@article{oai:ir.kagoshima-u.ac.jp:00008060,
 author = {柏田, 研一 and 金澤, 昭夫 and 佐々木, 一郎},
 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 is known generally, in Japan, the location of laver-farm has been confined near the
estuary; the inflow of the fertile elements into the river water being considered to be the
cause of the rich and rapid growth of laver at these regions.
While, as reported previously, a remarkable promotion of the growth of Porphyra tenera is
to be occationed by the supplement of vitamin B_12 to the media.
With the purpose of accertaining the relation between the vitamin B_12 content and the
laver productivity in the farm, the determination of the vitamin B_12 content in the laver-farm was done.
The experiments were carried out on a laver-farm near the estuary, of the river named
Shinkawa running throuth Kagoshima city, and the following results were obtained.
(1) In the sea water near the estuary, abundant B_12 content was ascertained, the distribution of which varying with the change of the tidal current. (Table 1-1,2)
(2) The river water was fixed to be the supplying source of this vitamin contained in
the sea water.
(3) Dissolved oxygen content of river water was observed to be abundant than that of
sea water and nitrite-nitrogen content gave some irregular fluctuation.
(4) It was assumed that, in this laver-farm, a somewhat close relation lies between the
growth of laver and the vitamin B_12 content in the farming water.},
 pages = {52--57},
 title = {ノリ漁場におけるビタミンB_12分布},
 volume = {13},
 year = {}
}