胶州湾辛岛潮间带大型底栖动物生态学调查

The ecology of the macrobenthic community in the intertidal zone of Xindao, Jiaozhou Bay

利用2003年8月至2004年5月(夏、秋、冬、春季)4个季度月在胶州湾辛岛潮间带的3个不同潮区的调查资料进行分析。结果共获得大型底栖动物43种,其中低潮区出现27种,中潮区和高潮区20种和19种,有6种属于3个潮区共有种。大型底栖动物总平均栖息密度为102.5个/m2,5月最高,为144.67个/m2,2月最低,为52.66个/m2;总平均生物量为60.01g/m2,11月最高,为102.99g/m2,2月最低,仅为11.87g/m2。本区大型底栖动物的栖息密度和生物量有明显的季节变化。

Three sampling sites within intertidal zones of Xindao, Jiaozhou Bay, Shandong Peninsula, were set up to explore the community of macrobenthos during August 2003 to May 2004. Fourty-three species were found in the intertidal zones, of which 27 distributed in low tidal zone （X3）, 20 in medium tidal zone （X2） and 19 in high tidal zone （X1）, and only 6 species are common in the three tidal zones. The total average density of benthos is 102.5 ind./m^2, the highest in May, 144.67 ind./m^2, the lowest in February, 52.66 ind./m^2 ; while the total average biomass is 60.01g/m^2, the highest in November, 102.99 g/m^2, the lowest in February, 11.87 g/m^2 . Meanwhile, the density and biomass are evidently different within four seasons.