One-way Gene Flow by Stocking and Its Effects on a Fish Population

• Yokota Masashi

  Department of Aquatic Biosciences, Tokyo University of Fisheries

• Watanabe Seiichi

  Department of Aquatic Biosciences, Tokyo University of Fisheries

Bibliographic Information

Other Title

• One-way Gene Flow by Stocking and Its E

Abstract

In local populations, one-way gene flow occurs during a stocking program. Using a simple recursion formula and information on genetic fitness, the genetic influence on a natural population is investigated when a one-way gene flow takes place at a constant rate. One-way gene flow alters and finally replaces the genetic composition of a natural population when hatchery stocking continues over a long period of time. In particular, if the genetic composition of the stocked individuals differs from that of the optimal one, stocking prevents maximization of population fitness. In the light of these findings we emphasize the importance of using the seeds which are closely related to the gene composition of the natural population.

Journal

• Fisheries science

  Fisheries science 63 (4), 539-542, 1997

  The Japanese Society of Fisheries Science

Keywords

• stocking
• gene flow
• fitness
• genetic composition
• sea farming

Details

• CRID: 1390001204428761344
• NII Article ID: 130003903062
• NII Article ID: 10004870679
• NII Book ID: AA10993718
• DOI: 10.2331/fishsci.63.539
• NDL BIB ID: 4277899
• ISSN: 09199268
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4277899
• Web Site: https://www.jstage.jst.go.jp/article/fishsci1994/63/4/63_4_539/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed