United States (contiguous states) country information

Common names: Rio Grande minnow, Rio Grande silvery minnow
Occurrence: endemic
Salinity: freshwater
Abundance: scarce (very unlikely) | Ref: Page, L.M. and B.M. Burr, 2011
Importance: | Ref:
Aquaculture: | Ref:
Regulations: protected | Ref: Page, L.M. and B.M. Burr, 2011
Uses: no uses
Comments: Known from Rio Grande drainage (including Pecos River) in Texas and New Mexico (Ref. 86798). Rare and extant only in Rio Grande, New Mexico (Ref. 86798). Also Ref. 3881, 6376. Status of threat: endangered; status declined since 1989. Criteria: 1,3,4 (http://fisc.er.usgs.gov/afs/) (Ref. 81264).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/us.html
National Fisheries Authority: http://www.nmfs.gov
Occurrences: Occurrences Point map
Main Ref: Page, L.M. and B.M. Burr, 2011
National Database:

Common names from other countries

Rio Grande Minnow, Carpa Chamizal, Jeleček riograndský, ... more

Classification / Names Nomi Comuni | Sinonimi | Catalog of Fishes(Genere, Specie) | ITIS | CoL | WoRMS | Cloffa

> Cypriniformes (Carps) > Leuciscidae (Minnows) > Pogonichthyinae
Etymology: Hybognathus: Greek, ybos, -e, -on = curved + Greek, gnathos = jaw; with bulging jaw (Ref. 45335).
More on author: Girard.

Environment: milieu / climate zone / depth range / distribution range Ecologia

; acqua dolce demersale. Subtropical

Distribuzione Stati | Aree FAO | Ecosystems | Presenze | Point map | Introduzioni | Faunafri

North America: Rio Grande drainage (including Pecos River) in Texas and New Mexico, USA.

Size / Peso / Age

Maturity: L_m ? range ? - ? cm
Max length : 10.0 cm TL maschio/sesso non determinato; (Ref. 86798)

Inhabits pools and backwaters of low-gradient creeks and small to large rivers (Ref. 86798). Oviparous, open substratum spawners (Ref. 205, 35784).

Life cycle and mating behavior Maturities | Riproduzione | Spawnings | Egg(s) | Fecundities | Larve

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).

Main reference Upload your references | Bibliografia | Coordinatore | Collaboratori

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 Red List Status (Ref. 130435)

Endangered (EN) (B1ab(i,iii)); Date assessed: 03 December 2018

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO(Publication : search) | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00501 (0.00232 - 0.01084), b=3.13 (2.94 - 3.32), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Resilienza (Ref. 120179): Alto, tempo minimo di raddoppiamento della popolazione meno di 15 mesi (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Hybognathus amarus (Girard, 1856)