Steelhead Population Monitoring in the Santa Monica Bay
Salmonid Research, Monitoring, and Evaluation (RM&E)
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| 724454 | | S. California - S. Central CA Coast | | 06/01/2015 | | 05/30/2017 | | 2014 | | Completed | | 01/31/2024 | | |
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Description
Given the drought conditions between 2012-2016, the data collected during this study has provided important information on the response of O. mykiss to these conditions and underscores the need for continued long-term monitoring in order to identify opportunities for this species to recover. During the low flow periods of 2013-2016, overall abundance declined, despite documentation of a total of five anadromous adults in Malibu Creek. The abundant rainfall from January – March 2017 provided habitat expansion and increased opportunity for anadromous immigrations, but further emphasizes the importance of consistent monitoring. No O. mykiss were observed in Arroyo Sequit between 2015-2016, when the study reaches went almost totally dry. The numbers of O. mykiss in Topanga Creek also declined substantively as reaches of the creek dried up that had previously been stable spring fed refugia pools. Malibu Creek had pools dry down by early summer and remain disconnected until mid-November, when regular releases from Tapia wastewater Treatment Plant resumed; fewer than 15 resident O. mykiss were observed during the summer/fall months. Few redds have been observed each year, and those that were documented have been associated with resident O. mykiss. No redds at all have been observed in Arroyo Sequit Creek.The number of young of the year and intermediate size class O. mykiss has declined during the drought 2012-2016 in Malibu and Topanga Creeks.
Project Benefit
Potential to help species recover after obtaining monitoring results. Accomplishments
| Research and Monitoring |
| Stream Miles Monitored |
8.60 |
9.03 |
Funding Details |
|
| PCSRF | $163,607 |
| Other | $143,701 |
| Report Total: | $307,308 |
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Worksites
7210922
- Worksite Identifier: 7210922
- Start Date:
- End Date:
Area Description
Arroyo Sequit
Location Information
- Basin: Ventura-San Gabriel Coastal (180701)
- Subbasin:
- Watershed:
- Subwatershed:
- State: California
- Recovery Domain:
- Latitude: 34.041667
- Longitude: -118.933333
ESU
- Southern California Steelhead DPS
Map
Photos
Metrics
Metrics
- E.0
Salmonid Research, Monitoring, and Evaluation (RM&E)Y (Y/N)
- . . E.0.a
RM&E Funding 311,809.00
- . . E.0.b
| Complement habitat restoration project | |
| In-stream barrier removals- no reports have been released to date as the final barrier removal was completed in December 2016 |
- . . E.0.c
| Project identified in a plan or watershed assessment. | |
| CA Coastal Salmonid Population Monitoring Strategy, Design and Methods (Adams et al. 2011) |
- . . E.0.d.1
Number of Cooperating Organizations 9
- . . E.0.d.2
| Name Of Cooperating Organizations. | |
| CDFW, CA Department of Parks and Recreation, California Science Center, Heal the Bay, Los Angeles County Fish and Game Commission, National Park Service, RCDSMM Stream Team, UC Cooperative Extension, Watershed Stewards Program |
- . . E.0.e.1
Number of reports prepared 4
- . . E.0.e.2
| Name Of Report | |
| Steelhead Monitoring in Santa Monica Bay, January 2015 - April 2017 |
- . . E.1
MonitoringY (Y/N)
- . . . . E.1.a
Monitoring funding 102,436.00
- . . . . E.1.b.1
Stream Miles Monitored 1.60
- . . . . E.1.b.2
Acres of Watershed Area Monitored .0
- . . . . E.1.c.2
Salmonid smolt or fry monitoringY (Y/N)
- . . . . . . E.1.c.2.a
# miles (to nearest 0.01 mile) monitored for Salmonid smolt or fry 1.60
- . . . . E.1.c.4
Redd countsY (Y/N)
- . . . . . . E.1.c.4.a
# miles (to nearest 0.01 mile) monitored for redds 1.60
- . . . . E.1.d
| Name Of Comprehensive Monitoring Strategy/Program | |
