Indicators 2.6

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System

Water Type

Feed Dependent

Species

Indicators 2.6

by Contact on 30 October 2026

Applicability

Indicators

Description

2.6.1

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2.6.2

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2.6.3

Indicator applicability: cage-fed systems with feed of a diameter ≥3mm

The UoC shall ensure that feed used contains <1% fines, following the method outlined in Appendix 8 (8.3).

Applicable to

Cages
Other – water based

Brackish/Marine water
Freshwater

Fed

Bivalves
Catfish
Cod
Abalone
Crayfish
Flatfish
Freshwater prawn
Pangasius
Pike-perch
Salmonids – freshwater
Salmonids – marine
Seabass, Seabream, Meagre
Seriola and Cobia
Shrimp
Tilapia
Tropical Marine Fish

2.6.4

The UoC shall ensure that the Receiving Waterbody (RW) has been classified per site as Type A, B or C, following the method outlined in Appendix 8 (8.4).

Applicable to

Cages
Flowthrough/Raceway
Other – land based
Other – water based
Ponds
Suspended

Brackish/Marine water
Freshwater

Fed
Non fed

Bivalves
Catfish
Cod
Abalone
Crayfish
Flatfish
Freshwater prawn
Pangasius
Pike-perch
Salmonids – freshwater
Salmonids – marine
Seabass, Seabream, Meagre
Seriola and Cobia
Shrimp
Tilapia
Tropical Marine Fish

Indicators 2.6.5 – 2.6.14 Scope: Type A waterbodies

Applicability

Indicators

Description

2.6.5

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2.6.6

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2.6.7

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2.6.8

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2.6.9

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2.6.10

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2.6.11

The UoC shall, based on the monitoring of the water quality parameters, ensure that there is no upward rate of change >25% over the past 24 months, for any of the water quality parameters listed below, following the method outlined in Appendix 8 (8.7):

  1. TN concentration; and

  2. TP concentration; and

  3. Chl-a; and

  4. Biological Oxygen Demand (BOD).

Applicable to

Cages
Flowthrough/Raceway
Other – land based
Other – water based
Ponds
Suspended

Brackish/Marine water
Freshwater

Fed
Non fed

Bivalves
Catfish
Cod
Abalone
Crayfish
Flatfish
Freshwater prawn
Pangasius
Pike-perch
Salmonids – freshwater
Salmonids – marine
Seabass, Seabream, Meagre
Seriola and Cobia
Shrimp
Tilapia
Tropical Marine Fish

2.6.12

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2.6.13

The UoC shall report WUM related data in accordance with the ASC Data Submission Procedure.

Applicable to

Cages
Flowthrough/Raceway
Other – land based
Other – water based
Ponds
Suspended

Brackish/Marine water
Freshwater

Fed
Non fed

Bivalves
Catfish
Cod
Abalone
Crayfish
Flatfish
Freshwater prawn
Pangasius
Pike-perch
Salmonids – freshwater
Salmonids – marine
Seabass, Seabream, Meagre
Seriola and Cobia
Shrimp
Tilapia
Tropical Marine Fish

2.6.14

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Indicators 2.6.15 – 2.6.17 Scope: Point source systems

Applicability

Indicators

Description

2.6.15

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2.6.16

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2.6.17

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Indicators 2.6.18 – 2.6.21 Dissolved oxygen requirements

Applicability

Indicators

Description

2.6.18

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2.6.19

The UoC shall demonstrate that the weekly average of daily DO saturation is ≥65% in freshwater or ≥70% in marine waterbodies.

An exception applies if the UoC cannot demonstrate this, in which case the UoC shall ensure the weekly average of daily DO percentage saturation at a ‘downstream, near-field’ impacted location is equal to, or higher than, results from an ‘upstream, far-field’ non-impacted reference location, at least 500m upstream of the site.

Applicable to

Cages
Flowthrough/Raceway
Other – land based
Other – water based
Ponds
Suspended

Brackish/Marine water
Freshwater

Fed
Non fed

Abalone
Bivalves
Catfish
Cod
Crayfish
Flatfish
Freshwater prawn
Pangasius
Pike-perch
Salmonids – freshwater
Salmonids – marine
Seabass, Seabream, Meagre
Seriola and Cobia
Shrimp
Tilapia
Tropical Marine Fish

2.6.20

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2.6.21

Indicator applicability: point-source systems in waterbody Types A and B

The UoC shall conduct DO monitoring downstream from the outflow point and shall demonstrate that daily diurnal DO (DDDO) fluctuation is ≤65% saturation, following the method outlined in Appendix 8 (8.10).

Applicable to

Flowthrough/Raceway
Other – land based
Ponds

Brackish/Marine water
Freshwater

Fed
Non fed

Bivalves
Catfish
Cod
Abalone
Crayfish
Flatfish
Freshwater prawn
Pangasius
Pike-perch
Salmonids – freshwater
Salmonids – marine
Seabass, Seabream, Meagre
Seriola and Cobia
Shrimp
Tilapia
Tropical Marine Fish