附植小型底栖动物生物量测定方法的初步研究

为探讨小型底栖动物生物量的测定,于2004年10～12月对青岛太平角潮间带2种海藻上附生的小型底栖动物进行了连续3个月的采样调查,对小型底栖动物各类群的生物量进行了估算,同时测定了附植海洋线虫优势种类的个体干重和ATP含量.结果表明2种海藻上共采得12个小型底栖动物类群,平均丰度和生物量分别为518.95 inds./g algae和1270.05 μg/g algae,海洋线虫和桡足类为优势类群.不同粒级海洋线虫的个体干重为0.14～32.65 μg/ind.,ATP含量为1.18～297.64 ng/ind.,碳/ATP比值为43∶1～99∶1.

A Preliminary Study on Determination of Biomass of the Phytal Meiofauna

To study determination of the meiofaunal biomass, the phytal meiofauna of the two species on seaweeds was surveyed from October to December 2004 at rocky intertidal zone in Taipingjiao Qingdao. The biomass of each meiofauna group was estimated; at the same time the dry weight and the ATP content of the dominant species of nematodes was measured. Twelve meiofauna groups were collected from the two species of seaweeds in total, of which nematodes and copepods were the dominant groups. The abundance and biomass of the phytal meiofauna was 518.95 inds./g algae and 1270.05 μg/g algae on the average, respectively. The values of dry weight of the different nematodes species ranged from 0.14 to 32.65μg/ind., the ATP content from 1.18 to 297.64 ng/ind., the ratio of Carbon/ATP from 43:1 to 99:1.