Pikeperch is a popular farmed fish in Central and Eastern Europe with welfare needs increasingly studied. Water quality and stocking density are primary welfare variables.
Pikeperch welfare in aquaculture systems requires careful attention to water quality management given their sensitivity to environmental parameters. Oxygen depletion, ammonia accumulation, and high nitrite levels cause acute welfare compromise and mortality. Optimal stocking density balances productive efficiency against the crowding stress and aggression that occur at high densities. Juvenile pikeperch are particularly vulnerable to cannibalism, requiring frequent size grading that itself causes handling stress — refinement of grading procedures reduces welfare impact. Slaughter welfare research for pikeperch is less developed than for salmonids, and best practice protocols for humane pre-slaughter stunning need further investigation and standardization. As production expands, embedding welfare criteria in pikeperch aquaculture certification will be increasingly important.