Food habit of mesopelagic fish in the Indian Ocean sector of the Southern Ocean

2014 Fiscal Year Final Research Report

• Project/Area Number: 24570020
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Ecology/Environment
• Research Institution: Tokyo University of Marine Science and Technology
• Principal Investigator: MASATO Moteki 東京海洋大学, 海洋科学技術研究科, 准教授 (50330684)
• Co-Investigator(Kenkyū-buntansha): TANIMURA Atsushi 国立極地研究所, 教授 (10125213)
• Co-Investigator(Renkei-kenkyūsha): TAKAHASHI KUnio 国立極地研究所, 准教授 (50413919)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: ハダカイワシ / 南極海 / 動物プランクトン / 食性 / 仔稚魚 / 初期生活史

Outline of Final Research Achievements

We studied early life histories of three species of the meso- and bathypelagic fish in the Indian Ocean sector of the Southern Ocean. We clarified: 1) food habits of larval and juvenile Antarctic myctophid fish Electrona antarctica; 2) distribution and food habits of larval and juvenile bathylagid Bathylagus antarcticus; 3) distribution of larval and juvenile Antarctic myctophid fish E. antarctica; and 4) distribution and morphology of Notolepis coatsi and N. annulata (Notolepididae). These studies provided fundamental, but valuable information of morphology, distribution and food habits during early stages in three common species for the first time, which would be essential data to assess the ecosystem changes in the Southern Ocean.

Free Research Field

南大洋生態学