海洋科学2025，Vol.49Issue(4)：76-83,8.DOI:10.11759/hykx20241225002
山东青岛古镇口湾海草床分布现状及生态特征
Distribution status and ecological characteristics of seagrass beds in the Guzhenkou Bay,Qingdao,Shandong Province
摘要
Abstract
Seagrasses are extensively distributed across tropical and temperate coastal waters,where they play a crucial role in providing ecological services.However,in recent years,seagrass resources in China have severely declined,necessitating conservation and restoration efforts to curb seagrass degradation.Preliminary surveys in Guzhenkou Bay,Qingdao,identified seagrass patches exhibiting signs of degradation,resulting in the initiation of seagrass restoration efforts.This study employed sonar detection technology along with station-based investigations to assess the distribution of restored seagrass beds,along with their biological characteristics and associated envi-ronmental factors.The findings indicated that the seagrass bed in Guzhenkou Bay consists of a single species,Zos-tera marina L.,with the current restored area spanning 20.42 hm2,surrounding a peripheral region measuring 55 hm2.The growth condition of Z.marina within the seagrass bed was favorable,as indicated by data collected in November 2023:vegetation cover of(67.22±22.63)%,shoot density of(599.59±217.94)shoots m-2,shoot height of(32.36±7.28)cm,and biomass of(204.27±89.64)g DW m-2.The average carbon and nitrogen content in seagrass tissues was measured at(33.02±2.85)%and(2.11±0.89)%,respectively.During the investigation,sig-nificant anthropogenic disturbances were observed around the seagrass bed.Additionally,due to its lower latitude,the seagrass bed is more susceptible to the ongoing effects of global warming compared with other Z.marina meadows in China.To prevent further degradation of the seagrass bed,it is recommended to implement effective protection and scientific management measures,including establishing seagrass bed protection zones,enhancing restoration efforts,and increasing public awareness.关键词
鳗草/单波束声呐/山东半岛/物种分布/水深Key words
Zostera marina/single beam sonar/Shandong Peninsula/species distribution/water depth分类
生物学引用本文复制引用
刘明杰,董家锁,周兴,张晓梅,周毅,徐少春,岳世栋,张乃星,王岚,蒲思潮,鲍萌萌,王惠,徐鑫..山东青岛古镇口湾海草床分布现状及生态特征[J].海洋科学,2025,49(4):76-83,8.基金项目
国家重点研发计划项目(2024YFF1306803) （2024YFF1306803）
国家自然科学基金项目(32270405 （）
42206142) National Key Research and Development Program,No.2024YFF1306803 （）
National Natural Science Foundation of China,Nos.32270405,42206142) （）
