Abundance, biomass and secondary production of macrobenthos in the Jiaozhou Bay, China
胶州湾大型底栖动物的丰度、生物量和生产量研究

The ecological study of macrobenthos was conducted at four typical sampling stations selected in the northern muddy bottom area of the Jiaozhou Bay, estuary of Dagu River, culturing and nearby areas in Huangdao in Mar., Jun., Aug. and Dec., 2002. Abundance and biomass of macrobenthos were investigated by quantitative study. Totally, 138 species were identified. The total mean abundance, biomass and secondary production were 1 719 inds./m2, 27 g/m2 and 2.24 g/(m2·a), respectively. The estimated total annual secondary production of macrobenthos was 28 000 t in the Jiaozhou Bay. Compared with the studies on macrofauna in the Bohai Sea and southern Yellow Sea, the macrobenthic abundance and biomass in the Jiaozhou Bay were lower. But the macrobenthic secondary production in the Jiaozhou Bay was more than that of the Bohai Sea.