首页 | 期刊介绍 | 编委会 | 道德声明 | 投稿指南 | 常用下载 | 过刊浏览 | 期刊订阅 | In English
引用本文:
【打印本页】   【HTML】   【下载PDF全文】   查看/发表评论  下载PDF阅读器  关闭
←前一篇|后一篇→ 过刊浏览    高级检索
本文已被:浏览 44次   下载 58 本文二维码信息
码上扫一扫!
分享到: 微信 更多
苏北浅滩绿藻从定生到漂浮过程中的组成及其生长特性
韩笑天1,2,3,4, 赵婷1, 苗辉2,3, 孙斌5, 赵卫红2,3,4, 颜天2,3,4, 于仁成2,3,4
1.中国海洋大学 青岛 266100;2.中国科学院海洋研究所 青岛 266071;3.青岛海洋科学与技术试点国家实验室 海洋生态与环境科学功能实验室 青岛 266237;4.中国科学院海洋大科学研究中心 青岛 266071;5.天津大学 青岛海洋工程研究院 青岛 266200
摘要:
本文研究了苏北浅滩紫菜养殖筏架上附生的定生绿藻及海面上的漂浮绿藻在3月底和5月初的群落组成及其演替变化。分别通过设置滩涂围隔实验和船基围隔实验,研究附着态和漂浮态绿藻和浒苔(Ulva prolifera)的相对生长率,分析浒苔在苏北浅滩的实际生长状况以及滩涂潮水涨落对于浒苔成为优势种的影响,以期了解其暴发绿潮的原因。结果显示3月底定生绿藻群落主要以曲浒苔(U.flexuosa)和盘苔(Blidingia minima)为主要优势种,未见浒苔出现。5月初定生绿藻群落中主要以盘苔和扁浒苔(U.compressa)为优势种,其中浒苔只占15%。而在5月初海面漂浮的绿藻中,浒苔成为主要优势种,比例达到76%。在设置的船基围隔和滩涂围隔的生长实验中,均以5月初定生绿藻为初始生物量,其中附着态浒苔在转变为漂浮态浒苔过程中都获得了较高生长率,其平均相对生长率分别为53.0和64.2%/d,而漂浮态浒苔在船基围隔中获得相对生长率则较低,为19.1%/d。实验结果表明,定生绿藻中定生浒苔更快适应漂浮状态,可以通过高生长率迅速成为漂浮绿藻中的绝对优势种,为其暴发绿潮奠定生物量基础。
关键词:  苏北浅滩  绿藻  浒苔(Ulva prolifera)  相对生长率  围隔
DOI:10.11693/hyhz20181000258
分类号:Q14
基金项目:青岛海洋科学与技术国家实验室鳌山科技创新计划项目,2016ASKJ02-01号;中国科学院战略性先导科技专项子课题,XDA1201020304号。
GROWTH CHARACTERISTICS OF GREEN ALGAE FROM ATTACHED TO FLOATED GROWTH PROCESS IN THE SUBEI SHOAL
HAN Xiao-Tian1,2,3,4, ZHAO Ting1, MIAO Hui2,3, SUN Bin5, ZHAO Wei-Hong2,3,4, YAN Tian2,3,4, YU REN-Cheng2,3,4
1.Ocean University of China, Qingdao 266100, China;2.Institute of Oceanology, Chinese Academy of Science, Qingdao 266071, China;3.Laboratory for Marine Ecology and Environmental Science, Pilot National Laboratory for Marine Science and Technology(Qingdao), Qingdao 266237, China;4.Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China;5.Qingdao Institute for Ocean Engineering of Tianjin University, Qingdao 266200, China
Abstract:
We studied the community structure of attached green algae and floated green algae in late March and early May. The relative growth rate (RGR) of green algae and Ulva prolifera was conducted in the experiments of ship-based mesocosm and shoal-based mesocosm. The results show that the main dominant species of the green algae community in late March were U. flexuosa and Blidingia minima but no U. prolifera occurred. The dominant species in early May were Blidingia minima and U. compressa. U. prolifera accounted for 15% of the total biomass of attached green algae in late May, but increased to 76.0% after they floated onto the sea surface. The results of ship-based mesocosm and shoal-based mosocosm experiments showed that the relative growth rate of attached U. prolifera reached the highest RGR value of 64.2%/d. The RGR of the free-floating U. prolifera was 19.1%/d lower than the attached U. prolifera. Therefore, the fast floating ability and high growth ability of U. prolifera were the main reasons for blooming into the green tides.
Key words:  Subei shoal  green algae  Ulva Prolifera  relative growth rate  mesocosm
版权所有 《海洋与湖沼》编辑部 Copyright©2008 All Rights Reserved
主管单位:中国科学技术协会 主办单位:中国海洋湖沼学会 中国科学院海洋研究所
地址:青岛市南海路七号  邮编:266071  电话:0532-82898753  E-mail:ols@qdio.ac.cn
技术支持:北京勤云科技发展有限公司