Putah Creek Fish Assemblage Data Pre- and Post-Flow Rehabilitation

A long-term dataset analyzed for fish assemblage change before and after a 2000 court-mediated Accord altered the flow regime of Putah Creek in Solano County, California. The data, from the University of California, Davis, tracks native and nonnative species richness and abundance at multiple sites over decades. It shows decreased nonnative species richness and increased native assemblage stability following rehabilitation efforts.

Use Cases

• Modeling native fish assemblage recovery based on pre- and post-restoration time-series data.
• Analyzing shifts in species dominance from nonnative to native species following flow regime changes.
• Evaluating the longitudinal gradient of restoration success from upstream to downstream sites.
• Studying the relationship between species evenness and assemblage stability over time.

Strengths

• Data spans decades, incorporating both pre- and post-restoration periods for longitudinal analysis.
• Includes multi-site comparisons, with three upstream sites showing the strongest native species recovery.
• Tracks specific metrics like native/nonnative species richness and rank-abundance shifts over time.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Last update date is unknown; freshness unverified.

Provenance

Source

University of California, Davis

Collection Method

Long-term ecological monitoring of fish assemblages at sites along Putah Creek.

Time Range

Data spans from before the late 1950s dam installation through post-2000 Accord periods.

Geography

Putah Creek, Solano County, California, USA