Artificial production and natural breeding of the endangered frog species odorrana ishikawae, with special reference to Fauna conservation in the laboratory

Masayuki Sumida, Naoki Satou, Natsuhiko Yoshikawa, Atsushi Kurabayashi, Mohammed Mafizul Islam, Takeshi Igawa, Shohei Oumi, Seiki Katsuren, Hidetoshi Ota, Nozomi Shintani, Hiroko Fukuniwa, Naomi Sano, Tamotsu Fujii

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Odorrana ishikawae is listed as a class IB endangered species in the IUCN Red List and is protected by law in both Okinawa and Kagoshima Prefectures, Japan. Here, in an effort to help effectively preserve the genetic diversity of this endangered species in the laboratory, we tested a farming technique involving the artificial breeding of frogs, and also promoted natural breeding in the laboratory. Field-caught male/female pairs of the Amami and Okinawa Island populations were artificially bred using an artificial insemination method in the 2004, 2006, and 2008 breeding seasons (March to April). Although fewer than 50% of the inseminated eggs achieved metamorphosis, approximately 500, 300, and 250 offspring from the three respective trials are currently being raised in the laboratory. During the 2009 and 2010 breeding seasons, second-generation offspring were produced by the natural mating activities of the first offspring derived from the two artificial matings in 2004. The findings and the methods presented here appear to be applicable to the temporary protection of genetic diversity of local populations in which the number of individuals has decreased or the environmental conditions have worsened to levels that frogs are unable to survive by themselves.

Original languageEnglish
Pages (from-to)834-839
Number of pages6
JournalZoological Science
Volume28
Issue number11
DOIs
Publication statusPublished - 2011 Nov

Keywords

  • IUCN Red List
  • Odorrana ishikawae
  • artificial insemination
  • endangered frog
  • natural breeding
  • protected species
  • second generation

ASJC Scopus subject areas

  • Animal Science and Zoology

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    Sumida, M., Satou, N., Yoshikawa, N., Kurabayashi, A., Islam, M. M., Igawa, T., Oumi, S., Katsuren, S., Ota, H., Shintani, N., Fukuniwa, H., Sano, N., & Fujii, T. (2011). Artificial production and natural breeding of the endangered frog species odorrana ishikawae, with special reference to Fauna conservation in the laboratory. Zoological Science, 28(11), 834-839. https://doi.org/10.2108/zsj.28.834