Castor River at Zalma, MO
Castor River MO USGS
Castor River at Zalma, MO (07021000) is a real-time streamflow monitoring station on the Castor River in MO, operated by the U.S. Geological Survey. Riverbot tracks its streamflow and alerts anglers the moment flow and temperature hit their fishing window. 36 fish species are associated with this station in public fish records.
- USGS site number
- 07021000
- Operated by
- U.S. Geological Survey
- State
- MO
- Coordinates
- 37.1466, -90.0755
Live conditions & history
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Fish recorded near this station
Community observations nearbyCastor River At Zalma, Mo has 36 fish species documented via iNaturalist research-grade observations within 10 km. These community-sourced records indicate fish presence in the vicinity.
Species include: Weed Shiner (Alburnops texanus), Shadow Bass (Ambloplites ariommus), Black Bullhead (Ameiurus melas), Brown Bullhead (Ameiurus nebulosus), Eyetail Bowfin (Amia ocellicauda), and 31 others.
- Weed Shiner Alburnops texanus
- Shadow Bass Ambloplites ariommus
- Black Bullhead Ameiurus melas
- Brown Bullhead Ameiurus nebulosus
- Eyetail Bowfin Amia ocellicauda
- Western Pirate Perch Aphredoderus gibbosus
- Freshwater Drum Aplodinotus grunniens
- Flier Centrarchus macropterus
- Western Blacktail Shiner Cyprinella venusta
- Steelcolor Shiner Cyprinella whipplei
- Banded Pygmy Sunfish Elassoma zonatum
- Grass Pickerel Esox americanus vermiculatus
- Greenside Darter Etheostoma blennioides
- Bluntnose Darter Etheostoma chlorosoma
- Slough Darter Etheostoma gracile
- Northern Starhead Topminnow Fundulus dispar
- Blackstripe Topminnow Fundulus notatus
- Mississippi Silvery Minnow Hybognathus nuchalis
- Bigeye Chub Hybopsis amblops
- Northern Hog Sucker Hypentelium nigricans
- Channel Catfish Ictalurus punctatus
- Smallmouth Buffalo Ictiobus bubalus
- Brook Silverside Labidesthes sicculus
- Warmouth Lepomis gulosus
- Bluegill Lepomis macrochirus
- Dollar Sunfish Lepomis marginatus
- Longear Sunfish Lepomis megalotis
- Redear Sunfish Lepomis microlophus
- Redspotted Sunfish Lepomis miniatus
- Bantam Sunfish Lepomis symmetricus
- Golden Redhorse Moxostoma erythrurum
- Golden Shiner Notemigonus crysoleucas
- Tadpole Madtom Noturus gyrinus
- Mimic Shiner Paranotropis volucellus
- Bullhead Minnow Pimephales vigilax
- Black Crappie Pomoxis nigromaculatus
Where these records come from
- Evidence
- Community observations nearby
- Research-grade community observations (iNaturalist) recorded near this station, not a formal survey.
- Records
- 36 species
- from 117 individual records
- Observed
- May 30, 2015 – Jul 18, 2026
- 117 dated records
Sources
- iNaturalist research-grade fish observations — 117 records