生态学报2025，Vol.45Issue(9)：4312-4321,10.DOI:10.20103/j.stxb.202302120238
水动力作用对粘附剂包封铜藻受精卵附着的影响
Effect of hydrodynamic action on adhesion of Sargassum horneri zygotes encapsulated by adhesive
摘要
Abstract
Owing to the accumulation of sediment in shallow seas caused by human activities,the coverage area of copper algae fields has been progressively diminishing,resulting in a continuous reduction of benthic habitats.To mitigate this issue,it is imperative to restore the degraded copper algae fields and establish suitable habitats.To address the issues of inadequate adhesion function and low survival rates of Sargassum horneri zygotes..Based on the adhesive function of zygotes of macroalgae,in order to improve the efficiency of zygotes adhesion and transplantation,the hydrodynamic action impact experiments were carried out indoors and in intertidal zone.The adhesion ability of Sargassum horneri zygotes encapsulated by sodium alginate,sodium alginate with 3％ CaCl2 solution and Hyperhyperbolic Polymer Aradhesuve(HBPA)was studied.The result showed that:(1)Indoors zone:under the influence of hydrodynamic action(EI:3.9),sodium alginate adhesive could adhere for 5 days on average,and the average adhesion time increased for 2 days after spraying 3％ CaCl2 solution,and theattachment density of zygotes was 14ind./cm2 and 24ind./cm2 respectively.HBPA can adhere for more than 7 days in hydrodynamic action(EI:8.4).The highes attachment density of zygotes is 14ind./cm2.(2)Intertidal zone:HBPA showed strong adhesion ability in three sites of intertidal zone S1(EI:6.6),S2(EI:5.0)and S3(EI:4.0)to encapsulate zygote,and the attachment density of zygotes reached 1、14 and 21ind./100cm2 respectively,which were higher than those groups of sodium alginate and the sodium alginate sprayed with3％ CaCl2 solution.Through indoor and outdoor hydrodynamic action experiments,it is found that the resistance of sodium alginate and sodium alginate additive fixed by spraying 3％ CaCl2 solution are weaker than that of HBPA,so it cannot be applied under the co-nditions of strong current and high wave energy,but it is the most convenient,pollution-free,low-cost and easy-to-obtain materials as artificial adhesives.HBPA has high viscosity,strong adhesion,low dissolution rate and go-od intertidal transplantation effect,and is expected to become a new underwater transplantation material.The rese-arch results will provide technical support for the ecological restoration and protection of largescale seaweed field.The findings of this study will facilitate the development and application of more efficient artificial adhesion agents and transplantation techniques,thereby promoting cost-effective and efficient methods for the ecological restoration of algal fields.This will aid in restoring the damaged algal ecosystems along the coast of Zhejiang and provide essential technical support for ecological restoration projects and marine carbon sequestration efforts in coastal islands and reefs throughout China.关键词
大型海藻/受精卵/水动力作用/粘附材料/人工移植Key words
macroalgae/zygotes/hydrodynamic action/adhesive material/artificial transplantation引用本文复制引用
苗航,王惠杰,杨起帆,朱伟栋,毕远新..水动力作用对粘附剂包封铜藻受精卵附着的影响[J].生态学报,2025,45(9):4312-4321,10.基金项目
浙江省科技厅基础公益项目(LTGS24C030002) （LTGS24C030002）
浙江省科技厅重点研发项目(2023C03120) （2023C03120）
舟山市科技计划项目(2022C31054) （2022C31054）
