| 摘要: |
| 为了探索红树林区污损动物的附着季节和群落发展规律,于1999年12月至2001年1月在广西英罗港红树林保护区进行污损动物挂板实验。试板悬挂在向海林带紧靠外缘的潮间带光滩上,下层离滩面10cm,上层离滩面110cm,分为月板、季板和年板;每类试板重复4块。同时调查周边1~17龄桐花树(Aegiceras corniculatum)上污损动物群落,每龄选取5株,测定与底层试板挂放高度相当的0~20cm树层上污损动物的种群密度和生物量。结果在桐花树和试板上共发现27种污损动物,优势种为潮间藤壶(Balanus.littoralis)、白条地藤壶(Euraphia withersi)、黑荞麦蛤(Xenostrobus atratus)和团聚牡蛎(Ostrea glomerata)。全年3~12月有污损动物附着,春秋季各有1个附着高峰。附着盛期为10月和11月。潮间藤壶的附着期为3~12月,白条地藤壶的为9~12月。附着密度以秋季板最大,达25493个/米2;生物量以春季最大,达2921.13g/m2。年板的最大密度和生物量达15063个/米2和8663.26g/m2。桐花树底层多年污损动物群落主要优势种从潮间藤壶到白条地藤壶到黑荞麦蛤变化,密度和生物量在2年后减少并在较低水平波动。 |
| 关键词: 红树林 污损动物 群落生态 挂板实验 |
| DOI： |
| 投稿时间：2001-11-19修订日期：2002-01-31 |
| 基金项目:广西科学院科技基金项目(桂科院研9907)和广西"十百千"人才工程专项基金[桂人函(1998)354号]资助。 |
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| Research on the Ecology of the Fouling Fauna Communities in Mangrove |
|
He Binyuan
|
| (Guangxi Mangrove Research Center, 92 East Changqinglu, Beihai, Guangxi, 536007, China) |
| Abstract: |
| To probe into the attachment period and development of the fouling fauna communities in mangrove area, the panel experiment was conducted in Yingluo Bay Mangrove Reservoir of Guangxi from Dec. 1999 to Jan 2001. The panels were settled in the bare area in the tidal zone outside the seaward forest belt.The bottom and top panels were 10 cm and 110 cm away from beach surface respectively. The panels include monthly, seasonal and yearly ones, with four repetitions for each kind of panels. The density and biomass of the fouling fauna in 0 to 20 cm layer of 1 to 17 years old Aegiceras corniculatum trees around the panels were investigated. Five trees of each age were sampled. Twenty-seven species of the fouling fauna were found on the mangrove plants and experiment panels, in which Balanus littoralis, Euraphia withersi, Xenostrobus atratus and Ostrea glomerata were dominant. The fouling fauna were able to attach the panels from Mar. to Dec.,which had a top attachment in spring and autumn respectively. The favor time of attachment was Oct. and Nov.,and Mar. to Dec. for B.littoralis,and September to December for E. withersi The highest density was found on autumn panels,25493 No./m2,and the highest biomass on spring panels, 2921.13 g/m2. The highest density and biomass on the yearly panels reached 15063 No./m2 and 8663.26 g/m2 respectively. The major dominant species of the perennial fouling fauna communities changed from B.littoralis to E.withersi to X.atratus in the bottom layer of mangrove trees, and the densities and biomasses decreased in two years, and fluctuated on a lower level. |
| Key words: mangrove fouling fauna community ecology panel experiment |
