The Shrimp Summit at RSS • Sept. 23, 2026 • Bangkok, Thailand
Shrimp Welfare
Consumers and seafood buyers are increasingly insisting on higher standards for animal welfare throughout seafood production. This session will investigate the principal welfare concerns in shrimp farming, which include humane slaughter at harvest, eliminating the need for eyestalk ablation in broodstock, and maintaining good welfare throughout the growout cycle. The latest research into humane slaughter methods—which include electrical stunning followed by chill killing, as well as direct chill-killing—will be reviewed, including the insights into the effectiveness of these methods revealed by physiological and behavioral indicators. Speakers will discuss how successive generations of domestication, genetic improvement, and advances in broodstock maturation techniques are making eyestalk ablation—long used to hormonally stimulate egg production in captive penaeid shrimp—increasingly unnecessary. Welfare during growout is also receiving greater attention, not only as an ethical responsibility but as an important contributor to improved health, resilience, and production performance.
University of Stirling
Devi Seafood
University of Stirling
University of Stirling
Simão Zacarias is a Researcher at University of Stirling, visiting Researcher at Asian Institute of Technology and The Center for Responsible Seafood supporting staff. He has been working on viable alternative paths to shrimp eyestalk ablation. He also work on “ Improving Farmed Fish Welfare in Asia” project in which the focus is on developing new interventions that will have positive fish (including shrimp) welfare outcomes in Thailand and Vietnam and provide education on aquatic farmed animal welfare. He was the 2020 Global Aquaculture Innovation Award Winner which recognized his innovative research on advantages of stopping using shrimp eyestalk ablation.