Page 199 - Freshwater-Biology-and-Ecology-Handbook

Figure 4.15
A range of nets for collecting invertebrates from underground streams and pools (Photo Lee Knight)

In smaller underground streams, or those deep into cave systems, smaller equipment is more appropriate.

The standard FBA-pattern pond net comes in a version in which the handle can be broken down into three sections, making it
easier for transportation.
There is also a smaller frame-sized version that is useful for sampling narrow diameter streams. Small pools and underground
‘lakes’ can be sampled using various aquarist hand nets or trawl nets (Figure 4.15).

Details of sampling methods for underground waters are described in Knight et al. (in press) (64) and more general information
about subterranean aquatic ecology can be found in Robertson et al. (2008). (61)

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