Heavy Metal Concentrations in Native Oysters from the Potengi Estuary, Brazil

A dataset comparing the bioconcentration of six heavy metals (Cd, Cr, Cu, Pb, Ni, Zn) in the soft tissues of native oysters (Crassostrea rhizophorae) from two sites in the Potengi estuary, northeastern Brazil. It was created by Thaise M. Senez-Mello and includes sample collection details, physical oyster measurements, and metal concentrations in parts per billion and milligrams per kilogram.

Use Cases

• Compare heavy metal bioaccumulation between two collection sites (Naval Base and Quartel) based on the 'Collection Site' variable.
• Analyze relationships between oyster condition (via the 'Condition Index') and metal concentrations based on described features.
• Investigate potential correlations between tidal conditions ('Tide level', 'Ebb tide hour') and metal uptake in oysters.
• Model spatial variability of heavy metal pollution in an anthropogenically impacted estuary based on the dataset's purpose.

Strengths

• Focuses on six specific heavy metals: Cadmium (Cd), Chromium (Cr), Copper (Cu), Lead (Pb), Nickel (Ni), and Zinc (Zn).
• Includes multiple sample descriptors such as collection date/time, tide data, and oyster physical measurements (shell length, dry weight, volume).
• Provides metal concentration data in two common units: parts per billion (ppb) and milligrams per kilogram (mg/kg).

Limitations

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

Provenance

Source

Thaise M. Senez-Mello via paperswithcode

Collection Method

Field collection of native oysters (Crassostrea rhizophorae) from two sites in the Potengi estuary, followed by laboratory analysis for heavy metals.

Geography

Potengi estuary, northeastern coast of Brazil