National Natural Monument
Fish
Shimizuike Japanese Stickleback Habitat in the Tsuyagawa River System
津屋川水系清水池ハリヨ生息地 · Tsuyagawasuikeishimizuikehariyoseisokuchi
Photo: Alpsdake / CC BY-SA 3.0 / Wikimedia Commons
- Designated by
- National / Natural Monument
- Designation type
- Habitat / breeding site
- Designated on
- September 19, 2012
- Location
- 岐阜県海津市
- Prefectures
- Gifu
- Scientific name
- Gasterosteus aculeatus subsp. 2
About the Hariyo (Japanese freshwater three-spined stickleback)
The Hariyo is a small stickleback living in spring-fed waters in places such as Gifu Prefecture. It carries sharp spines on its back, and in spring the male builds a nest of water plants to guard the eggs. It depends on cool, clean spring water, and its habitats and breeding sites are protected in several places.
Natural Monuments related to the Hariyo (Japanese freshwater three-spined stickleback) →Map
Approximate location of the designated site (municipality centre).
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Frequently asked questions
The designated site is in 岐阜県海津市.
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