
TY  - JOUR
A1  - Growns, IO 
T1  - Efficiency estimates of a stream Benthos suction sampler
JF  - Marine and Freshwater Research
JO  - Mar. Freshwater Res.
Y1  - 1990
VL  - 41
IS  - 5
SP  - 621
EP  - 626
KW  - 
UR  - https://doi.org/10.1071/MF9900621 
N2  - The efficiency of a modified Boulton suction sampler was tested in 2 riffle zones, using multiple removals. Macroinvertebrate fauna was sampled with approximately 70% efficiency on first removal, while organic matter was sampled with 55% efficiency. Sampling efficiencies for specific taxa ranged from 86% (Plecoptera) to 66% (Chironomidae) and 59% (Trichoptera). The results of this study indicate that sampling efficiency can be improved either by taking multiple samples at one location or by increasing the time spent disturbing the substratum and pumping water from the stand pipe. The results also indicate the importance of conducting pilot studies to determine the efficiency of a sampler at sites where the efficiency is likely to be different. 
ER  -

