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Seasonal variation in the trophic structure of food webs in coastal waters of Jiangsu Province based on stable isotope techniques
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Ya’nan Lu1, Rui Zhang1, Hu Zhang2, Shuo Zhang1, 3, *, Shike Gao1, *
Haiyang Xuebao | 2022, 44(2) : 1 - 10
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Haiyang Xuebao | 2022, 44(2): 1-10
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Seasonal variation in the trophic structure of food webs in coastal waters of Jiangsu Province based on stable isotope techniques
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Ya’nan Lu1, Rui Zhang1, Hu Zhang2, Shuo Zhang1, 3, *, Shike Gao1, *
Affiliations
  • 1. College of Marine Sciences, Shanghai Ocean University, Shanghai 201306, China
  • 2. Jiangsu Marine Fisheries Research Institute, Nantong 226007, China
  • 3. Joint Laboratory for Monitoring and Conservation of Aquatic Living Resources in the Yangtze Estuary, Shanghai 200922, China
Published: 2022-02-28 doi: 10.12284/hyxb2022040
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In this study, we used stable isotope technology to analyze different species (fish, crustaceans, cephalopods, benthos, etc.) collected in spring, summer and autumn in the coastal waters of Jiangsu Province. We used SIBER model to calculate the trophic niche of consumers, and calculated the quantitative indicators of six metrics in different seasons. The results showed that there were no significant differences in δ13C and nitrogen δ15N values among three seasons (p>0.05). In spring, the δ13C values ranged from −24.47‰ to −14.50‰, the δ15N values ranged from 6.86‰ to (14.98±0.49)‰, and the trophic level ranged from 1.52 to 4.28±0.17. In summer, the δ13C values ranged from −19.86‰ to −14.44‰, the δ15N values ranged from 5.79‰ to (12.54±3.50)‰, and the trophic level ranged from 1.25 to 3.52. In autumn, the δ13C values ranged from (−22.17±4.90)‰ to (−14.21±0.36)‰, the δ15N values ranged from 6.30‰ to (14.60±0.51)‰, and the trophic level ranged from 1.34 to 4.15±0.14. The structure of food web was stable in each season, and the trophic niche of some species overlaps in different degrees. In addition, the food sources are more extensive, and the trophic level and community diversity are higher in spring, the food sources of consumers are more abundant, but the degree of trophic niche differentiation is lower in summer, while in autumn, the structure of food web is relatively simple, but the distribution of trophic niche is wider.

stable isotopes  /  coastal waters of Jiangsu Province  /  trophic structure  /  trophic niche  /  seasonal variation
Ya’nan Lu, Rui Zhang, Hu Zhang, Shuo Zhang, Shike Gao. Seasonal variation in the trophic structure of food webs in coastal waters of Jiangsu Province based on stable isotope techniques[J]. Haiyang Xuebao, 2022 , 44 (2) : 1 -10 . DOI: 10.12284/hyxb2022040
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Year 2022 volume 44 Issue 2
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Article Info
doi: 10.12284/hyxb2022040
  • Receive Date：2021-07-14
  • Online Date：2026-02-01
  • Published：2022-02-28
Article Data
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History
  • Received：2021-07-14
  • Revised：2021-10-24
Funding
Affiliations
    1. College of Marine Sciences, Shanghai Ocean University, Shanghai 201306, China
    2. Jiangsu Marine Fisheries Research Institute, Nantong 226007, China
    3. Joint Laboratory for Monitoring and Conservation of Aquatic Living Resources in the Yangtze Estuary, Shanghai 200922, 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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