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中国南麂列岛铜藻Sargassum horneri实地生态学的初步研究
引用本文:孙建璋,陈万东,庄定根,郑海羽,林力,逄少军.中国南麂列岛铜藻Sargassum horneri实地生态学的初步研究[J].南方水产,2008,4(3):58-63.
作者姓名:孙建璋  陈万东  庄定根  郑海羽  林力  逄少军
作者单位:1. 浙江省平阳县南麂岛开发有限公司,浙江,平阳,325401
2. 南麂列岛国家级海洋自然保护区管理局,浙江,平阳,325401
3. 中国科学院海洋研究所,山东,青岛,266071
基金项目:科技部农业科技成果转化基金 , 国家自然科学基金 , 国家高技术研究发展计划(863计划) , 中国科学院知识创新工程项目
摘    要:铜藻Sargassum horneri藻株高大,枝叶繁茂,是中国暖温带海域浅海区海藻场的主要连片大型褐藻物种。文章报道了2006年3月-2007年7月开展的南麂列岛铜藻海藻场实地调查结果。结果表明,铜藻繁茂生长在潮流通畅、风浪较为平静海湾的大干潮线以下至-4m浅海岩礁上,漂浮海面形成海藻场;从调查的种群情况来看,野生种群主体以有性生殖长成的1年生藻株为主,残枝再生的2年生藻株只占5%;铜藻的生长和繁殖适温为11~16℃;繁殖盛期水温16~20℃。根据观察,铜藻海藻场近年以来一直在缩小,个别地区已经成片消失。初步提出了“铜藻以有性生殖为主,残枝营养繁殖为辅,共同维持种群繁衍”的推论。恢复与重建铜藻海藻场需要详细了解铜藻的繁殖和种群生态变迁规律,该研究为实现此目的提供了理论帮助。

关 键 词:南麂列岛  铜藻  生态  海藻场
文章编号:1673-2227-(2008)03-0058-06
修稿时间:2007年10月21

In situ ecological studies of the subtidal brown alga Sargasssum horned at Nanji Island of China
SUN Jianzhang,CHEN Wandong,ZHUANG Dinggen,ZHENG Haiyu,LIN Li,PANG Shaojun.In situ ecological studies of the subtidal brown alga Sargasssum horned at Nanji Island of China[J].South China Fisheries Science,2008,4(3):58-63.
Authors:SUN Jianzhang  CHEN Wandong  ZHUANG Dinggen  ZHENG Haiyu  LIN Li  PANG Shaojun
Institution:SUN Jianzhang, CHEN Wandong, ZHUANG Dinggen , ZHENG Haiyu, LIN Li, PANG Shaojun ( 1. Zhejiang Pingyang County, Nanji Island Development Co. Ltd. , Pingyang 325401, China; 2. Administration Bureau of the National Marine Conservation Zone of Nanji Island, Pingyang 325401, China; 3. The Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China)
Abstract:Sargassum horneri is one of the main components in the subtidal seaweed flora along the Chinese warmer water coast. With the changes of global climate and the increases of human activities, the once abundant algal biomass of S. horned along the coast of Nanji Island (27°27′N, 121°05′E) has been reduced in recent years. In order to understand this changes, in situ observation of field individual plants were performed during 2006 - 2007 at four field sites distributed at intertidal zones. It was found that, ( 1 ) field population was mainly composed of the annual sporophytes derived from zygote via sexual reproduction, while the biannual plant was only about 5 % of the total population; (2) the optimal temperature for growth and reproduction was 11 -16℃. Sexual reproduction peaked at the temperatures of 16 - 20℃. Sporophytes of S. horneri are tolerant of a wide spectrum of irradiance, and are thus one of the ideal candidates in reconstruction of artificial seaweed beds.
Keywords:Nanji Island  Sargassum horneri  ecology  artificial seaweed beds
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