Lateral line system in fast and slow swim fishes: do fast swim fishes have small number of neuromasts?

2016 Fiscal Year Final Research Report

• Project/Area Number: 26840132
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Biodiversity/Systematics
• Research Institution: National Museum of Nature and Science, Tokyo
• Principal Investigator: Masanori Nakae 独立行政法人国立科学博物館, 動物研究部, 研究員 (30462807)
• Research Collaborator: SASAKI Kunio 高知大学, 教育研究部, 教授
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 側線系 / 環境適応 / クロマグロ

Outline of Final Research Achievements

The lateral line systems (both lateral line canals and neuromasts) were observed in detail in many teleosts, and compared them between fast swimmers (including fishes inhabiting fast or turbulent waters) and slow simmers (including fishes inhabiting quiet areas). Judging from conditions of the lateral line system in more than 170 species (107 genera, 53 families, 16 orders), the hypotheses that superficial neuromasts are more abundant in slow swimmers or fishes inhabiting quiet areas (e.g., sebastids, pomacentrids and tripterygiids) and canal neuromasts are better developed in fast swimmers or fishes inhabiting fast or turbulent waters (e.g., some scombrids, carangids and salmonids) are not supported. On the other hand, within the same family or genus, test of the hypotheses are still needed.

Free Research Field

魚類形態学