Density and biomass 密度与生物量
density and biomass dynamics 密度与生物量动态
population density and biomass 种群密度和生物量
High biomass and density occurred in the coastal waters.
高生物量和高密度区出现在沿岸。
The species numbers, biomass and density in spring are higher than those in other seasons.
春季多毛类种数、生物量和栖息密度均较高；
In 1986 and 1988 the authors sampled macrofauna benthos and investigated the distribution of biomass and density.
作者于1986年和1988年在连云港海域进行了底栖动物采样，调查得出了生物量和栖息密度的分布概况。
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