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Fisheries Science

, Volume 71, Issue 4, pp 823–828 | Cite as

Morphological analysis of a deep-sea whelk Buccinum tsubai in the Sea of Japan

  • Akira Iguchi
  • Hiroharu Ito
  • Masahiro Ueno
  • Tsuneo Maeda
  • Takashi Minami
  • Isao Hayashi
Article

Abstract

Morphometrical analyses were performed on Buccinum tsubai, a deep-sea gastropod found in the Sea of Japan, and morphological differences were examined between the gender and among the four local subpopulations of Hokkaido, Yamagata-Toyama, the Yamato Bank, and San’in which are distinguished by mitochondrial DNA sequence analysis. As a result, sexual dimorphism of B. tsubai was found. Morphological differences were also recognized among four areas which may be related to genetic differences. They are also thought to be associated with the phenotypic plasticity in response to different environmental factors in each area. B. tsubai inhabits the the upper portion of the Sea of Japan Proper Water (UJSPW); and in the UJSPW of the Yamato Basin, nutrients are comparatively abundant and the dissolved oxygen content is low. Such environmental differences may be related to morphological differences among the four areas.

Key Words

Buccinum tsubai Sea of Japan morphometric analysis sexual dimorphism upper portion of the Sea of Japan Proper Water 

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Copyright information

© The Japanese Society of Fisheries Science 2005

Authors and Affiliations

  • Akira Iguchi
    • 1
  • Hiroharu Ito
    • 2
  • Masahiro Ueno
    • 3
  • Tsuneo Maeda
    • 4
  • Takashi Minami
    • 5
  • Isao Hayashi
    • 1
  1. 1.Division of Applied BiosciencesGraduate School of AgricultureKyotoJapan
  2. 2.Graduate School of Human and Environmental StudiesKyoto UniversityKyotoJapan
  3. 3.Field Science Education and Research CenterKyoto UniversityKyotoJapan
  4. 4.Toyama Prefecture Fisheries Research InstituteToyamaJapan
  5. 5.Japan Sea National Fisheries Research InstituteNiigataJapan

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