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荣成俚岛人工鱼礁区大型底栖藻类群落及其与环境因子的关系
引用本文:张磊,张秀梅,吴忠鑫,张沛东.荣成俚岛人工鱼礁区大型底栖藻类群落及其与环境因子的关系[J].中国水产科学,2012,19(1):116-125.
作者姓名:张磊  张秀梅  吴忠鑫  张沛东
作者单位:中国海洋大学水产学院,山东青岛,266003
基金项目:海洋公益性行业科研专项经费项目(200805069)
摘    要:2009年8月2010年8月间,每隔2个月对荣成俚岛人工鱼礁区投放3年后的2种人工鱼礁及自然礁石上附着的大型藻类进行潜水采样调查,分析藻类群落演替规律及其与环境因子的关系。结果表明,采集到附着藻类共3门13种,其中红藻门(Rhodophyta)藻类的种类数最多(6种),褐藻门(Phaeophyta)藻类的平均生物量最大(92.724 g/m2)。人工鱼礁上附着的藻类群落渐趋成熟;夏秋季藻类种类数和生物量均高于春冬季。聚类分析和去趋势对应分析(DCA)表明,石块礁和自然礁石上藻类群落结构相似度(83.1%)较高,其生物量及群落多样性指数均高于混凝土礁体。主成分分析(PCA)和冗余分析(RDA)结果表明,水温是影响藻类群落变化的最主要因子,对藻类群落变化的解释量达到47.6%。影响自然礁石上藻类群落变化的次要因子为N、P营养盐,而影响石块礁和混凝土礁体上藻类群落变化的次要因子为pH和溶解氧。

关 键 词:大型底栖藻类群落  人工鱼礁  去趋势对应分析  主成分分析  冗余分析
修稿时间:2012/2/2 0:00:00

Effect of environment on benthic macro-algal communities of artificial reefs in Lidao, Rongcheng
ZHANG Lei,ZHANG Xiumei,WU Zhongxin,ZHANG Peidong.Effect of environment on benthic macro-algal communities of artificial reefs in Lidao, Rongcheng[J].Journal of Fishery Sciences of China,2012,19(1):116-125.
Authors:ZHANG Lei  ZHANG Xiumei  WU Zhongxin  ZHANG Peidong
Institution:College of Fisheries,Ocean University of China,Qingdao 266003,China
Abstract:We evaluated the relationship between environmental indices and succession in the algal communities of artificial reefs near Lidao,Rongcheng.We documented species diversity and biomass on a quarterly basis between August 2009 and August 2010,about 3 years after the reefs were installed.We documented thirteen algal species belonging to three divisions.Of these,six species belonging to Rhodophyta dominated the flora numerically.Conversely,Phaeophyta had the highest biomass density(92.724 g/m2).The algal community had reached matur-ity after three years of development.The number of species and biomass were higher in summer and autumn than in spring and winter.Both cluster analysis and detrending correspondence analysis revealed 83.1% similarity be-tween algal communities in rock reefs and natural reefs.Both the biomass and diversity index were higher in algal communities in rock and natural reefs than in concrete reefs.PCA and DCA analysis suggested that temperature was the major environmental factor affecting the algal communities,explaining 47.6% of the variation.Nitrogen and phosphorus constituted secondary factors in the natural reef area whereas pH and dissolved oxygen(DO) lev-els were secondary in artificial reef areas.
Keywords:benthic macro-algal community  artificial reef  DCA  PCA  RDA
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