渥美半島太平洋岸におけるマアナゴ成熟度の季節変化

• 岡村 明浩

• 宇藤 朋子

• 張 寰

• 山田 祥朗

• 堀江 則行

• 三河 直美

• 田中 悟

• 元信 堯

• 岡 英夫

書誌事項

タイトル別名

• Seasonal Changes in Maturity in the Conger Eel Conger myriaster at the Pacific Coast of Atsumi Peninsula, Central Japan.
• アツミ ハントウ タイヘイヨウガン ニ オケル マアナゴ セイジュクド ノ キセツ ヘンカ

抄録

Seasonal changes in gonadal development were investigated in the conger eel Conger myriaster, collected at a fixed station in the Pacific coast of Atsumi peninsula, central Japan, from November 1996 to September 1998. Out of 188 individuals collected, 182 were female and there were six individuals, the sex of which were unknown. Female individuals caught from March to August were immature (gonadosomatic index (GSI)<1) with the oocytes at the chromatin nucleolus or the perinucleolus stages. From September to January, some relatively matured individuals (GSI : 2-4) appeared at the station, with the oocytes at the oil droplet or the primary yolk globule stages however, they were not caught after February. These results suggest that female C. myriaster on this coast gradually grow up from summer to winter, then the relatively matured larger individuals migrate to elsewhere in early spring.

収録刊行物

• 日本水産学会誌

  日本水産学会誌 66 (3), 412-416, 2000

  公益社団法人 日本水産学会

キーワード

• マアナゴ
• 成熟
• 回遊
• 渥美半島太平洋岸

詳細情報

• CRID: 1390282681388359424
• NII論文ID: 110003160484
• NII書誌ID: AN00193422
• DOI: 10.2331/suisan.66.412
• ISSN: 1349998X
• ISSN: 00215392
• NDL書誌ID: 5347659
• Web Site: https://agriknowledge.affrc.go.jp/RN/2030612055
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I5347659
• Web Site: http://dl.ndl.go.jp/info:ndljp/pid/11075354
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • IRDB
  • NDL
  • Crossref
  • NDL-Digital
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可