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The potential carbon source and trophic level analysis of main organisms in coastal water of Lüsi fishing ground, based on carbon and nitrogen stable isotope analysis
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Shike Gao1, Wen Sun1, Shuo Zhang1, 2, *
Haiyang Xuebao | 2021, 43(6) : 71 - 80
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Haiyang Xuebao | 2021, 43(6): 71-80
• Article •
The potential carbon source and trophic level analysis of main organisms in coastal water of Lüsi fishing ground, based on carbon and nitrogen stable isotope analysis
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Shike Gao1, Wen Sun1, Shuo Zhang1, 2, *
Affiliations
  • 1College of Marine Sciences, Shanghai Ocean University, Shanghai 201306, China
  • 2Joint Laboratory for Monitoring and Conservation of Aquatic Living Resources in the Yangtze River Estuary, Shanghai 201306, China
Published: 2021-06-25 doi: 10.12284/hyxb2021066
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Trophic level among main organisms in costal water of Lüsi fishing ground in summer, 2018, were analyzed in this study by stable isotope method. Using IsoSource model, we calculated potential carbon source contribution of the phytoplankton, POM and SOM of consumers, and then compared the former and latter TLs variation of main organisms by overlapping potential carbon source influence. Results showed that phytoplankton and SOM were main potential carbon source of main organisms in costal water of Lüsi fishing ground in summer. Two trophic level spectrums were constructed by overlapping three potential carbon sources and a single species as the baseline organisms, respectively. The trophic level of the right trophic level spectrum ranged from 1.74 to 3.92, which was averagely 0.19 lower than that of the left trophic level spectrum. Although the overall trend was unchanged, the trophic positions of some fish and most shrimps were changed in two spectrums. The baseline organisms in the right trophic level spectrum changed with the different stacking ratio of potential carbon sources, which could reflect the trophic level more effectively and was more suitable for organisms at low trophic levels, such as shrimp and crabs. However, this had little impact on fish in the position of middle and advanced consumers.

stable isotope  /  Lüsi fishing ground  /  main organisms  /  potential carbon contribution  /  trophic level analysis
Shike Gao, Wen Sun, Shuo Zhang. The potential carbon source and trophic level analysis of main organisms in coastal water of Lüsi fishing ground, based on carbon and nitrogen stable isotope analysis[J]. Haiyang Xuebao, 2021 , 43 (6) : 71 -80 . DOI: 10.12284/hyxb2021066
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Article Info
doi: 10.12284/hyxb2021066
  • Receive Date：2020-12-25
  • Online Date：2026-02-26
  • Published：2021-06-25
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  • Received：2020-12-25
  • Revised：2021-01-25
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Affiliations
    1College of Marine Sciences, Shanghai Ocean University, Shanghai 201306, China
    2Joint Laboratory for Monitoring and Conservation of Aquatic Living Resources in the Yangtze River Estuary, Shanghai 201306, 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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