SAN JOAQUIN R NR VERNALIS CA

SAN JOAQUIN RIVER CA USGS

SAN JOAQUIN R NR VERNALIS CA (11303500) is a real-time streamflow monitoring station on the SAN JOAQUIN RIVER in CA, operated by the U.S. Geological Survey. Riverbot tracks its streamflow and alerts anglers the moment flow and temperature hit their fishing window. 11 fish species are associated with this station in public fish records.

USGS site number
11303500
Operated by
U.S. Geological Survey
State
CA
Coordinates
37.6760, -121.2663

Live conditions & history

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Fishing regulations

CA state-wide default default

Default area rules for fish in the public records above. A grey row means the release has no canonical regulation match for that species.

CA state-wide default default only. Water-specific, national-park, sanctuary, licence, and in-season exceptions may apply.

Effective Jan 1, 2026 – Sep 14, 2027 · evaluated for 2026-09-10 in America/Los_Angeles

Regulations shown are for reference only and may not reflect in-season changes. Always verify current regulations with the California Freshwater Sport Fishing Regulations (CDFW) before fishing.

Fish recorded near this station

Sampled at this station's reach

San Joaquin R Nr Vernalis CA has documented fish occurrence data from USGS Presence/Absence sampling at this monitoring station's reach (COMID 1897416). The dataset includes 11 species with recorded observations.

Species include: white catfish (Ameiurus catus), sacramento sucker (Catostomus occidentalis), threadfin shad (Dorosoma petenense), channel catfish (Ictalurus punctatus), green sunfish (Lepomis cyanellus), and 6 others.

Where these records come from

Evidence
Sampled at this station's reach
Fish were sampled directly on the river reach this gauge sits on, so these species were recorded at this spot rather than inferred.
Records
11 species
from 11 individual records
Observed
Sep 23, 2003 – Sep 23, 2003
11 dated records

Sources