Folsom浮游生物分样器： 将一定体积的样品分成合适的量。一次操作可以将样品分为两等分，重复操作，可将样品分成任意所需要的量。可拆卸圆柱桶，直径23cm，高39.4cm，容积0.5L；2个可拆卸的透明样品收集槽；4个可调节支撑脚，水平气泡指示器。

文献：

1：Effects of disturbance frequency, intensity, and area on assemblages of stream macroinvertebrates  Oecologia  August 2000, Volume 124, Issue 2, pp 270–279

2：Caddisfly diapause aggregations facilitate benthic invertebrate colonization

https://doi.org/10.1046/j.1365-2656.2003.00779.x

3：Biomass–density relationships and self-thinning of blue mussels (Mytilus spp.) reared on self-regulated longlines  Aquaculture  Volume 308, Issues 1–2, 5 October 2010, Pages 34-43

4： Invasion and production of New Zealand mud snails in the Colorado River, Glen Canyon  Biological InvasionsSeptember 2010, Volume 12, Issue 9, pp 3033–3043

5：Shifts in community size structure drive temperature invariance of secondary production in a stream‐warming experiment  https://doi.org/10.1002/ecy.1857

6：The differing crustacean zooplankton communities of Canadian Shield lakes with and without the nonindigenous zooplanktivore Bythotrephes longimanus  Canadian Journal of Fisheries and Aquatic Sciences, 2003, 60(11): 1307-1313