| FishBase |
| Gasterosteus aculeatus in Ibaraki, Japan | |
| Main ref. | (95797). Ibaraki Prefecture, 2000. Red Data Book of Ibaraki, Animal Version. Ibaraki Prefecture, Mito. (http://www.pref.ibaraki.jp/kankyo/03chojyuhogo/choj_redbook.html; http://www.pref.ibaraki.jp/kankyo/03chojyuhogo/choj_redbook_keisaishu_list02.html) |
| Status: | native |
| Abundance: | |
| Comments: | Status of threat: Vulnerable (Sea migratory form, Pacific type) (Ref. 95797). |
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