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Cypriniformes (Carps) >
Leuciscidae (Minnows) > Pogonichthyinae
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.
環境:環境 / 気候帯 / 深さの範囲 / 分布範囲
生態学
; 新鮮な水; 汽水性の 底生の; potamodromous (Ref. 126106). 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 (Ref. 86798). First record from Canada dates back to 2003 (Ref. 125894).
サイズ / 重さ / 年齢
成熟: 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)
Adults occur 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). Migratory behaviour is undetermined (Ref. 126106).
ライフサイクルと交尾行動
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)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-2 (Global))
人間の用途
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インターネットの情報源
モデルに基づく推定値
系統多様性指数 (参照 82804) |
PD50 = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00871 (0.00399 - 0.01901), b=3.06 (2.87 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
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回復力 (参照 120179) |
手段, 1.4年~4.4年の倍増期間の最小個体群 (Preliminary K or Fecundity.). |
漁業の脆弱性 (Ref. 59153) |
Low to moderate vulnerability (28 of 100). 🛈 |