
TY  - JOUR
A1  - Boon, PI 
A1  - Shiel, RJ 
T1  - Grazing on Bacteria by Zooplankton in Australian Billabongs
JF  - Marine and Freshwater Research
JO  - Mar. Freshwater Res.
Y1  - 1990
VL  - 41
IS  - 2
SP  - 247
EP  - 257
KW  - 
UR  - https://doi.org/10.1071/MF9900247 
N2  - Five species of rotifer (Brachionus lyratus, Conochilus dossuaris, Keratella cochlearis, Keratella quadrata and Trichotria tetractis) ingested bacteria at a prey density of 5-7 &#215; 109 cells L.-1, and a sixth (Keratella procurva) did so at a higher bacterial concentration of 4 &#215; 1010 cells L-1. Gastropus minor, Polyarthra vulgaris, Synchaeta pectinata and Trichocerca similis were not bacteriovores. Fluorescent-stained (DATF or acridine orange) bacteria were not suitable for determining which rotifers were potential grazers. However, bacteriovory was detected easily with safranin-red or methylene-blue stained bacteria. Clearance rates for the zooplankton community larger than 51µpm, determined with 3H-thymidine labelled bacteria, varied from <0.1-71 mL L-1. H-1, but were usually <5 mL L-1 h-1. Significant grazing was detected in >200µm, 90-200µm and 51-90µm fractions: it was impossible to ascribe bacteriovory to discrete taxonomic groups, because zooplankton taxa were not completely separated by these mesh sizes. 
ER  -

