Species Information

Kingdom: Animalia
  Phylum: Craniata
    Class: Actinopterygii
      Order: Cypriniformes
        Family: Leuciscidae
          Genus: Hybognathus
            Species: amarus

Rio Grande Silvery Minnow - Hybognathus amarus

Rio Grande Silvery Minnow

Image courtesy of Biota Information System of New Mexico

316744

Species Extent (New Mexico)

General Description

Rio Grande Silvery Minnow (Hybognathus amarus) is a small (up to 9 cm) minnow that historically was one of the most abundant and widespread fish in the Rio Grande basin, but now occupies roughly 5% of its former range. They are still present on the Rio Grande from Cochiti Dam to the headwaters of Elephant Butte Reservoir, and an experimental population exists in the Rio Grande and Pecos rivers in Texas. They inhabit water with slow to moderate flow in sections of the Rio Grande that have perennial flows of water.

Status

Global Rank: G1

State Rank: S1

State Status: E

Federal Status: Listed Endangered [LE]

USFS Status:

BLM Status:

SWAP Status: SGCN

NMRP Strategy Status:

Observations in Natural Heritage New Mexico Database

Number of Subpopulations: 39

Number of Mapped Locations: 2913

Number of Observations: 11198

Observation date range: 06-02-1925 to 05-30-2104

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