Core monitoring surveys make up the long-term backbone of the IEP monitoring program (see examples). These surveys have come into existence since before many existing environmental or endangered species laws, and due to their long-term record, are critical to understanding recent variability in the environment, population sizes, and general trends in climate and hydrology in the San Francisco Estuary and associated watersheds.
Examples of use of the data collected in these surveys can be found here:
Many current important survey programs were created in response to needs by agency managers and policymakers for additional information or more “real-time” water project decision-making requirements. As we become more sophisticated in our understanding of San Francisco Estuary ecology, our information needs evolve and grow. The IEP works with our member agencies, stakeholders, the research community, and the public to understand changing information needs and collect relevant species and environmental data.
Research Fleet Monitoring Status Calendar
The table below represents the current monitoring status of the IEP Research Fleet.
Interagency Ecological Program Field Monitoring Status as of February 24, 2023
Agency/Survey |
Study Schedule |
Current Status |
Comments |
CDFW Adult Striped Bass
(IEP PEN#002) |
Feb - May |
Out of Season |
|
CDFW Fall Mid-Water Trawl
(IEP PEN#003) |
Sep - Dec |
Out of Season |
|
CDFW Adult Sturgeon
(IEP PEN#005) |
Aug - Oct |
Out of Season |
|
CDFW Summer Townet Survey
(IEP PEN#007) |
Jun - Aug |
Out of Season |
|
CDFW Bay Study
(IEP PEN#011 and #012) |
Jan - Dec |
Occurring |
Complete for February 2023. |
CDFW 20-mm Survey
(IEP PEN#033) |
Mar - Jul |
Out of Season |
|
USFWS/CDFW Mossdale Trawl
(IEP PEN#071) |
Jan - Dec |
Occurring |
|
CDFW Knights Landing Screw Traps
(IEP PEN#074) |
Aug 2022 -
Jun 2023 |
Occurring |
|
CDFW Upper Estuary Zooplankton
(IEP PEN#077) |
Jan - Dec |
Occurring |
|
CDFW Spring Kodiak Trawl
(IEP PEN#088) |
Jan - May |
Occurring |
|
CDFW Smelt Larval Survey
(IEP PEN#096) |
Dec - Mar |
Occurring |
|
CDFW Smelt Larval Entrainment Pilot Study
(IEP PEN#352) |
Jan - May |
Occurring |
|
DWR EMP Continuous
(IEP PEN#072) |
Jan - Dec |
Occurring |
|
DWR EMP Discrete
(IEP PEN#072) |
Jan - Dec |
Occurring |
|
DWR Yolo Bypass Fish Monitoring (IEP PEN#047) |
Jan - Dec |
Occurring |
Fyke trap was pulled February 24th due to sea lion incident and will not be redeployed in the near term until further modifications are performed. |
DWR San Joaquin River DO (IEP PEN#073) |
Jan - Dec |
Occurring |
|
UC Davis Suisun Marsh Monitoring (IEP PEN#093) |
Jan - Dec |
Occurring |
|
UC Santa Cruz/NMFS Enhanced Acoustic Telemetry
(IEP PEN#333) |
Jan - Dec |
Occurring |
|
USFWS Delta Juvenile Fish Monitoring Program -
Beach Seines (IEP PEN#053) |
Jan - Dec |
Occurring |
|
USFWS Delta Juvenile Fish Monitoring Program -
Chipps & Sacramento Trawls (IEP PEN#053) |
Jan - Dec |
Occurring |
|
USFWS Enhanced Delta Smelt Monitoring
(IEP PEN#325) |
Jan - Dec |
Occurring |
|
USGS Continuous Flow -
Water Quality Monitoring
(IEP PEN#029 & PEN#030) |
Jan - Dec |
Ongoing |
|
Fish Salvage Monitoring |
N/A |
Ongoing |
More information on salvage export/density data can be found on the CDFW Fish Salvage Monitoring page and on EDI - Fish Facilities Salvage Data from 1993-2021. |