@article{oai:ir.kagoshima-u.ac.jp:00007830,
 author = {山崎, 繁久 and 平田, 八郎},
 journal = {鹿児島大学水産学部紀要=Memoirs of Faculty of Fisheries Kagoshima University},
 month = {2016-10-28},
 note = {As a justification for the use of a electrode respirometer as reported in this memoir in 1982,
measured DO values were compared with those obtained by Winkler methods. The optimum
experimental rotifer density in the respiration chamber, was also tried to be determined.
For the comparison of DO values, the water of several DO levels was supplied to the
respiration chamber. As soon as DO values were recorded through the DO meter at three
different shaking speed, 10, 20, and 30 rpm, DO content of the water was determined by
Winkler method. These measurements were conducted at a constant temperature of 20°C.
Strong positive relationship was observed between DO values measured by DO meter and
Winkler method at each shaking speed. The regression coefficients were stable at each
shaking speed without regard to salinity of water sample, i. e. 1.03±0.02 at 10 rpm, 1.06±0.02 at 20 rpm, and 1.08±0.02 at 30 rpm.
In the rotifer density test, oxygen consumption rates of rotifers measured at densities from 2 to 487 ind・ml^<-1>, were compared after recalculation to oxygen consumption by unit weight.
Rotifers were cultured continuously at about 20 ind・ml^<-1> and 20°C, fed on concentrated
marine Chlorella saccharophila, maintaining the density within a range from 1.5×10^<6> to 6×10^<6> cells・ml^<-1>. Rotifers for the measurements were collected at the food density of 2×10^<6> to 3×10^<6> cells・ml^<-1>.
Averages and standard deviations of oxygen consumption rates by unit weight in the rotifer
density range of 2 to 4, and 10 to 487 ind・ml^<-1> were 7.53±2.53 and 8.92±0.68×10^<-6> ml・dry-μg^<-1>・h^<-1>, respectively. While, those of 2 to 18, and 25 to 487 ind・ml^<-1> were 7.90±2.13 and
9.04±0.54×10^<-6> ml・dry-μg^<-1>・h^<-1>, respectively. Coefficients of variance were estimated at
0.34 and 0.08 in former, 0.27 and 0.06 in the latter.},
 pages = {91--96},
 title = {間欠流水式酸素消費測定装置のシオミズツボワムシヘの適用について},
 volume = {32},
 year = {}
}