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Project: Impacts of storm-driven contaminants on larval delta smelt and the community scale adaptive capacity of prey items to handle those stressors

Description: Funding for this Project will be used to study two critical areas of uncertainty related to the role of insecticides in Delta Smelt population declines. First, it investigates the role of storm driven contaminant loading on larval Delta Smelt development and behavior, linking recent data obtained from laboratory exposure to single insecticide compounds, to the realistic environmental conditions the developing fish experience. Secondly, it explores how insecticides have shaped invertebrate communities in the Delta through the evolution of insecticide resistance.

Reference Number: 3600BQ2096001

Implemented By: Regents of the University of California

Objective: The Project objectives are to: 1. Determine neurodevelopmental and behavioral impacts of contaminated water samples on larval Delta Smelt associated with rain events in the Cache Slough complex in the North Delta. 2. Characterize the extent of adaptive resistance within invertebrate communities of the Cache Slough complex and correlate the occurrence of resistance with the abundance of specific taxa and insecticide body burden concentrations in these prey items.

Type: Research/Planning (including Science)

Total Cost: $659,991.00

Project Status: Project Implementation

On Time?: Yes    Within Scope?: Yes    Within Budget?: Yes

Estimated Completion: 12/31/2023    Actual Completion:

Associated Counties:

Project Benefits a Disadvantaged Community (or SDAC): No

Contribution SourcesContribution DateContribution Amount
Prop. 1, Water Quality, Ecosystem Restoration and Fish Protection Facilities - Delta7/15/2020$659,991.00

Project MetricMetric TopicQuantityUnit
Research/Planning (including Science)Other  

Water Action Plan Target

Achieve the Co-Equal Goals for the DeltaAction Description


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