Adults inhabit pools and backwaters of low-gradient creeks and small to large rivers . Oviparous, open substratum spawners .
Physical description for Rio Grande silvery minnow is currently being compiled.
Behavioural data for Rio Grande silvery minnow is currently being reviewed.
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 .
Freshwater; demersal; potamodromous . Subtropical North America: Rio Grande drainage (including Pecos River) in Texas and New Mexico, USA.
The following diseases are known to affect Rio Grande silvery minnow.
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