| CA Coastal Salmonid Population Monitoring Strategy, Design and Methods (Adams et al. 2011) |
7210923
- Worksite Identifier: 7210923
- Start Date:
- End Date:
Area Description
Topanga Creek
Location Information
- Basin: Ventura-San Gabriel Coastal (180701)
- Subbasin:
- Watershed:
- Subwatershed:
- State: California
- Recovery Domain: S. California - S. Central CA Coast
- Latitude: 34.0403
- Longitude: -118.5806
ESU
- Southern California Steelhead DPS
Map
Photos
Metrics
Metrics
- E.0
Salmonid Research, Monitoring, and Evaluation (RM&E)Y (Y/N)
- . . E.0.a
RM&E Funding 311,809.00
- . . E.0.b
| Complement habitat restoration project | |
| Rodeo Ground Berms Removal Project completed in 2008 |
- . . E.0.c
| Project identified in a plan or watershed assessment. | |
| CA Coastal Salmonid Population Monitoring Strategy, Design and Methods (Adams et al. 2011) |
- . . E.0.d.1
Number of Cooperating Organizations 9
- . . E.0.d.2
| Name Of Cooperating Organizations. | |
| CDFW, CA Department of Parks and Recreation, California Science Center California State University Channel Islands, Heal the Bay Los Angeles County Fish and Game Commission, National Park Service, Topanga Creek Stream Team- RCDSMM UC Cooperative Extension |
- . . E.0.e.1
Number of reports prepared 4
- . . E.0.e.2
| Name Of Report | |
| Steelhead Monitoring In the Santa Monica Bay, January 2015 - April 2017 |
- . . E.1
MonitoringY (Y/N)
- . . . . E.1.a
Monitoring funding 102,436.00
- . . . . E.1.b.1
Stream Miles Monitored 4.00
- . . . . E.1.b.2
Acres of Watershed Area Monitored .0
- . . . . E.1.c.2
Salmonid smolt or fry monitoringY (Y/N)
- . . . . . . E.1.c.2.a
# miles (to nearest 0.01 mile) monitored for Salmonid smolt or fry 4.00
- . . . . E.1.c.4
Redd countsY (Y/N)
- . . . . . . E.1.c.4.a
# miles (to nearest 0.01 mile) monitored for redds 4.00
- . . . . E.1.d
| Name Of Comprehensive Monitoring Strategy/Program | |
| CA Coastal Salmonid Population Monitoring Strategy, Design and Methods (Adams et al. 2011) |
7210924
- Worksite Identifier: 7210924
- Start Date:
- End Date:
Area Description
Malibu Creek
Location Information
- Basin: Ventura-San Gabriel Coastal (180701)
- Subbasin:
- Watershed:
- Subwatershed:
- State: California
- Recovery Domain: S. California - S. Central CA Coast
- Latitude: 34.048916
- Longitude: -118.690121
ESU
- Southern California Steelhead DPS
Map
Photos
Metrics
Metrics
- E.0
Salmonid Research, Monitoring, and Evaluation (RM&E)Y (Y/N)
- . . E.0.a
RM&E Funding 311,809.00
- . . E.0.b
| Complement habitat restoration project | |
| Removal of Rindge Dam - Draft Integrated Feasibility Report for the Malibu Creek Ecosystem Restoration Project (USACE January 2017) |
- . . E.0.c
| Project identified in a plan or watershed assessment. | |
| CA Coastal Salmonid Population Monitoring Strategy, Design and Methods (Adams et al. 2011) |
- . . E.0.d.1
Number of Cooperating Organizations 9
- . . E.0.d.2
| Name Of Cooperating Organizations. | |
| CDFW, CA Department of Parks and Recreation, California Science Center, Heal the Bay, Los Angeles County Fish and Game Commission, National Park Service, RCDSMM Stream Team, UC Cooperative Extension, Watershed Stewards Program |
- . . E.0.e.1
Number of reports prepared 4
- . . E.0.e.2
| Name Of Report | |
| Steelhead Monitoring in the Santa Monica Bay, January 2015 - April 2017 |
- . . E.1
MonitoringY (Y/N)
- . . . . E.1.a
Monitoring funding 102,436.00
- . . . . E.1.b.1
Stream Miles Monitored 3.00
- . . . . E.1.b.2
Acres of Watershed Area Monitored .0
- . . . . E.1.c.2
Salmonid smolt or fry monitoringY (Y/N)
- . . . . . . E.1.c.2.a
# miles (to nearest 0.01 mile) monitored for Salmonid smolt or fry 3.00
- . . . . E.1.c.4
Redd countsY (Y/N)
- . . . . . . E.1.c.4.a
# miles (to nearest 0.01 mile) monitored for redds 3.00
- . . . . E.1.d
| Name Of Comprehensive Monitoring Strategy/Program | |
| CA Coastal Salmonid Population Monitoring Strategy, Design and Methods (Adams et al. 2011) |
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