Evaluation of transplant restoration effect on seagrass in Xincun Port,Hainan,and analysis of affecting factors
ZHANG Jian
CHEN Shiquan
CAI Zefu
WANG Daoru
YIN Lei
GENG Xiaoxiao
WU Zhongjie
Abstract：Continuous degradation of coastal seagrass bed in Hainan Island needs to be solved urgently.We used the iron frame fixation method with a constant distance to transplant Thalassia hemprichii and Enhalus acoroides in Xincun Port,Hainan.The repair scale was 100 transplantation units(40 T.hemprichii and 60 E.acoroides)within an area of about 1500 m2.The survival rate decreased signifi-cantly after 8 months to the the lowest in 14 months(51.25％)but increased after 16 months,reaching 67.81％after 24 months.The growth of E.acoroides was stable,and the overall trend fluctuated slightly.The average survival rate and coverage of E.acoroides were higher than those of T.hemp-richii,but the average germination rate of E.acoroides was significantly lower than that of T.hemp-richii.The repair effect of seagrass transplantation in Xincun Port was mainly affected by weak water exchange and macroalgal outbreaks.To ensure the restoration effect,long-term monitoring of seagrass growth should be carried out,warning signs should be set up,local fishermen should be hired to take care of the transplanted seagrass,and fence protection should be carried out.Our findings can provide basic data and theory for future seagrass restoration in other lagoon areas.
Keywords：Xincun PortThalassia hem prichiiEnhalus acoroidestransplantationaffecting factor
Publication Date：2025-08-30
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：9( 166-174 )