分類 / Names
共通名の | 類義語 | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
(Carps) > Cyprinidae
(Minnows or carps) > Leuciscinae
Etymology: Hybognathus: Greek, ybos, -e, -on = curved + Greek, gnathos = jaw; with bulging jaw (Ref. 45335); placitus: From the word placitus, meaning broad surface (referring to the relatively broad head) (Ref. 10294). More on author: Girard.
Environment: milieu / climate zone / depth range / distribution range
; 新鮮な水; 汽水性の 底生の. Subtropical; 47°N - 32°N
North America: Missouri, Arkansas, Red, Brazos, and Colorado River drainages from Montana and North Dakota south to New Mexico and Texas, USA; Mississippi River from mouth of Missouri River to Tennessee, USA. Introduced in Pecos River in New Mexico, USA.
サイズ / 重さ / 年齢
Maturity: Lm ?  range ? - ? cm
Max length : 13.0 cm TL オス/雌雄の選別がない; (Ref. 86798); common length : 7.0 cm TL オス/雌雄の選別がない; (Ref. 12193)
Occurs usually in shallow sandy runs and pools of creeks and small to large rivers (Ref. 86798). Oviparous, probably open substratum spawners like congeners (Ref. 205).
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
The pelagic-broadcast spawning behavior consisted of males pursuing a single female and nudging her abdominal region. When the female was ready to spawn, a single male wrapped around the female at which time eggs and milt were simultaneously expelled. Reproduction usually consisted of several individual spawning episodes with at least 10-min intervals between events (Ref. 35784).
Page, L.M. and B.M. Burr, 2011. A field guide to freshwater fishes of North America north of Mexico. Boston : Houghton Mifflin Harcourt, 663p. (Ref. 86798)
CITES (Ref. 118484)
協力者画像Stamps, Coins Misc.音シガテラ（食中毒の名前）速度泳ぐ 型式カマOtoliths脳視覚
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00813 (0.00393 - 0.01681), b=3.13 (2.96 - 3.30), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
回復力 (Ref. 120179
): 高い, １５か月以下の倍増期間の最小個体群 (Preliminary K or Fecundity.).
弱み (Ref. 59153
): Low vulnerability (24 of 100) .