Journal of Marine Sciences ›› 2023, Vol. 41 ›› Issue (4): 102-112.DOI: 10.3969/j.issn.1001-909X.2023.04.010

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Macrobenthos community and living organic carbon pools on muddy tidal flat: Implications from Aiwan Bay of Wenling in summer

TIAN Sujie(), TANG Yanbin, YU Peisong, LIU Chenggang, LIU Qinghe, ZHANG Rongliang, SHOU Lu, ZENG Jiangning, LIAO Yibo()   

  1. Key Laboratory of Marine Ecosystem Dynamics, Second Institute of Oceanography, MNR, Hangzhou 310012, China
  • Received:2022-08-25 Revised:2023-03-21 Online:2023-12-15 Published:2024-01-30


The intertidal zone is a key area connecting terrestrial ecosystems and marine ecosystems, among which muddy tidal flat is an important and easily overlooked CO2 collection habitat, and the macrobenthos play a central role in the input, transport and preservation of carbon. Macrobenthos community and living organic carbon pools of muddy tidal flat were analyzed in Aiwan Bay, eastern coast of Zhejiang Province in summer. The average abundance of macrobenthos was 105.2 ±37.2 ind/m2, and the average biomass was 46.9 ±6.4 g/m2. The major taxa components within the habitat were crustaceans and mollusks, and the ecosystem health status was excellent. The organic carbon contents of macrobenthos at Aiwan Bay from highest to lowest were other animals including fish and nemertinea (40.95%), polychaetas (22.98%), crustaceans (17.24%), echinoderms (15.90%), mollusks (10.76%), and estimated the macrobenthos carbon pool was 163.90 Mg, of which crustaceans have the largest contribution rate, accounting for 59.80%. The exploration of macrobenthos community structure and living organic carbon pools size in muddy tidal flat can provide scientific suggestion for constructing the blue carbon survey system and supply fundamental data to further quantify the overall carbon pool size in coastal habitats.

Key words: macrobenthos, blue carbon ecosystem, living carbon pool, muddy tidal flat

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