Application of Ultrasonography to Non-invasive Sexing Based on the Sexual Dimorphism in Gonads of Immature Barfin Flounder Verasper moseri

• Matsubara Takahiro

  Hokkaido National Fisheries Research Institute

• Watanabe Ken-ichi

  Akkeshi Station of Japan Sea Farming Association

• Yamanome Takeshi

  Iwate Fisheries Technology Center

• Kayaba Takaaki

  Hokkaido Institute of Mariculture

書誌事項

タイトル別名

• Application of Ultrasonography to Non-invasive Sexing Based on the Sexual Dimorphism in Gonads of Immature Barfin Flounder <i>Verasper moseri</i>

抄録

An ultrasonographic technique for non-invasive sexing of barfin flounder Verasper moseri was established based on sexual dimorphism of gonadal appearence. We used here a high frequency transducer (10MHz) attaching to ultrasonography to improve echoic images. Although gonads of 23-month-old males were impossible to discern, those of females were visible as bright oval contours in the ultrasonographic images. Accurate identification of sex was accomplished in 63 fish ranged from 204 to 274mm in total length of 14-month-old fish, 288 to 401mm of 19-month-old fish and 252 to 370mm of 23-month-old fish, except for three false diagnosis. On the other hand, it was difficult to determine sex in 11-month-old fish, 98-135mm in total length, by this technique. The present results indicate the practical usefulness of ultrasonography for a rapid, non-invasive and realtime sexing of immature flounders.

収録刊行物

• Ｆｉｓｈｅｒｉｅｓ　ｓｃｉｅｎｃｅ

  Ｆｉｓｈｅｒｉｅｓ　ｓｃｉｅｎｃｅ 65 (2), 244-247, 1999

  公益社団法人 日本水産学会

キーワード

• ultrasound
• ultrasonography
• sexing
• flounder
• teleost

詳細情報

• CRID: 1390282679406429440
• NII論文ID: 130003903350
• NII論文ID: 10004878267
• NII書誌ID: AA10993718
• DOI: 10.2331/fishsci.65.244
• NDL書誌ID: 4706395
• ISSN: 09199268
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4706395
• Web Site: https://www.jstage.jst.go.jp/article/fishsci1994/65/2/65_2_244/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可