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MetricSpecies and ecosystems

Bycatch of Endangered, Threatened and Protected species

Measurement answer

What this metric measures

Reports ETP-species bycatch as a species-level table, using tonnes or counts for fleet-related mortalities or injuries where applicable and counts for marine aquarium-trade organisms rejected or lost during transport.

Specification

Metric specification

Result format
Structured table
Unit
tonnes or count — source-defined reporting unit
Reporting basis
organization reporting period
Aggregation
Report the applicable total by scientific species name and applicable bycatch outcome category; do not combine fleet-related mortalities or injuries with marine-aquarium-trade rejected or transport-lost organisms.
Pillar
Environmental
Topic
Species and ecosystems
Controlled domain
Nature, biodiversity and land
Entity type
Metric

Reporting boundary

For fishing, fish trading, fish processing and retail, fleet-related ETP-species bycatch; for marine aquarium trade, organisms rejected or lost during transport, within the reporting organization's applicable activities and value-chain scope.

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 Disclosure

    TNFD sector guidance

    Source evidence
    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
    p.85, Section 3.2, Table 16, F.C3.1
    Open official framework source
  • Adopting Disclosure

    TNFD sector guidance

    F.C3.1
    Publisher
    Taskforce on Nature-related Financial Disclosures
    Edition
    Version 1.0, June 2025
    Requirement
    Conditional
    Relationship
    Maps Source Identity
    Mapping outcome
    Published
    Source locator
    p.85, Section 3.2, Table 16, F.C3.1
    Open official framework source
  • Adopting Disclosure

    TNFD sector guidance

    F.C3.1
    Publisher
    Taskforce on Nature-related Financial Disclosures
    Edition
    Version 1.0, June 2025
    Requirement
    Conditional
    Relationship
    Maps Source Identity
    Mapping outcome
    Published
    Source locator
    p.85, Section 3.2, Table 16, F.C3.1
    Open official framework source

Value structure

Dimensions and units

Unit
tonnes or count — source-defined reporting unit
Reporting basis
organization reporting period

Unit meaning: Values use tonnes or count under the disclosed TNFD sector-guidance method, reporting period and boundary.

Table fields and units

  • reporting period
  • applicable sector or activity
  • species scientific name
  • ETP designation or status
  • bycatch outcome category
  • reported value
  • unit
  • geography
  • conservation-status source or standard
  • boundary and exclusions

Published dimensions

  • applicable sector or activity
  • species scientific name
  • ETP status and referenced conservation designation
  • bycatch outcome category
  • measurement basis: weight or number
  • applicable geography where reported

Disclosure method

Formula information

Status
Not applicable
Formula type
Structured Disclosure

Disclosure form

No single formula

Report the source-defined result with its stated fields and method disclosures. This is a standalone nature-impact reporting outcome with an explicit dual specification, identified units, applicable sector boundaries and required species-level reporting. It is not the same construct as threatened-species exposure, habitat condition, or ESRS affected-operation disclosures. The two applicable measurement variants are preserved within one structured family rather than flattened into a single scalar.

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
    p.85, Section 3.2, Table 16, F.C3.1

    Supports: The official TNFD sector guidance supports the identity, boundary and method basis of “Bycatch of Endangered, Threatened and Protected species”.

    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 the applicable sector specification: fleet-related mortality or injury, or marine-aquarium-trade rejection or transport loss.
  • State whether each reported value is a weight or count and retain the unit at field level.
  • Report species using scientific name.
  • Disclose the conservation-status sources or standards used, including applicable IUCN, CMS, CITES and MSC references.
  • Describe the organizational activity and value-chain scope covered and any exclusions.

Record-specific limitations

  • The metric has distinct sector-specific specifications and measurement bases; tonnes and counts are not interchangeable and must be retained as separate reported fields.
  • The marine aquarium-trade specification concerns rejected or transport-lost organisms and must not be represented as fleet-related mortality or injury.
  • Conservation-status references and MSC performance indicators provide classification or assessment context; they do not establish a common conversion between species, counts and weight.

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.