Development of technology to transfer arbitrary patterns to the left shell of cultured oysters using the spat collector with a processed surface

2022 Fiscal Year Final Research Report

• Project/Area Number: 19K15903
• Research Category: Grant-in-Aid for Early-Career Scientists
• Allocation Type: Multi-year Fund
• Review Section: Basic Section 40030:Aquatic bioproduction science-related
• Research Institution: Hokkaido Research Organization
• Principal Investigator: KAWASAKI Takuma 地方独立行政法人北海道立総合研究機構, 水産研究本部 栽培水産試験場, 主査 (60604577)
• Project Period (FY): 2019-04-01 – 2023-03-31
• Keywords: カキ / 養殖 / 付着器 / 標識 / トレーサビリティ

Outline of Final Research Achievements

In recent years, as the branding of cultured oysters has become popular, the importance of brand management has increased. However, oyster shells are highly diverse, and it is difficult to distinguish brands by appearance. Therefore, in this study, using the property that oysters form shells along the attachment surface, we investigated the conditions under which arbitrary patterns are formed on the left shell as they grow.
In this study, by molding characters, figures, and patterns of 2 to 20 mm square on the surface of the spat collector with height/depth of 0.05 to 2 mm, arbitrary patterns could be given to the left shell of oysters.

Free Research Field

水産増養殖

Academic Significance and Societal Importance of the Research Achievements

本研究により、カキ養殖に用いる付着器の表面に任意の文様を成形しておくことで、その付着器上で成長したカキの左殻に、付着器に成形しておいた文様を転写することができる条件が明らかになった。本研究で示された、カキの左殻へ文様を転写できる付着器上の凹凸の成形条件は、カキ類の付着場所の表面認識範囲を理解する上で、学術的に意義のある結果である。また、水産物としての養殖カキに対し、ブランド・産地・品種等の証明技術として本研究が有効に活用できると考えられ、社会的に意義のある成果が得られたと考えられる。