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Benthic food web structure of Xiaoqing River Estuary adjacent sea area revealed by carbon and nitrogen stable isotope analysis
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Chuanxin Zhang1, 2, Jing Chen2, Yinglu Ji3, Linlin Chen2, Haihui Li4, Quanchao Wang2, Baoquan Li2, *, Ronglian Xing1, *
Haiyang Xuebao | 2022, 44(1) : 89 - 100
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Haiyang Xuebao | 2022, 44(1): 89-100
• Article •
Benthic food web structure of Xiaoqing River Estuary adjacent sea area revealed by carbon and nitrogen stable isotope analysis
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Chuanxin Zhang1, 2, Jing Chen2, Yinglu Ji3, Linlin Chen2, Haihui Li4, Quanchao Wang2, Baoquan Li2, *, Ronglian Xing1, *
Affiliations
  • 1. College of Life Sciences, Yantai University, Yantai 264005, China
  • 2. Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China
  • 3. North China Sea Marine Forecasting Center, State Oceanic Administration, Qingdao 266061, China
  • 4. Shouguang Marine Fishery Development Center, Shouguang 262700, China
Published: 2022-01-15 doi: 10.12284/hyxb2022016
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To examine the benthos food web structure in the Xiaoqing River Estuary adjacent sea area, four potential food sources, including sediment organic matter (SOM), suspended particulate organic matter (POM), zooplankton and phytoplankton, and 35 aquatic organisms are collected in October 2020. Carbon and nitrogen stable isotope technique and Bayesian mixing model (MixSIAR) are used to analyze the food web structure and the trophic relationship of benthos. The results show that the δ13C and δ15N values of potential food sources varies from −25.56‰ to −17.91‰ and 2.43‰ to 10.33‰, respectively. Moreover, the δ13C and δ15N values of benthos varies from −23.48‰ to −18.31‰ and 8.79‰ to 18.01‰, respectively. The trophic levels of the main consumers rang from 1.65 (Arcuatula senhousia) to 3.54 (Ctenotrypauchen chinensis). Trophic relationship analysis showes that there are two main energy transfer pathways in the Xiaoqing River Estuary adjacent sea area. One is the planktonic food chain with plankton as the major energy source, in which bivalves (except Solen brevissimus), small shrimps, and polychaetes are the main primary consumers. The other is the benthic food chain with SOM as the major energy source, in which Solen brevissimus and gastropods are the main primary consumers. On the whole, there is a certain degree of niche overlap and fierce competition among species in the Xiaoqing River Estuary adjacent sea area.

Xiaoqing River Estuary adjacent sea area  /  food web structure  /  trophic level  /  stable isotope  /  food source  /  nutritional niche
Chuanxin Zhang, Jing Chen, Yinglu Ji, Linlin Chen, Haihui Li, Quanchao Wang, Baoquan Li, Ronglian Xing. Benthic food web structure of Xiaoqing River Estuary adjacent sea area revealed by carbon and nitrogen stable isotope analysis[J]. Haiyang Xuebao, 2022 , 44 (1) : 89 -100 . DOI: 10.12284/hyxb2022016
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Year 2022 volume 44 Issue 1
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Article Info
doi: 10.12284/hyxb2022016
  • Receive Date：2021-07-07
  • Online Date：2026-02-01
  • Published：2022-01-15
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History
  • Received：2021-07-07
  • Revised：2021-09-04
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Affiliations
    1. College of Life Sciences, Yantai University, Yantai 264005, China
    2. Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China
    3. North China Sea Marine Forecasting Center, State Oceanic Administration, Qingdao 266061, China
    4. Shouguang Marine Fishery Development Center, Shouguang 262700, 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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