Aquaculture

Tench Welfare in European Pond Aquaculture

Tench is a traditional freshwater aquaculture species in Central Europe and its welfare in pond systems is relevant to sustainable production in countries such as Czech Republic and Germany.

Key Facts

Tench have been farmed in Central European carp ponds for over 600 years
They tolerate poor water quality and low oxygen conditions better than most other farmed freshwater species
Tench are often reared as secondary species alongside carp in polyculture pond systems
Czech Republic and Germany produce significant quantities for domestic and export markets

Welfare Considerations

Welfare concerns in tench aquaculture include oxygen depletion during warm weather in intensive ponds, handling stress during grading and harvest, poor stunning practices before slaughter, and injuries from crowding during seine netting. Their tolerance of poor conditions can mask welfare problems that would cause distress in more sensitive species.

What You Can Do

Advocate for welfare criteria in Central European pond aquaculture standards
Support development of validated tench-specific welfare indicators
Choose pond-farmed freshwater fish from certified producers with welfare standards
Encourage research into humane slaughter methods appropriate for tench