Giant Tiger Prawn Welfare in Intensive Aquaculture

Penaeus monodon, the giant tiger prawn, is one of the highest-value farmed shrimp species, with welfare concerns related to intensive pond culture, disease outbreaks, and broodstock management practices.

Key Facts

Giant tiger prawns are farmed extensively across Southeast Asia, particularly in Thailand, Vietnam, and Bangladesh
Early mortality syndrome caused by Vibrio bacteria has devastated production in many regions since 2012
Broodstock for P. monodon farming often involves wild capture, creating welfare and sustainability concerns
At commercial densities, prawns show increased aggression and cannibalism, particularly around moulting
Research suggests P. monodon can detect noxious stimuli and show avoidance behaviour consistent with pain experience

Welfare Considerations

Giant tiger prawns in intensive ponds experience welfare challenges from overcrowding, disease pressure, and the stresses of moulting in a competitive environment. Wild-caught broodstock experience capture, transport, and eyestalk ablation stress. Disease outbreaks cause mass mortality events where surviving prawns are surrounded by dying and dead conspecifics. Evidence for nociception in penaeid shrimp has strengthened the welfare case for humane handling, lower stocking densities, and disease prevention through good husbandry rather than reactive chemical treatment.

What You Can Do

Choose giant tiger prawn products from farms with third-party welfare and sustainability certification
Advocate for wild broodstock welfare standards and transition to domesticated broodstock lines
Support research into non-ablation maturation techniques for P. monodon broodstock
Engage with seafood retailers about welfare criteria in their shrimp sourcing policies