Aquaculture

Murray Cod Welfare in Australian Aquaculture

Welfare overview for Murray cod -- a large Australian freshwater fish in aquaculture with growing welfare focus.

Key Facts

Murray cod (Maccullochella peelii) is Australia's largest freshwater fish and a prized aquaculture species
Production has grown significantly in recirculating aquaculture systems in New South Wales and Victoria
Murray cod are large predatory fish -- reaching market size of 1-2kg in aquaculture systems
Cannibalism in juveniles requires careful size grading as a welfare management tool
They show strong territorial behaviour -- stocking density management is critical for welfare
Water quality including temperature and oxygen is critical -- Murray cod are sensitive to thermal stress
2025 welfare research is documenting stress responses and developing species-specific welfare indicators
Australian consumer interest in sustainable native fish is driving premium market development

Welfare Significance

Murray cod aquaculture welfare reflects the challenges of farming a large, territorial, predatory freshwater fish in intensive systems. Their territorial behaviour and cannibalistic tendencies require active management. Developing welfare standards specific to Murray cod that account for their unique biology will improve both individual welfare and production outcomes.

What You Can Do

Support Murray cod aquaculture producers who demonstrate welfare-conscious management practices
Advocate for welfare standards specific to large native fish species in Australian aquaculture
Support research into Murray cod welfare indicators and optimal production conditions
Choose Murray cod from certified Australian aquaculture operations when available