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强壮硬毛藻(Chaetomorpha valida)的温度性质及其在中国海藻区系中的扩散潜力
邓蕴彦1,2, 汤晓荣3, 黄冰心4, 丁兰平1
1.中国科学院海洋研究所;2.中国科学院研究生院;3.中国海洋大学海洋生命学院;4.汕头大学
摘要:
采用显微观察和单藻培养的方法, 对山东荣成沿海水域大量繁生的一种大型绿藻进行了研究。经过形态分类鉴定, 确认其为强壮硬毛藻 Chaetomorpha valida。通过室内单藻培养, 对其孢子体和配子体生长、生殖的温度范围进行了研究。结果表明, 强壮硬毛藻样品生长、生殖的适温范围为 21—29℃。根据此适温范围, 该物种的温度性质应该归划为暖水性。结合国内外已有的相关报道分析, 认为强壮硬毛藻在中国海域有沿海岸向南扩散的可能性。
关键词:  强壮硬毛藻, 温度性质, 扩散
DOI：10.11693/hyhz201103010010
分类号:
基金项目:国家自然科学基金面上项目资助, 31070185 号, 40876081 号; 国家自然科学基金重大项目资助, 30499340 号; 中国科学院知识创新项目资助, KSCX2-YW-Z-018 号
THE TEMPERATURE CHARACTER OF MARINE GREEN ALGA, CHAETOMORPHA VALIDA, WITH ANALYSIS OF ITS DIFFUSION POTENTIAL IN MARINE ALGAL FLORA OF CHINA
DENG Yun-Yan1,2, TANG Xiao-Rong3, HUANG Bing-Xin4, DING Lan-Ping1
1.Institute of Oceanology, Chinese Academy of Sciences;2.Graduate School, Chinese Academy of Sciences;3.College of Marine Life Sciences, Ocean University of China;4.Shantou University
Abstract:
A marine green alga that formed large biomass at the coast of Rongcheng city, Shandong province was studied. This species was identified as Chaetomorpha valida (Hooker et Harvey) Kützing (Cladophoraceae, Chlorophyta) by morphological features. Based on unialgal culture, we found that the suitable temperature range lied in 21—29℃, thus this alga can be categorized as a warm-water species. This species may have a potential to expand southward along the Chinese coast.
Key words:  Chaetomorpha valida, Temperature characteristics, Diffusion
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