藍首亞口魚
藍首亞口魚（學名：Catostomus discobolus）為條鰭魚綱鯉形目亞口魚科的其中一種，為溫帶淡水魚，分布於北美洲美國懷俄明州、愛達荷州蛇河、懷俄明州、猶他州巴那維利湖向南流經科羅拉多河上游流域[2][3][4][5][6][7][8]，本魚體呈圓柱形，口下位成吸盤狀，頂部呈現深綠色或深銀色，底部呈現淺黃色，側線鱗70-100枚，在繁殖過程中，雄魚的大頭頂部會出現藍色斑塊，下鰭會變成黃色或橙色，並帶有紅色或玫瑰色側線，體長可達41公分，棲息在溪流底層水域，可適應各種環境，從山區冰冷的溪流到沙漠地區，白天會待在淺溪流，晚上覓食，繁殖期4至7月。
藍首亞口魚
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科學分類 
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| 界： | 動物界 Animalia |
| 門： | 脊索動物門 Chordata |
| 綱： | 條鰭魚綱 Actinopteri |
| 目： | 鯉形目 Cypriniformes |
| 科： | 亞口魚科 Catostomidae |
| 屬： | 亞口魚屬 Catostomus |
| 種： | 藍首亞口魚 C. discobolus
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| 二名法 | |
| Catostomus discobolus Cope, 1871
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| 異名 | |
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參考文獻
- ^ NatureServe. Catostomus discobolus. The IUCN Red List of Threatened Species. 2013, 2013: e.T62194A3109494 [11 November 2021]. doi:10.2305/IUCN.UK.2013-1.RLTS.T62194A3109494.en
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- ^ Arizona Game and Fish Department. 1988. Threatened Native Wildlife in Arizona. Arizona Game and Fish Department Publication. Phoenix, Arizona. p. 8.
- ^ Arizona Game and Fish Department. In prep. Wildlife of special concern in Arizona. Arizona Game and Fish Department Publication. Phoenix, Arizona. 32 pp.
- ^ Arizona Game and Fish Department Native Fish Diversity Review. 1995. Tempe, Arizona.
- ^ Beyers, D.W. et al. 2001. Habitat Use and Movements of Bluehead Sucker, Flannelmouth Sucker, and Roundtail Chub in the Colorado River. Larval Fish Laboratory, Colorado State University, Fort Collins, CO.
- ^ Cope, E.D. 1872. Recent reptiles and fishes in U.S. Geologic Survey of Wyoming and contiguous territory. Special reports Part IV:432-442.
- ^ Crabtree, C.B., and D.G. Buth. 1987. Biochemical systematics of the catostomid genus Catostomus: assessment of C. clarki, C. plebeius and C. discobolus including the Zuni Sucker, C.d. yarrowi. Copeia 1987:843-854.
- ^ Eddy, S. and J.C. Underhill. 1978. How to know the freshwater fishes, third edition. Wm. C. Brown Company, Dubuque, IA.
- Froese, R. & Pauly, D. (eds.) (2024). Catostomus discobolus. FishBase. Version 2024-05.
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