东、黄海典型站位底栖动物粒径谱研究

对东、黄海典型站位底栖动物粒径谱进行了首次研究 ,得出 Sheldon粒径谱呈典型的双峰模式 ,两个峰形分别对应着大型底栖动物和小型底栖动物的生物量分布。小型底栖动物峰值出现在粒级 6～ 10 ,大型底栖动物峰值在 13～ 14。两峰值之间的波谷位置在粒级 10～ 11,是大型、小型底栖动物的过渡带 ,生物量主要由大型动物的幼龄个体构成。E3站大型动物幼龄个体大量出现 ,使该站的过渡粒级上出现峰值 ,粒径谱呈单峰形。同时构建了正态化粒径谱 ,在此基础上对不同生态系统的比较进行了初步尝试。

Research on biomass size spectra of macro- and meiofuana at typical stations in the East China Sea and Yellow Sea

Traditional taxon-based approaches to the study of marine benthic assemblages are time consuming activities and require considerable expertise. The biomass size spectrum, which considers only the size of organisms, is a useful and practical alternative for ecologists. It was introduced by Sheldon et al. in 1972 to describe features of marine pelagic ecosystems. Schwinghamer was the first to extend this idea to benthic assemblages. He found a conservative pattern in size-class spectra with distinct maxima wi...