关键词: 浅海底栖生物, 生物量, 栖息密度, 多样性, 黄岐湾, epibenthos, biomass, abundance, diversity, Huangqi Bay

Abstract: In April of 2012, 2013 and 2014, and in November of 2012 and 2013, we had respectively made surveys of the Epibenthos in Lianjiang Huangqi Bay. 10 phyla (198 species) of the Epibenthos were identified and the most of them were annulate(121 species). There were only eight species appeared in the five surveys. In the five surveys, the range of biomass of the epibenthos was 13.503~27.092g/m2, and the spring was 18.142g/m2, the autumn 23.079g/m2. The range of abundance of the epibenthos was 208.3~2014.7ind/m2, and the spring was1046.0ind/m2, the autumn 292.5ind/m2. In biomass dominance, Annelida and Echinodermata occurred in spring and autumn alternatively. In abundance dominance, Annelida obviously predominated in spring and autumn. The dominant species changed greatly in spring and autumn during 2012 to 2014. In the five surveys, we only obtained the economic species in 2013, and the species was not much. The first dominant species is Annelid polychaetes. In April and November of 2012, April and November of 2013, April of 2014，the average of diversity index (H ') were 3.909、3.250、3.780、3.441 and 4.156, respectively, which indicated that the ecological environment of epibenthos in the survey place was not polluted or disturbed.