Appendix 2 – Species-specific Performance Metrics

This Appendix lists the species-specific performance metrics for all relevant Indicators.

The metrics are set at genus or family level, or at a unique species level. The UoC shall adhere to the metric that is relevant to the cultured species.

The metrics are reviewed and revised according to the ASC Metrics Methodology. ASC relies on data as a backbone for the Programme Development and Revision Procedure, requiring farms to submit data in accordance with the ASC Data Submission Procedure.

2.1 Total Nitrogen (TN) and Total Phosphorous (TP) release (Indicator 2.6.1)

The formulae for calculating TP and TN are explained in Appendix 8.2.

Crustaceans

Penaeus spp.: TP: <5.4kg/t (except P. vannamei) TN <32.4kg/t

P. vannamei: TP: <3.9kg/t TN: <25.2kg/t

Cherax spp. Procambarus spp. Astacus spp. TP: <4.0kg/t TN: <26.1kg/t

Macrobrachium spp: TP: <6.1kg/t TN: <39.2kg/t

Pangasius

All systems: TP: ≤7.2kg/t TN: ≤27.5kg/t

Salmonids – freshwater

Land-based systems TP: ≤4kg/t

Cages TP: ≤5kg/t

Tilapia

All systems TP: ≤20kg/t

2.2 Feed efficiency (Indicator 2.12.5)

The formulae for calculating feed efficiency are explained in Appendix 15.

Crustaceans

Penaeus spp.: FFDRm: ≤1.8 (except P. vannamei)

P. vannamei: FFDRm: ≤1.3

Cherax spp. Procambarus spp. Astacus spp. FFDRm: ≤1.4

Macrobrachium spp: FFDRm: ≤2.1

Molluscs

Haliotis spp.: FFDRm: ≤0.8 FFDRo: ≤0.8

Flatfish

Paralichthys spp. Pseudopleuronectes spp. FFDRm: ≤1.6 FFDRo: ≤2.0

Hippoglossus spp. FFDRm: ≤2.0 FFDRo: ≤3.0

Scophthalmus spp. FFDRm: ≤2.5 FFDRo: ≤3.0

Pangasius

Pangasiidae: FFDRm: ≤0.5 FFDRo: ≤0.5 (complete production cycle)

Pike-perch

Sander lucioperca: FFDRm: ≤2.3 FFDRo: ≤2.95

Salmonids – freshwater

Salmo spp. Oncorhynchus spp. Salvelinus spp. Thymallus spp. Coregonus spp. FFDRm: ≤1.5 FFDRo: ≤2.95 OR max EPA + DHA content ≤9% from marine sources as percentage of fatty acids in the feed

Salmonids – marine

Salmo spp. Oncorhynchus spp. Salvelinus spp. FFDRm: ≤1.2 FFDRo: ≤2.52 OR EPA+DHA: <30g/kg feed

Seabass, Seabream, Meagre

Sparus spp.

Dicentrarchus spp. FFDRm: ≤1.85 FFDRo: ≤2.9

Pagrus spp. FFDRm: ≤2.5 FFDRo: ≤2.9

Argyrosomus spp. FFDRm: ≤2.35 FFDRo: ≤2.9

Seriola and Cobia

Seriola spp. Rachycentron canadum FFDRm: ≤2.9 FFDRo: ≤2.9

Tilapia

Oreochromis spp. Tilapia spp. Coptodon spp. FFDRm: ≤0.8 FFDRo: ≤0.8

Tropical Marine Finfish

Epinephelus spp. Cromileptes spp. Plectropomus spp. Cephalopholis spp. Lutjanus spp. Ocyurus spp. FFDRm: ≤2.6 FFDRo: ≤2.6

Trachinotus spp. FFDRm: ≤2.0 FFDRo: ≤2.0

Lates spp. FFDRm: ≤1.4 FFDRo: ≤2.0

Larimichthys spp. FFDRm: ≤2.9 FFDRo: ≤3.5

Catfish

Clarius FFDRm <1.0 FFDRo <0.5

Heterobranchus FFDRm <1.3 FFDRo <1.0

Clarius x Heterobranchus FFDRm <1.0 FFDRo <1.3

Ictaluriidae FFDRm <0.4 FFDRo <1.0

Silurus FFDRm <1.0 FFDRo <0.5

Cod FFDRm <2.3 then <2.1 from October 2029 FFDRo <1.0

2.3 Mortality Limits (Indicator 4.1.1.6) and Survival Rates (Indicator 4.2.1.4)

The formulae for calculating mortality limits are explained in Appendix 12 (12.6.1).

Catfish

Based on real percentage mortality

 All systems ≤20% 

Cod

Based on observed mortality rate

Viral disease related mortality ≤10% Unexplained mortality rate from each of the previous two production cycles, for sites with total mortality >6% ≤40%

Pangasius

Based on real percentage mortality

All systems ≤20%

Salmonids – marine

Based on observed mortality rate

Viral disease related mortality ≤10% Unexplained mortality rate from each of the previous two production cycles, for sites with total mortality >6% ≤40%

Tilapia

Based on real percentage mortality

All systems after they have attained a size of 100g ≤35%

The formulae for calculating survival rates are explained in Appendix 12 (12.6.1)

Crustaceans

Unfed and non-permanently aerated ponds >25% Fed but non-permanently aerated ponds >45% Fed and permanently aerated ponds >65%

2.4 Maximum fasting duration (Indicator 4.1.2.16 and 4.1.2.31) 

Catfish

Maximum fasting duration 72h

Pangasius

Maximum fasting duration ≤62° days

Salmonids – marine

Maximum fasting duration ≤54° days

Salmonids – freshwater

Maximum fasting duration ≤54° days

Seabass, Seabream, Meagre

Maximum fasting duration ≤ 45° days if water temperature <15°, otherwise 72h

Seriola and Cobia

Maximum fasting duration

Seriola: 72h

Cobia: ≤ 62° days

Tropical Marine Finfish

Maximum fasting duration 72h

Cleaner Fish

Maximum fasting duration ≤54° days

 2.5 Antibiotic and Parasiticide Treatments (Indicators 4.4.14 and 4.4.15)

Catfish

Number of antibiotic treatments ≤3 Number of parasiticide treatments 0

Cod

Gadus Morhua

Number of antibiotic treatments (grow out) ≤3

Number of antibiotic treatments (juvenile) ≤3

Crustaceans

Number of antibiotic treatments127127Crustaceans treated with antibiotics are not eligible for ASC certification. 0

Flatfish

Number of antibiotic treatments ≤3 Number of parasiticide treatments 0

Pangasius

Number of antibiotic treatments ≤3

Salmonids – marine

Number of antibiotic treatments (grow out) ≤3 Number of antibiotic treatments (smolt) ≤3

Seabass, Seabream, Meagre

Number of antibiotic treatments ≤3 (incl. hatchery) Number of parasiticide treatments 1 (incl. hatchery)

Seriola and Cobia

Number of parasiticide treatments 0

Tilapia

Number of antibiotic treatments ≤3

Tropical Marine Finfish

Number of antibiotic treatments ≤3 Number of parasiticide treatments 0