烟台海域基岩潮间带底栖红藻资源的空间分布格局

所调查的5月份烟台海域6基岩潮间带的红藻群落由21种红藻组成,养马岛的种类组成最为丰富(11种),金沟寨最为贫乏,仅有3种.潮间带红藻总生产量的排序为养马岛>月亮湾>芝罘岛>金沟寨>金沟寨砾石滩>龙须岛.烟台海域基岩潮间带红藻群落的优势种为仙菜和江蓠.红藻群落的物种丰富度依次为养马岛>芝罘岛>龙须岛>月亮湾>金沟寨>金沟寨砾石滩;物种多样性指数以养马岛为最高,金沟寨砾石滩最低,依次为养马岛>月亮湾>龙须岛>金沟寨>芝罘岛>金沟寨砾石滩;物种分布的均匀度指数依次为月亮湾>龙须岛>养马岛>金沟寨>芝罘岛>金沟寨砾石滩.

The Spatial Distribution Pattern of Benthic Rhodophyta in Yantai Intertidal Zones of Yellow Sea

The ecological investigation is carried out during May in 6 lithofacies intertidal zones of Yantai littoral regions. 21 species of red alga are found in the investigated regions, there exists the most species at Yangma Islet(11 species), while gravel intertidal zone at Jingouzhai the poorest, only 3 species. The total amount of primary production of red alga among the 6 examined stations ranks as following: Yangma Islet>Moon Bay>Zhifu Islet>Jingouzhai>Jingouzhai Gravel>Dragon whisker Islet. It is found that Ceramium spp and Gracilaria verrucosa become the chief dominant species in the red algal community during May. The result suggests that the species richness index ranks as following among 6 stations: Yangma Islet>Zhifu Islet>Drogan whisker Islet>Moon Bay>Jingouzhai> Jingouzhai Gravel, and Yangma Islet possessed the highest species diversity index, while Jingouzhai the lowest, the order of species diversity index among 6 stations is Yangma Islet>Moon Bay>Drogan whisker Islet>Jingouzhai >Zhifu Islet>Jingouzhai Gravel, the order of species evenness index is: Moon Bay>Drogan whisker Islet>Yangma Islet>Jingouzhai>Zhifu Islet >Jingouzhai Gravel.