如标准方法第10200-F.2b节所述，帕尔默-马洛尼（P-M）计数室法用于列举10种不同的单藻培养物，代表三种藻类形态类型（即菌落、单细胞和丝状）。通过P-M法获得的计数标准偏差不是常数。尽管绝对标准偏差随着细胞密度的增加而增加，但相对标准偏差从低细胞密度时的大于30%降至高细胞密度时的小于10%。 三种形态类型之间的变异性相似。包括19个参考文献、表格和图表。

The Palmer-Maloney (P-M) counting chamber method, as described in Standard Methods section 10200-F.2b, was used to enumerate 10 different unialgal cultures represnting three algal morphologic types (i.e., colonial, unicellular, and filamentous). The standard deviations of counts obtained by the P-M method were not constant. Although the absolute standard deviation increased with increasing cell density, the relative standard deviation decreased from > 30 percent at low cell density to < 10 percent at high cell density. Variability among the three morphological types was similar. Includes 19 references, tables, figures.