Darfield Landfill assessment - Periphyton

Periphyton samples were collected from two sites on Waianiwaniwa River upstream and downstream of the site of a proposed landfill, as part of an environmental assessment. Six - 10 quantitative samples were collected (rock scrapes) from each site on 1 December 1999, and analysed for biomass. Community composition was determined from a pooled sample of upstream and downstream locations at each site.

为评估环境质量，研究人员从位于拟建垃圾填埋场上游和下游的Waianiwaniwa河的两个地点采集了浮游生物样本。于1999年12月1日，从每个地点采集了6至10个定量样本（岩石刮擦），并对其生物量进行了分析。通过对每个地点上游和下游位置的混合样本进行统计，确定了群落组成。