分類 / 名稱
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Cypriniformes (Carps)
鯉形目 (Carps) >
Catostomidae (Suckers)
亞口魚科 (Suckers) > Catostominae
Etymology: Catostomus: Greek, kata = down + Greek, stoma = mouth (Ref. 45335); utawana: The name is of Onondaga origin, Utawana (utowana, oo-ta-wan’-ne) and translates as ‘‘big waves’’ (species author noted the the word meant sunshins which is a misconception) (Ref. 83995).
環境： 環境 / 氣候帶 / 深度上下限 / 配送範圍
生態學
; 淡水 居於水底的; 河川洄游 (Ref. 126106).
分布
領土 | FAO區域 | 生態系 | 發現紀錄 | 分布圖 | 簡介 | Faunafri
North America: Known only from the Adirondack Mountains of New York State, USA in the Saint Lawrence and Hudson River drainages.
大小 / 重量 / 年齡
成熟度: Lm ? range ? - ? cm
Max length : 10.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 83995); 11.0 cm SL (female)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背的軟條 (總數) : 11 - 12; 臀鰭軟條: 7. Catostomus utawana is distinguished from C. commersonii by the following characters: eye diameter twice or less into snout length (vs. more than twice into snout length); caudal peduncle depth at terminus more than twice into anal-fin length (vs. less than twice into anal-fin length for a small individual); dorsolateral scales of with radii in the dorsal ventral, anterior, and posterior fields (vs. scales with radii in the anterior and posterior fields); individuals rarely exceed 200 mm SL (vs. non-stunted adults of much greater lengths for C. commersonii). In breeding condition, this species is distinguished from C. commersonii by the following characters: pearl organs on anal and caudal fins and on scales found near the anal fin and ventral areas of the caudal peduncle on females (vs. none); pearl organs on nearly every scale and on all fins for males (vs. pearl organs on anal fin, caudal fin, and scales between); males with gold stripe above a dark mid-lateral stripe on both sides, and a gold spot above each eye (vs. a longitudinal white stripe that turns vertically to cross the occipital region or the snout, and no spots dorsal to their eyes); females without stripes (vs. a yellow stripe that resembles the white stripe of male C. commersonii); breeding males and females no red coloration (vs. a scarlet stripe on both male and female) (Ref. 83995).
Body shape (shape guide): elongated.
Adults inhabit hilltop lakes and streams, but is no longer known from its type localities. Individuals spawn once per reproductive season that extends from early June to late July or early August. Preferentially use ephemeral streams for spawning. Arrival at streams is episodic, correlating to precipitation events and appropriate flow. Stream temperature appears to be less important a cue for reproductive behavior than other Catostomus. Females always have pearl organs when in breeding condition; retain drab coloration when spawning. Males develop a gold longitudinal stripe, small gold-colored patch above each eye, and are extensively covered in pearl organs when in breeding condition. Both sexes start to reach sexual maturity at about 4 years. Eggs are about 3mm in diameter (Ref. 83995).
生命週期和交配行為
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Morse, R.S. and R.A. Daniels, 2009. A redescription of Catostomus utawana (Cypriniformes: Catostomidae). Copeia 2009(2):214-220. (Ref. 83995)
IUCN 瀕危狀態 (Ref. 130435: Version 2025-2 (Global))
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基於模型的估計
系統發育多樣性指數 (參考文獻
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00537 (0.00228 - 0.01266), b=3.05 (2.84 - 3.26), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (參考文獻
69278): 2.9 ±0.2 se; based on size and trophs of closest relatives
回復力 (參考文獻
120179): 高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.).
釣魚的脆弱性 (Ref.
59153): Low vulnerability (10 of 100).
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