Aquaculture

Shrimp Eyestalk Ablation Ethics and Welfare

Eyestalk ablation in farmed shrimp is a common but ethically controversial practice used to induce spawning.

Key Facts

Eyestalk ablation involves removing one eye from female broodstock shrimp to induce maturation
The procedure is performed without anaesthesia and causes acute tissue damage and likely pain
Ablation is standard practice in most large-scale penaeid shrimp hatcheries globally
Unilateral ablation stimulates gonadotropin release leading to accelerated spawning
Research into hormonal alternatives to ablation is ongoing but not yet widely adopted

Welfare Considerations

Eyestalk ablation without anaesthesia causes acute pain and permanent injury to broodstock shrimp. Given growing evidence of crustacean sentience, this practice represents a significant welfare concern conducted at massive scale across global shrimp aquaculture. Development of hormonal alternatives and crustacean anaesthesia protocols is an urgent research priority.

What You Can Do

Support Shrimp Welfare Project research into ablation alternatives
Choose certified shrimp from farms committed to phasing out eyestalk ablation
Advocate for eyestalk ablation to be prohibited in welfare certification standards
Follow Aquatic Life Institute research on broodstock welfare improvements