← OCEANFARMR ESG HOME03 OYSTER LEASE DEMO
Disclaimer:ESV estimates are indicative only and derived from Tier 1 (area-based) calculations using published unit values. They do not constitute verified environmental credits, regulatory compliance values, or financial instruments. Values should not be used for investment decisions without independent verification. The NOAA-TDC Dual-Flow Framework is a research tool designed to support ESG reporting alignment with TNFD LEAP, GRI 304, and SEEA EA standards.

Lease Parameters

Adjust inputs to compute a Tier 1 ESV estimate.

Region Preset

Lease Area (acres)

Advanced Parameters

Activity Factor

220 days/yr

Fraction of year under active cultivation

TN Adjustment

1.10×

Total nitrogen loading relative to reference

SAV Multiplier

1.10×

Submerged aquatic vegetation proximity factor

EFH Multiplier

1.05×

Essential Fish Habitat proximity factor

REDQS Score

ESV Estimate

Tier 1 · DAF-adjusted · Annual

Total ESV / year

$6,058

$606 per acre · 10 acres · DAF 0.48

Nitrogen Removal

$2,426

253 kg N/yr removed

40.0%

Carbon Sequestration

$130

3.60 t CO₂e/yr

2.1%

Habitat — Commercial

$2,351

Commercial fisheries habitat

38.8%

Habitat — Recreational

$1,151

Recreational ecosystem habitat

19.0%

Co-benefit (not included in ESV total)

Water Filtration

375.0M gal/day

Estimated from 7,500,000 oysters × 50 gal/day each. Excluded from total ESV to avoid double-counting with nitrogen removal.

Formulas Applied

N = 10 ac × 38.1 kg/ac/yr × 1.10 × 0.603 × $20/kg × 0.48

C = 10 ac × 0.25 t × 2.39 × 0.603 × $75/t × 0.48

H_comm = 4.05 ha × $1,738/ha × 1.10 × 1.05 × 0.603 × 0.48

H_rec = 4.05 ha × $851/ha × 1.10 × 1.05 × 0.603 × 0.48

Methodology Lease Explorer