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An apparatus for sampling gravel substrate in streams 1, 2
Author(s) -
O'Connor J. F.
Publication year - 1974
Publication title -
limnology and oceanography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.7
H-Index - 197
eISSN - 1939-5590
pISSN - 0024-3590
DOI - 10.4319/lo.1974.19.6.1007
Subject(s) - biomass (ecology) , substrate (aquarium) , environmental science , sampling (signal processing) , hydrology (agriculture) , mineralogy , geology , ecology , geotechnical engineering , biology , engineering , filter (signal processing) , electrical engineering
A sampler consisting of five rods 76 cm long attached to a nonporous neoprene‐coated nylon bag 63 cm long was inserted into a hole 60 cm deep dug with the aid of a culvert. Experiments with it were conducted in parallel with subsurface colonization cans and the Surber sampler. The cans contained 142.7% greater biomass, the Surber 72.2% less biomass than the bag; 28.7% of the fauna lived below 17.5 cm of gravel.