Amazonian Wetland Fish Abundance and Functional Composition Across 85 Sites

Fish assemblage records from 85 wetlands across the Amazon Basin, compiled by Alessandra Lonardoni and colleagues. The dataset includes standardized abundance data for over 300 taxa, along with site-level environmental predictors and species-level functional traits. It is intended to support analyses of how energy availability and water type influence fish community composition.

Use Cases

• Modeling fish abundance patterns based on environmental predictors like climate, productivity, and hydrology.
• Analyzing functional community composition based on species traits such as maximum body length, trophic strategy, and parental care.
• Investigating the influence of Amazonian water types (whitewater, blackwater, clearwater) on species assemblages.
• Performing spatial analyses of community structure using geographic coordinates and spatial predictors.

Strengths

• Data spans 85 sampling sites across the Amazon Basin.
• Includes standardized abundance data for over 300 fish taxa.
• Integrates three linked tables: species abundance, environmental predictors, and functional traits.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data collection relies on compiled sources; potential for sampling bias across sites.

Provenance

Source

Borealis Harvested Dataverse

Collection Method

Compiled from published studies, databases, and theses with documented sampling effort.

Freshness

Last updated 2026-05-30 04:10:41; freshness should be verified.

Geography

Amazon Basin wetlands.