Back

Title
  • ja 北海道噴火湾におけるウナギガジ雌魚の性成熟
  • en Gonadal Maturation of Female Ribbon Prickleback in Funka Bay, Hokkaido
Creator
    • ja 筒井, 浩之 en Tsutsui, Hiroyuki
Accessrights open access
Rights
  • ja © 1995 公益社団法人日本水産学会
  • en © 1995 The Japanese Society of Fisheries Science
Subject
  • Other en 噴火湾
  • Other ja ウナギガジ
  • Other en 性成熟
  • Other en 産卵期
  • NDC 663
Description
  • Abstract en 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.
Publisher ja 日本水産学会 en The Japanese Society of Scientific Fisheries
Date
    Issued1995
Language
  • jpn
Resource Type journal article
Version Type VoR
Identifier HDL http://hdl.handle.net/2115/38816
Relation
  • isIdenticalTo DOI https://doi.org/10.2331/suisan.61.707
Journal
    • PISSN 0021-5392
    • EISSN 1349-998X
    • NCID AN00193422
      • ja 日本水産学会誌 en Bulletin of the Japanese Society of Scientific Fisheries
      • Volume Number61 Issue Number5 Page Start707 Page End712
File
Oaidate 2023-07-26