福建红树林区大型藻类的生态学研究

主要研究中国福建省红树林区大型藻类分布、优势种的生物量和林冠下藻种的垂直分布特点。结果表明:福建红树林区的大型藻类有24属42种,其中蓝藻8属15种、红藻3属7种、绿藻13属20种。优势种中鹧鸪菜(Caloglossa leprieurii)和节附链藻(Catenella impudica)的生物量在6月分别为2.22～8.44g/m~2 DW和2.69g/m~2 DW,在12月分别为0.15～0.20g/m~2 DW和2.12g/m~2 DW。红树林中树干上附着生长的大型藻类的垂直分布自下而上可分成6个带:1.无隔藻(Vaucheria sp.)带;2、节附链藻带;3.侧枝鹧鸪菜-混合卷枝藻(Caloglossa ogasawaraensis-Bostrychia mixta)带;4.鹧鸪菜带;5.硬毛藻-岸生根枝藻(Chaetomorpha macrotona-Rhizoclonium riparium)带;6.绿球藻(Chlorococcum sp.)带。

ECOLOGICAL CHARACTERISTICS OF MACROALGAE IN MANGROVE FORESTS IN FUJIAN,CHINA

The flora and distribution of macroalgae as well as the biomass of its two dominant species were studied in mangrove forests in Fujian Province, China.There were totally 42 species belonging to 24 genera of macroalgae, in which 15 species/8 genera belonged to Cyanophyta, 7/3 to Rhodophyta, and 20/13 to Chlorophyta. The biomass of the dominant species Caloglossa leprieurii and Catenella impudica were 2.22 to 8.44 g/m2 DW and 2.69 g/m2 DW in June,and 0.15 to 0.20 g/m2 DW and 2. 12 g/m2 DW in December, respectively. On the trunk surface of the mangrove plants,macroalgae appeared vertically to be distributed from lower upwards into six belts, namely Vaucheria sp. belt, Catenella impudica belt, Caloglossa ogasawaraensis-Bostrychia, ndxta belt, Calo-giossa leprieurii belt, Chaetomorpha macrotona-Rhizoclonium riparium belt, and Chlorococcum sp. belt.