St. Lucie Estuary Sediment Quality and Bioeffects Summary (2001-2004)

NOAA's National Status and Trends program collected data on sediment contamination, toxicity, and benthic community structure in Florida's St. Lucie Estuary from 2001 to 2004. The study employed a sediment quality triad approach with a probabilistic sampling design. This summary database was created by NOAA's National Centers for Environmental Information (NCEI) as part of a prototype for a national data portal.

Use Cases

• Analyze relationships between chemical contaminant concentrations (e.g., copper, alkyl phenols, PBDEs) and sediment toxicity assay results (MicroTox, amphipod, sea urchin).
• Compare observed contaminant levels against published sediment quality guidelines like Threshold Effects Level (TEL) and Probable Effects Level (PEL).
• Model benthic infauna community structure as a function of multiple stressors including chemical contamination and toxicity metrics.
• Assess biomarker responses in fish and oysters (e.g., acetyl cholinesterase activity, Comet assay, endocrine disruption) relative to localized contamination.
• Investigate the distribution of emerging contaminants of concern in sediment and water samples across the estuary's sampling stations.

Strengths

• Data collection spanned a multi-year period from 2001 to 2004, providing a temporal snapshot of estuary conditions.
• The study integrated multiple assessment lines of evidence including chemistry, toxicity, and benthic ecology.
• The dataset served as a prototype for a national thematic website managing coast-wide contamination and bioeffects data.

Limitations

• The dataset is temporally stale, with the last update recorded in 2004, limiting analysis of recent trends.
• Specific sample sizes (row counts), geographic coordinates for sampling stations, and measurement units are not detailed in the provided description.
• The summary nature of the database may aggregate raw measurements, potentially limiting granular analysis.

Provenance

Source

NOAA National Centers for Environmental Information (NCEI), National Status and Trends: Bioeffects Assessment Program.

Collection Method

Field sampling using a probabilistic design, followed by laboratory analysis of sediment chemistry, toxicity bioassays, and benthic infauna identification.

Time Range

2001 to 2004

Freshness

2004-01-01

Geography

St. Lucie Estuary, Florida, USA