Use of wild resources efficiency — fish oil
Measurement answer
What this metric measures
Reports fish-oil-related efficiency in the use of wild resources for each farmed fish species through either the Fish Oil Forage Fish Dependency Ratio or the quantity of trimmings used in feed.
Specification
Metric specification
- Result format
- Structured table
- Unit
- Fish Oil Forage Fish Dependency Ratio (dimensionless) or kilograms of trimmings used in feed — source-defined reporting unit
- Reporting basis
- Reporting period covered by the TNFD disclosure
- Aggregation
- Reported separately by species of farmed fish; no cross-species aggregation is specified in the extracted evidence
- Pillar
- Environmental
- Topic
- Aquaculture feed sourcing and dependency on wild fish resources
- Controlled domain
- Nature, biodiversity and land
- Entity type
- Metric
Reporting boundary
Feed used for farmed fish species, including fish oil derived from forage fish and, where reported, trimmings used in feed
Verified source occurrences
Framework coverage
This is one canonical metric. The bindings below show every verified framework occurrence without creating duplicate metric pages. Edition, disclosure, role, and relationship remain source-specific.
- Adopting DisclosureSource evidence
TNFD sector guidance
- Publisher
- Taskforce on Nature-related Financial Disclosures
- Edition
- Final English sector guidance collection through August 2026 (17 documents)
- Requirement
- Not Specified
- Relationship
- Defines Disclosure
- Mapping outcome
- Direct Evidence
- Source locator
- TNFD, Additional sector guidance for aquaculture, core sector metrics table, p. 74, official metric code A.C3.3. | Extracted evidence: “Measures Fish Oil Forage Fish Dependency Ratio (FFDRo) by species of farmed fish or reports the quantity of trimmings used in feed in kilograms.” | Page 74, core sector metrics table, A.C3.3
- Adopting DisclosureA.C3.3
TNFD sector guidance
- Publisher
- Taskforce on Nature-related Financial Disclosures
- Edition
- Version 1.0, June 2024
- Requirement
- Conditional
- Relationship
- Maps Source Identity
- Mapping outcome
- Published
- Source locator
- Page 74, core sector metrics table, A.C3.3
Value structure
Dimensions and units
- Unit
- Fish Oil Forage Fish Dependency Ratio (dimensionless) or kilograms of trimmings used in feed — source-defined reporting unit
- Reporting basis
- Reporting period covered by the TNFD disclosure
Unit meaning: Values use Fish Oil Forage Fish Dependency Ratio (dimensionless) or kilograms of trimmings used in feed under the disclosed TNFD sector-guidance method, reporting period and boundary.
Table fields and units
- Farmed fish species
- Indicator basis
- Fish Oil Forage Fish Dependency Ratio
- Trimmings used in feed (kg)
Published dimensions
- Farmed fish species
- Indicator basis: Fish Oil Forage Fish Dependency Ratio or quantity of trimmings used in feed
- Feed ingredient source
Disclosure method
Formula information
- Status
- Not applicable
- Formula type
- Structured Disclosure
Disclosure form
No single formulaReport the source-defined result with its stated fields and method disclosures. The TNFD Aquaculture sector metric is a reportable outcome disclosure, but the extracted specification explicitly supports alternative ratio and quantity outputs. It is therefore retained as a structured, species-dimensioned metric rather than flattened into one scalar ratio or quantity.
Verified sources
Evidence and status sources
Sustopedia checked each record-specific claim directly against primary publisher material. Labels distinguish current measurement authority from future compatibility and corroborative, legal, edition, or method status context. Corroborative evidence can support a stated limitation but cannot establish the core measurement by itself.
Measurement evidence
- Measurement evidenceChecked 30 August 2026
TNFD additional sector guidance collection
- Publisher
- Taskforce on Nature-related Financial Disclosures
- Edition
- Final English sector guidance collection through August 2026 (17 documents)
- Locator
- TNFD, Additional sector guidance for aquaculture, core sector metrics table, p. 74, official metric code A.C3.3. | Extracted evidence: “Measures Fish Oil Forage Fish Dependency Ratio (FFDRo) by species of farmed fish or reports the quantity of trimmings used in feed in kilograms.” | Page 74, core sector metrics table, A.C3.3
Supports: The official TNFD sector guidance supports the identity, boundary and method basis of “Use of wild resources efficiency — fish oil”.
Open official source
Use with context
Interpretation boundaries
Method disclosures required
Source-edition basis: TNFD sector guidance, Final English sector guidance collection through August 2026 (17 documents).
- Identify each farmed fish species covered.
- State whether the reported result is the Fish Oil Forage Fish Dependency Ratio or kilograms of trimmings used in feed.
- Describe the feed boundary and the treatment of trimmings used in feed.
- Disclose the calculation method and data sources if reporting the dependency ratio.
Record-specific limitations
- The extracted specification permits either a Fish Oil Forage Fish Dependency Ratio or a trimmings quantity; the selected indicator basis must be identified for comparability.
- No conversion factors, calculation formula, consolidation approach, or feed-sourcing geography are provided in the extracted evidence.
Interpret this metric with the stated reporting boundary, period convention, value shape, and unit. Results prepared with different boundaries or conventions may not be directly comparable.
Measurement evidence supports the core record-specific claims described above. Corroborative evidence can support limitations, while compatibility and status sources provide their separately labelled context. None of these cards by itself determines an organisation's legal applicability, filing readiness, assurance status, or compliance conclusion.