| Identifier | 2018-687-FA | ||||||||
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| Purpose | To improve the scientific basis for shallow water habitat restoration to support fisheries in the San Francisco Bay Delta, in collaboration with scientists from the CA Water Science Center. | ||||||||
| Location | San Francisco Bay Delta, Little Holland Tract, California | ||||||||
| Summary | Collected 4 push cores of bottom sediment at 2 locations in Little Holland Tract and 2 locations in Liberty Island. | ||||||||
| Info derived | Grain size and bulk density of bed sediments. | ||||||||
| Comments | Entries for this field activity are based on entries from Field Activity 2018-644-FA Entries for this field activity are based on entries from Field Activity 2018-673-FA | ||||||||
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| Vehicles | MarFac; crewcab - G63-2147R |
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| Organization |
2885 Mission Street
Santa Cruz, CA95060
(831) 460-7401
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| Principal investigators | Jessica R Lacy | ||||||
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| Data category: | Location-Elevation, Sampling |
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| Data type: | Navigation, Geology |
| Equipment | Usage description | Data types | Datasets |
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| Garmin | Navigation | (no data reported) | |
| Push corer | Surveys (geochemical), Surveys (biological), Biology, Geology | 1 |
| Dataset name | Equipment | Description | Dataset contact |
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| Grain size and bulk density from Little Holland Tract and Liberty Island, Sacramento-San Joaquin Delta, California, 2015 to 2019 (ver. 3.0, April 2023) | Push corer | Grain size distribution and bulk density are reported for sediment samples from two flooded agricultural tracts, Little Holland Tract and Liberty Island, in the Sacramento-San Joaquin Delta, California. Samples were repeatedly collected at 8 sites using a Ponar grab or push core samplers during 19 visits to the study area from 2015 to 2019. The long-term time series data collection stations (sites LWA, HVB, HWC, and LVB) were sampled on almost every field survey, and the remaining sites were sampled 6 or times or fewer, some only once. All samples were analyzed for grain size distribution, and some were analyzed for bulk density. These data provide insight into how particle size distributions varied spatially and temporally. | Jessica R Lacy |
