Range and Identity
The scientific name is Dionda serena. Several roundnose minnows occur in Texas, and drainage boundaries help distinguish their records. A specimen from a different river should not be added to the Nueces account merely because its body shape resembles a roundnose minnow.
Habitat and Behavior
Adults use rocky pools and runs in the upper river system. Filamentous algae are noted in habitat descriptions, but the presence of algae does not by itself establish what a particular fish has eaten. Current, substrate and plant growth should be recorded as separate observations.
Size and Life-History Records
The compiled maximum is 7.7 centimeters total length. That upper reference does not represent a typical adult size for every stream reach. No maximum weight or detailed breeding calendar is inferred from the sparse account, and measurements of neighboring Dionda species remain separate.
Field Note
Retain the tributary and parent river with every record. The upper Nueces connection is a defining part of this minnow’s geographic identity.
All Lakes With Nueces Roundnose Minnow
Browse lakes and reservoirs with documented Nueces Roundnose Minnow records, listed alphabetically. Records do not establish current abundance or public access. Check the evidence and managing authority for the water you choose.
No published lakes are currently linked to this species in our confirmed records.