We wish to report on the results of the breeding and observation of an okinaebisu, Perotrochus beyrichii, caught in the southern area of Izuooshimma. The okinaebisu was bred in an experimental tank at a fixed temperature and the water temperature was kept at 14℃ to 17℃. And we covered the box with a blanket for the purpose of shielding them. According to some records, the movement of the okinaebisu has been reported to be a nocturnal habit but the movement was relatively brisk both day and night, hence the movement is not always a nocturnal habit. The movement of the okinaebisu was not in a direction. That went zigzag at an average speed of 0.3cm per minute, but it was reported to be 2.0㎝ per minute in a short time. And according to our observations, the okinaebisu fed selectively on micro-organisms.From these results,the okinaebisu is considered to be carnivore (sarcop-hagy). The okinaebisu reacted unsatisfactorily against light but reacted relatively fast against flash light. The okinaebisu did not show a sensive reaction to sound.
雑誌名
三重大学水産学部研究報告 = Bulletin of the Faculty of Fisheries, Mie University
巻
8
ページ
73 - 80
発行年
1981-10-01
ISSN
0287-5772
書誌レコードID
AN0023428X
フォーマット
application/pdf
著者版フラグ
publisher
日本十進分類法
660
その他のタイトル
On the Results of Breeding and Observation of Okinaebisu, Perotrochus bayrichii, Caught by Bottom Gill Net
底刺網で採取したオキナエビスの飼育結果について
AN0023428X0000807.pdf
(413.02KB)
