胡凡光，郭萍萍，吴志宏，王志刚，孙福新，李美真
（山东省海水养殖研究所，山东 青岛 266002）

摘要：为研究青岛马尾藻池塘栽培生长情况，根据池塘水环境因子（水温、盐度和pH）及青岛马尾藻的生长特性，设置了青岛马尾藻单株、两株夹苗生长对比试验和青岛马尾藻中间截断夹苗栽培试验。结果显示：池塘水温在9~18℃时，青岛马尾藻生长最快；在18~21℃时，生长缓慢；21℃以上时逐渐停止生长并出现腐烂脱落。两株夹苗模式在整个试验阶段比单株夹苗模式生长情况略好，其藻体平均体长和平均湿重相比均略大（P<0.05）。截断试验显示，藻体上半部分体长生长良好，藻体下半部分几乎未增长，但却萌发出大量侧枝。研究表明：青岛马尾藻生长受水温影响较大，夹苗密度相应大一些有利于促进生长，同时印证了马尾藻是属于顶端生长的藻体，其分生组织位于藻体顶端的生理特性。

关键词：青岛马尾藻；生物量；湿重

Ecological observation on Sargassum qingdaoense cultivated in the ponds
HU Fan-guang, GUO Ping-ping, WU Zhi-hong, WANG Zhi-gang, SUN Fu-xin, LI Mei-zhen﹡
（Mariculture Institute of Shandong Province, Qingdao, 266002 , china）

Abstract: The paper made research and analysis on the growth of Sargassum qingdaoense which were cultivated in pond in Qingdao from April, 2010 to June, 2011. According to pond water environment(such as temperature, salinity and PH) and growing characteristics of S. qingdaoense, the author made experimental comparision of monoclonal and bi-folders growth of S. qingdaoense, and made cultivation test of middle-truncated folder S. qingdaoense seedlings. The experiment shows: (1) S. qingdaoense grows fastest when pond water termperature at 9 ~ 18 ℃, slowly at 18~21℃, when water temperature is higher than 21℃, S. qingdaoense stop growing and begin rotting off. S. qingdaoense which were cultivated by bi-folders model grew better than mono-folders model, the former average length and wet weight were slightly larger the latter（P<0.05）; (2) middle-truncated folder S. qingdaoense seedlings experiment shows, the upper half grows well, the lower half grew little, but the lower half front germinated many lateral branches. The result shows: the growth of S. qingdaoense is influenced by water temperature; high-density folders can promote growth low-density folders, and simultaneously confirms the physiological properties that Sargassum is top-growing algae, whose meristematic tissue locates on the top of algae body.

Key words: Sargassum qingdaoense; biomass; wet weight

基金项目：海洋公益性行业科研专项经费项目(200905020、200905019、201105008-2、201305005)，山东省农业重大应用技术创新(2012.6-2014.6）
作者简介：胡凡光(1977—)，男，工程师，硕士，研究方向：大型海藻养殖与应用。E-mail: hfg_2006@sohu.com。
通讯作者：李美真(1960—)，女，研究员，本科，研究方向：藻类研究。E-mail：li-meizhen@163.com。

（来源：《渔业现代化》2012,40(1):32-35，39）