東京湾におけるトリガイの成長，成熟と産卵期

• 田 永軍

  東京大学農学部水産学科 新日本気象海洋(株)環境情報研究所

• 清水 誠

  東京大学農学部水産学科

書誌事項

タイトル別名

• Growth, Maturation and Spawning Season of Fulvia mutica (Reeve) in Tokyo Bay.
• トウキョウワン ニ オケル トリガイ ノ セイチョウ セイジュク ト サンラン

抄録

Growth, maturation and spawning season of Fulvia mutica (Reeve) were examined using shell length frequency analysis, and seasonal changes in percentages occurrence of the mature individuals.<br>Size-frequency analysis of shell length showed that the mode of 0-age group was less than 20mm in August, and grew over 60mm by next April. Thereafter, however, one year age group showed a very slow growth. It seems that most of the cockle can not survive till age two. The von Bertalanffy growth curve of the cockle was determined as SL_t=96.42[1-exp{-0.0818(t-0.2007)}], where SL_t is shell length in mm at age t in month.<br>Both the condition factor and meat weight index were high in March and low after June. Percentage occurrence of mature individuals showed a peak from April to July, and decreased sharply afterward. The shell length of the mature individuals were ranged from 50mm to 55mm, which were supposed to be just one year in age. Analysis showed that spawning season of the cockle in Tokyo Bay lasted from April to July with the major spawning period of May and June.

収録刊行物

• 日本水産学会誌

  日本水産学会誌 63 (3), 361-369, 1997

  公益社団法人 日本水産学会

キーワード

• トリガイ
• 成長
• 成熟
• 産卵期
• 肥満度
• 頻度分布解析

詳細情報

• CRID: 1390001206413255808
• NII論文ID: 10004851077
• NII書誌ID: AN00193422
• DOI: 10.2331/suisan.63.361
• ISSN: 1349998X
• ISSN: 00215392
• ISSN: http://id.crossref.org/issn/00215392
• NDL書誌ID: 4217674
• Web Site: https://agriknowledge.affrc.go.jp/RN/2010570414
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4217674
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • IRDB
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可