Article (Scientific journals)
Ecological carrying capacity and carbon sequestration potential of bivalve shellfish in marine ranching: A case study in Bohai Bay, China
Li, Zepeng; Chen, Yan; Wang, Gang et al.
2023In Frontiers in Marine Science, 10
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Keywords :
bivalve shellfish; carbon budget; ecological carrying capacity; ecopath with ecosim; marine ranching
Abstract :
[en] Introduction: Shellfish play an important role in ecological restoration and as carbon (C) sinks, but studies on their ecological carrying capacity (ECC) and C sequestration potential are sparse. Methods: In this study, we selected a 57-hectare artificial oyster reef in a typical marine ranching in Bohai Bay, China, to evaluate the ECC and their C sequestration potential of bivalve shellfish, and projecting their impact on functional groups in the system, with an Ecopath with Ecosim (EwE) food web model. We conducted four biological surveys to obtain the biomass measurements, with one conducted in each of the summer, autumn, and winter of 2019 and one in the spring of 2020; and the functional groups included in the surveys comprised fish, cephalopods, crustaceans, snails, bivalve shellfish, annelids, other macrobenthos, meiobenthos, starfish, sea cucumbers, zooplankton, phytoplankton, and detritus. Results and Discussion: The EwE model prediction results showed that the ECC of bivalve shellfish was established to be 282.66 t/km2, far more than the existing quantity of 187.76 t/km2. Therefore, at present, the ecosystem of the study marine ranching is not yet mature. Moreover, our ecological network analysis parameters indicated that the marine ranching ecosystem will be mature and stable when the bivalve shellfish population reaches its ECC. However, the increase in bivalve shellfish biomass will result in a decrease in the population sizes of species competing for food resources with bivalve shellfish, mainly gobiid fish such as Tridentiger bifasciatus, Tridentiger trigonocephalus, Tridentiger barbatus. Simultaneously, when the bivalve shellfish reach their ECC, 29.23 t of CO2 can be sequestrated by bivalve shellfish, comprising 14.32 t being removed from the ecosystem as prey and 14.91 t being stored on the seafloor through biodeposition. Conclusion: Therefore, the research demonstrated that, within the scope of ECC, the increasing bivalve shellfish can improve the C sequestration capacity of the marine ranch ecosystem, and effective management of bivalve shellfish in marine ranching can improve the economic benefits and C sink service functions of marine ranching.
Disciplines :
Aquatic sciences & oceanology
Author, co-author :
Li, Zepeng;  Ocean College, Hebei Agricultural University, Qinhuangdao, China
Chen, Yan;  Fisheries Science Institute, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
Wang, Gang;  Marine Ecological Restoration and Smart Ocean Engineering Research Center of Hebei Province, Department of Science and Technology of Hebei Province, Qinhuangdao, China
Mu, Jiandong;  Hebei Marine Living Resources and Environment Key Laboratory, Department of Science and Technology of Hebei Province, Qinhuangdao, China
Sun, Yanfeng;  Ocean College, Hebei Agricultural University, Qinhuangdao, China
Yu, Haolin ;  Université de Liège - ULiège > Freshwater and OCeanic science Unit of reSearch (FOCUS) ; CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China
Xu, Jiangling;  North China Sea Marine Forecasting Center of State Oceanic Administration, State Oceanic Administration, Qingdao, China ; Shandong Provincial Key Laboratory of Marine Ecological Environment and Disaster Prevention and Mitigation, State Oceanic Administration, Qingdao, China
Yan, Ying;  Ocean College, Hebei Agricultural University, Qinhuangdao, China
Luo, Shuangyue;  Ocean College, Hebei Agricultural University, Qinhuangdao, China
Han, Fuqiang;  Ocean College, Hebei Agricultural University, Qinhuangdao, China
Feng, Jie;  CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China ; North China Sea Marine Forecasting Center of State Oceanic Administration, State Oceanic Administration, Qingdao, China ; Shandong Provincial Key Laboratory of Marine Ecological Environment and Disaster Prevention and Mitigation, State Oceanic Administration, Qingdao, China
Pan, Zhe;  Ocean College, Hebei Agricultural University, Qinhuangdao, China
Language :
English
Title :
Ecological carrying capacity and carbon sequestration potential of bivalve shellfish in marine ranching: A case study in Bohai Bay, China
Publication date :
2023
Journal title :
Frontiers in Marine Science
eISSN :
2296-7745
Publisher :
Frontiers Media S.A.
Volume :
10
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
NSCF - National Natural Science Foundation of China
Funding text :
This research was funded by the National Natural Science Foundation of China (Grant Nos. 42106102), Marine Ecological Restoration and Smart Ocean Engineering Research Center of Hebei Province (Grant Nos. HBMESO2303), the Natural Science Foundation of Hebei Province, China (Grant Nos. C2020204151 & C2021204059), Special Fund for Talent Introduction of Hebei Agricultural University, China (Grant Nos. YJ2020019 & YJ2020026), 2021 Hebei Agricultural University Provincial Universities Basic Research Business Fee Research Project (Grant Nos. KY2021013), and College of Oceanography, Hebei Agricultural University Entrepreneurship Project (Scientific Research) (2021KY04). Acknowledgments
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