Development of optimum and labor-saving feeding technique for filefish culture using self-feeding system

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K07548
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Aquatic bioproduction science
• Research Institution: Mie University
• Principal Investigator: KOHBARA Jun 三重大学, 生物資源学研究科, 教授 (90183334)
• Project Period (FY): 2015-10-21 – 2018-03-31
• Keywords: ハギ類 / 養殖 / 自発摂餌 / 学習 / 食欲対応

Outline of Final Research Achievements

Both thread-sail filefish and black scraper learned the self-feeding within a short period. They showed clear diurnal feeding pattern synchronizing with a given photo period and the light-dark period defined to be a main external environmental factor which controlled the self-feeding activity of these two species. The optical fiber sensor for the filefish which did not receive the effect of marine wind and wave was developed, and filefish successfully accessed it and activated the self-feeder. Self-feeding system equipped with the optical fiber sensor was installed on the floating sea-cage and reared black scraper filefish. The feeding quantity received the effect of water temperature, however, continuous self-feeding activity was confirmed throughout a year. Thus, the self-feeding technique with the optical fiber sensor was confirmed to be a potential feeding technology for filefish culture.

Free Research Field

水産学　行動生理学