广东珠海唐家湾贝克喜盐草海草床分布特征及保护建议OA

The purpose of this study is to identify the distribution status,degradation trend and main threat factors of seagrass bed of Halophila beccarii in Tangjiawan,Zhuhai,Guangdong Province,and to propose sci-entific and feasible conservation countermeasures.Through seven field surveys conducted from August 2024 to October 2025,the distribution area,coverage and human disturbance of seagrass in the study area were sys-tematically recorded and discussed.The survey found that as of October 2025,the total distribution area of seagrass in the study area was only about 0.051 hm2,which was more than 99%lower than the historical maximum(7.6 hm2,2008).The average coverage was 7.29%,showing characteristics of high fragmentation and low coverage.Intensive tidal flat harvesting and fishery activities,artificial beach construction,and ex-treme weather are the key driving factors for its continuous degradation.It is recommended to adopt compre-hensive measures including establishing protected areas,strengthening long-term monitoring,promoting pub-lic education and conducting ecological restoration,so as to curb the further degradation of seagrass beds and prevent their functional extinction in this region.