Estimating ecological carrying capacity for stock enhancement in marine ranching ecosystems of Northern China

doi:10.3389/fmars.2022.936028

	Estimating ecological carrying capacity for stock enhancement in marine ranching ecosystems of Northern China
	Wang, Zhaoguo 1; Feng, Jie 2; Lozano-Montes, Hector M.3; Loneragan, Neil R.3; Zhang, Xiumei 4; Tian, Tao 1,5; Wu, Zhongxin 1,5
	2022-09-12
发表期刊	FRONTIERS IN MARINE SCIENCE
卷号	9 页码:15
通讯作者	Tian, Tao(tian2007@dlou.edu.cn) ; Wu, Zhongxin(wuzhongxin@dlou.edu.cn)
摘要	Marine ranching has been proposed as a promising solution to manage the depleted coastal fishery ecosystem in recent decades across China. Marine ranching integrates the practices of artificial habitat-based with aquaculture-based enhancement. Assessing the ecological carrying capacity of target species for enhancement is a precondition for determining the optimal numbers for release, particularly for those species whose habitat restrictions have been eliminated through the construction of artificial habitats in the marine ranch. A responsible approach to stock enhancement aims not only to increase total yield and stock abundance but also to consider any potential effects on ecosystem structure and function. A time-dynamic, ecosystem model was constructed using Ecopath with Ecosim for the Laizhou Bay (Bohai Sea) marine ranching ecosystem in the nearshore waters of northern China. Two sedentary target species with potential for stock enhancement, i.e., the carnivorous red snail Rapana venosa and the detritivorous sea cucumber Apostichopus japonicus, were selected to simulate and estimate their ecological carrying capacities and project their overall effects on the ecosystem. Ecological carrying capacity was defined as the maximum standing stocks of the target species that would not cause "unacceptable" impacts on the ecosystem function and resilience, i.e., not cause any other group's biomass to fall below 10% of its original biomass. The ecological carrying capacities estimated for R. venosa and A. japonicus were 623.46 and 200.57 t center dot km(-2), respectively, corresponding to 7.8 and 5.0 times higher than their current standing stocks. Simulations of R. venosa enhancement showed distinct effects of increased target species abundance on other functional groups and ecosystem properties. An increase in red snail biomass caused negative impacts on the biomass of most other functional groups and ecosystem indicators, such as Finn's cycling index, transfer efficiency, and Kempton's Q index. In contrast, the simulated A. japonicus enhancement had relatively few impacts, and the biomasses of most other functional groups and ecosystem indicators did not change or changed very slightly (<5%). The current model framework provides a means of estimating the ecological carrying capacity in commercial-scale stock enhancement practices and avoiding potential ecological risks for marine ranching in northern China.
关键词	Rapana venosa Apostichopus japonicus Laizhou Bay artificial habitats aquaculture-based enhancement ecosystem effects ecological risk
DOI	10.3389/fmars.2022.936028
收录类别	SCI
语种	英语
资助项目	National Key Research and Development Program of China ; National Natural Science Foundation of China ; Dalian innovation and entrepreneurship project for high-level talents ; Dalian Science and Technology Innovation Fund ; [2019YFD0901304] ; [41906125] ; [2020RQ112] ; [2021JJ11CG001]
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology
WOS类目	Environmental Sciences ; Marine & Freshwater Biology
WOS记录号	WOS:000860487400001
出版者	FRONTIERS MEDIA SA
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/180748
专题	海洋生态与环境科学重点实验室
通讯作者	Tian, Tao; Wu, Zhongxin
作者单位	1.Dalian Ocean Univ, Ctr Marine Ranching Engn Sci Res Liaoning, Dalian, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao, Peoples R China 3.Murdoch Univ, Environm & Conservat Sci & Harry Butler Inst, Perth, Australia 4.Zhejiang Ocean Univ, Coll Fisheries, Zhoushan, Peoples R China 5.Dalian Ocean Univ, Key Lab Environm Controlled Aquaculture, Minist Educ, Dalian, Peoples R China
推荐引用方式 GB/T 7714	Wang, Zhaoguo,Feng, Jie,Lozano-Montes, Hector M.,et al. Estimating ecological carrying capacity for stock enhancement in marine ranching ecosystems of Northern China[J]. FRONTIERS IN MARINE SCIENCE,2022,9:15.
APA	Wang, Zhaoguo.,Feng, Jie.,Lozano-Montes, Hector M..,Loneragan, Neil R..,Zhang, Xiumei.,...&Wu, Zhongxin.(2022).Estimating ecological carrying capacity for stock enhancement in marine ranching ecosystems of Northern China.FRONTIERS IN MARINE SCIENCE,9,15.
MLA	Wang, Zhaoguo,et al."Estimating ecological carrying capacity for stock enhancement in marine ranching ecosystems of Northern China".FRONTIERS IN MARINE SCIENCE 9(2022):15.