Biodiversity Credit Readiness (Marine)

Biodiversity credit readiness requires more than metrics. You need a defensible chain from baseline surveys to repeat monitoring, clear outcome types, and conservative claims. MariMap keeps field evidence, QA/QC notes, and metrics together so reviewers can follow the full trail.

At a glance

• Define outcome type: uplift, avoided loss, or maintenance credits.
• Record additionality, durability mechanisms, and leakage risk.
• Separate inputs and activities from verified outcomes.
• Keep baselines and repeat surveys comparable across seasons.
• Package evidence with metrics definitions and sources.

Baselines and repeat surveys

1. Mark a baseline survey and lock the sampling geometry.
2. Schedule repeat surveys on the same plots or transects.
3. Review QA/QC before exporting indicators.

Claims discipline

• Inputs and activities can be reported as implementation evidence.
• Verified outcome claims require independent verification and should reference the claim stage.
• Maintenance credits must show continued condition, not just activity.

Evidence pack checklist

• MRV summary with baseline flag and survey dates.
• Biodiversity indicators and habitat context.
• Methods, metadata, and provenance notes.
• References to the Metrics Reference and Data Providers.

MRV readiness and disclosure alignment

• Baseline vs repeat surveys: mark baselines and keep repeat surveys on comparable geometry.
• Monitoring plan logic: define cadence, QA/QC thresholds, and conservative handling of uncertainty.
• Outcome types and claims discipline: record uplift, avoided loss, or maintenance credits; separate inputs from verified outcomes.
• Rights and integrity: document FPIC, customary marine tenure, OECM, ICCA, benefit sharing, durability mechanisms, and leakage risk.
• Disclosure alignment: map indicators to TNFD, CSRD, ESRS, EU Taxonomy, SBTN, and SBTi requirements.
• Use the Metrics Reference and Data Providers for definitions and sources.

Related guides

• Generating Reports for Funders and Regulators
• Planning Surveys and Data Collection
• Understanding Satellite and Environmental Data