluation indices, which are the total number of ichthyoplankton species, number of benthic species, number of column species, number of intolerant species, proportion of tolerant species, proportion of omnivores, proportion of insectivorous, proportion of carnivores, number of individuals in each sample, proportion of hybrid. This study calculates the estuarine biotic integrity index (EBI) value of the 1986, 1999, 2007 and 2016 by using 1, 3, and 5 approximation of value assignment, and assesses the change trend of the ecosystem health in the Changjiang River Estuary water in recent 30 years. The results show that in 1986, 1999, 2007 and 2016, the EBI values were 52, 40, 36 and 34, respectively, and the corresponding EBI levels were “good”, “fair”, “fair-poor” and “poor”, respectively. By analyzing the results of EBI annual changes, it was found that the health status of ecosystem in the Changjiang River Estuary in recent 30 years showed a trend of declining first and then maintaining at a low level, indicating that the ecosystem of the Changjiang River Estuary waters is urgent to carry out timely protection and restoration.

ecosystem health  /  ichthyoplankton  /  the estuarine biotic integrity index  /  interannual variability
Yaohui Chen, Shouhai Liu, Yanlong He, Yutao Qin, Xiao Ji, Haofei Zhang, Ren Xu. Study on ecosystem health and variation trend at the Changjiang River Estuary in the past 30 years[J]. Haiyang Xuebao, 2020 , 42 (4) : 55 -65 . DOI: 10.3969/j.issn.0253-4193.2020.04.007
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Article Info
doi: 10.3969/j.issn.0253-4193.2020.04.007
  • Receive Date：2019-05-27
  • Online Date：2026-03-26
  • Published：2020-04-25
Article Data
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History
  • Received：2019-05-27
  • Revised：2019-08-28
Funding
Affiliations
    1 College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai 201306, China
    2 Key Laboratory of Marine Ecological Monitoring and Restoration Technology, Ministry of Natural Resources, Shanghai 201206, China
    3 East China Sea Environmental Monitoring Center, State Oceanic Administration, Shanghai 201206, China
    4 Polar Research Institute, Ministry of Natural Resources, Shanghai 200136, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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