Photo: Gilles San Martin / CC BY-SA 2.0 / Wikimedia Commons
National Natural Monument
Fish
Three-spined Stickleback
Gasterosteus aculeatus
The Three-spined Stickleback is a small freshwater fish with three spines on its back; breeding males build nests of water plants and guard the eggs. It prefers cold, clear spring water, and landlocked populations survive at springs in northern Honshu. Habitats in Fukushima, Tochigi, and Fukui are designated Natural Monuments.
- Scientific name
- Gasterosteus aculeatus
- Group
- Fish
- Prefectures
- Fukushima, Tochigi, Fukui
- 日本語
- イトヨ
- 简体中文
- 三刺鱼
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Map
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Frequently asked questions
The Three-spined Stickleback is designated as a species without a fixed area and lives in places such as Fukushima, Tochigi, Fukui.
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