气候变化领域集成服务门户(CCPortal): Unveiling seasonal changes in trophic structure of fishery community in the offshore waters of southern Zhejiang Province of China: Insights from stable isotope analysis

CCPortal

DOI	10.1016/j.ecolind.2024.111672
	Unveiling seasonal changes in trophic structure of fishery community in the offshore waters of southern Zhejiang Province of China: Insights from stable isotope analysis
	Wei, Xiujin; Gao, Chunxia; Liu, Yiwen; Tian, Siquan; Kindong, Richard; Wang, Yin
发表日期	2024
ISSN	1470-160X
EISSN	1872-7034
起始页码	159
卷号	159
英文摘要	Understanding an ecosystem's trophic structure is essential for determining the dynamic interplay between natural and human-induced changes. However, limited knowledge of local food web structures, especially the seasonal trophic structure, hinders our understanding of ecosystem' stability and dynamics. The offshore waters of southern Zhejiang Province of China are amongst the important fishing waters in China, which are undergoing multiple stressors, such as over-exploitation, global warming, and acidification. This study investigated the seasonal changes in the trophic structure and trophic spectrum of fishery community in this region based on delta 13C-delta 15N isotope metrics and identified the key types of organisms determining the stability of food webs in different seasons. The results showed that the trophic structure in summer significantly diverged from those of other seasons, with benthivorous fish predominating, higher trophic positions, and feeding specialization of predators. The lowest trophic level and length of the trophic spectrum were observed in spring and were is attribute to the generally smaller size of the species in the community. The winter community showed maximal resource occupancy but the lowest trophic redundancy due to specialized top predators, suggesting higher vulnerability to disturbance. Based on the bi-plot of delta 13C-delta 15N isotope values, it can be found that Planktivorous and benthivorous fish occupy a key position in the food web structure. Seasonal fluctuations in the trophic structure of fishery community illustrated the diversity and complexity of food webs, and our study provided insights for characterizing marine ecological processes, which were conducive to the restoration of offshore fisheries and the development of management strategies.
英文关键词	Community -wide metrics; Ecological niche; Seasonal variation; Stable isotopes; The offshore waters of southern Zhejiang; Province of China; Trophic structure
语种	英语
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
WOS类目	Biodiversity Conservation ; Environmental Sciences
WOS记录号	WOS:001178654200001
来源期刊	ECOLOGICAL INDICATORS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/302267
作者单位	Shanghai Ocean University; National Engineering Research Center for Oceanic Fisheries; Ocean University of China
推荐引用方式 GB/T 7714	Wei, Xiujin,Gao, Chunxia,Liu, Yiwen,et al. Unveiling seasonal changes in trophic structure of fishery community in the offshore waters of southern Zhejiang Province of China: Insights from stable isotope analysis[J],2024,159.
APA	Wei, Xiujin,Gao, Chunxia,Liu, Yiwen,Tian, Siquan,Kindong, Richard,&Wang, Yin.(2024).Unveiling seasonal changes in trophic structure of fishery community in the offshore waters of southern Zhejiang Province of China: Insights from stable isotope analysis.ECOLOGICAL INDICATORS,159.
MLA	Wei, Xiujin,et al."Unveiling seasonal changes in trophic structure of fishery community in the offshore waters of southern Zhejiang Province of China: Insights from stable isotope analysis".ECOLOGICAL INDICATORS 159(2024).