種苗放流による遺伝子のおきかわりに関する数理モデル

• 松石 隆

  北海道大学水産学部

• 岸野 洋久

  東京大学教養学部

• 沼知 健一

  東海大学海洋学部

書誌事項

タイトル別名

• A Model of Gene Displacement by Stocking Activities.
• シュビョウ ホウリュウ ニ ヨル イデンシ ノ オキ カワリ ニ カンスル ス

抄録

Recent advances in aquatic hatcheries with a variety of fish and shellfish made a large scale stocking of artificially produced seeds into natural fishing grounds possible. When the genetic properties of the stocking population are different from the wild population, displacement of the gene in the wild population will gradually occur by the gene of the stocking population through reproduction. In this study, we investigate the change of the composition of both genes, in terms of the rate of stocking and fitness of the individuals of each genotype, using a simple mathematical model. When the fitness is equal in each genotype and the rate of stocking is 10%, the term that the gene of the wild becomes half (Genetic Halving Time, GHT) is 8 generations, and the term that the gene of the wild becoms 1% (Genetic Displacement Time, GDT) is 49 generations. When the fitness of the hybrid between wild and stocking individuals is smaller that both parents, GHT and GDT are much smaller.

収録刊行物

• 日本水産学会誌

  日本水産学会誌 61 (3), 326-330, 1995

  公益社団法人 日本水産学会

キーワード

• 種苗放流
• 人工種苗
• 遺伝子組成

詳細情報

• CRID: 1390282681389638400
• NII論文ID: 10004846840
• NII論文ID: 10004853320
• NII書誌ID: AN00193422
• DOI: 10.2331/suisan.61.326
• ISSN: 1349998X
• ISSN: 00215392
• NDL書誌ID: 3618548
• Web Site: https://agriknowledge.affrc.go.jp/RN/2010532376
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I3618548
• 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