@article{oai:ir.kagoshima-u.ac.jp:00010904,
 journal = {鹿児島大学水産学部紀要=Memoirs of Faculty of Fisheries Kagoshima University},
 month = {2016-10-31},
 note = {In August 1958, the limnological observations of Lake Ikeda were carried out by
some members of Faculty of Fisheries, Kagoshima University. Members of the survey were as follows:, S.Murayama : Director, Biology
K.Kashiwada : Chemistry (Vitamin B_12)
T.Huzita : Physics (Photometry)
T.Kuroki : Technological fishery
T.Takahashi : Physical oceanography
D.Kakimoto : Chemistry (Vitamin B_12)
K.Nozawa : Biology, Water analysis
A.Kanazawa : Chemistry (Vitamin B_12), Present paper contains the result of the observations. As shown in Fig. 1, eighteen
points on the surface of the lake were selected as the stations, in which 'A-series' were
on the line from south-east to-ward north-west, 'B-series' were from south-west to-ward
north-east, 'C-series' were along the north-western coast of the lake and 'D-series' were
the bottom sediment collected.
The used echo-sounder was of the type S-301 made by FURUNO electric Ind. Co.
Water analysis was followed the method fixed in the 'Kaiyo-Kansoku Shishin', a guide
book of oceanographical method in Japan. While the fixing of chemical oxygen
demand was examined by the oxydizing of potassium permanganate in alkaline condition.
Vitamin B_12 was calculated by the Euglena method.
It is noticeable that the scattering layer from 0 to 12 metres and clear thermocline
from 12 to 13 metres were widely spread all over the lake.
It is also noteworthy that both the dissolved oxygen and vitamin B_12 are most
abundant at the layer of 20 metres in all stations. The main distribution of the fish
schools being observed at the same depth.},
 pages = {199--205},
 title = {池田湖調査資料(I)},
 volume = {7},
 year = {}
}