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北海道噴火湾におけるウナギガジ雌魚の性成熟

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Title: 北海道噴火湾におけるウナギガジ雌魚の性成熟
Other Titles: Gonadal Maturation of Female Ribbon Prickleback in Funka Bay, Hokkaido
Authors: 筒井, 浩之1 Browse this author
中谷, 敏邦2 Browse this author →KAKEN DB
髙津, 哲也3 Browse this author →KAKEN DB
高橋, 豊美4 Browse this author →KAKEN DB
Authors(alt): Tsutsui, Hiroyuki1
Nakatani, Toshikuni2
Takatsu, Tetsuya3
Takahashi, Toyomi4
Keywords: 噴火湾
ウナギガジ
性成熟
産卵期
Issue Date: 1995
Publisher: 日本水産学会
Journal Title: 日本水産学会誌
Journal Title(alt): Bulletin of the Japanese Society of Scientific Fisheries
Volume: 61
Issue: 5
Start Page: 707
End Page: 712
Publisher DOI: 10.2331/suisan.61.707
Abstract: Gonadal maturation of female ribbon prickleback, Lumpenus sagitta, collected in Funka Bay, Hokkaido, from September 1991 to Mayebruary 1994 was examined histologically. Oocytes from the chromatin nucleolus stage to the migratory nucleus stage were observed in the ovary. Based on the developmental stages of ovarian eggs, the maturity of female of L. sagitta was divided into five stages: the yolk vesicle stage, the oil drop stage, the early yolk formation stage, the late yolk formation stage and the migratory nucleus stage. In January, 91.6% of the femals had oocytes at the yolk vesicle stage and 8.4% at the oil drop stage. In the same period, postovulatory follicles were found in the ovary. Percentages of oocytes at the oil drop stage increased to 80% in May. In the middle of September, all of the females were in the late yolk formation stage. In Novemver, many oocytes at the migratory nucleus stage were observed. These observations, indicate that L. sagitta spawn from December to January in Funka Bay.
Rights: © 1995 公益社団法人日本水産学会
© 1995 The Japanese Society of Fisheries Science
Type: article
URI: http://hdl.handle.net/2115/38816
Appears in Collections:水産科学院・水産科学研究院 (Graduate School of Fisheries Sciences / Faculty of Fisheries Sciences) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 高橋 豊美

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