Aquatic

Fish Cognition and Its Welfare Implications

Research into fish cognition has revealed surprisingly sophisticated mental abilities with important implications for how we understand and treat fish welfare.

Key Facts

Fish demonstrate spatial memory, allowing them to remember food locations over extended periods
Some species show numerical ability and can distinguish between group sizes
Cleaner wrasse pass a simplified version of the mirror self-recognition test
Fish form stable social relationships and show preferential association with known individuals
Learning and innovation have been documented across many fish species in field conditions

Welfare Considerations

The cognitive sophistication of fish strengthens the case for their sentience and welfare consideration. Animals capable of learning, memory, and social recognition are more likely to have subjective experiences including suffering. The billions of fish caught and farmed annually deserve welfare consideration commensurate with their cognitive and sentience evidence.

What You Can Do

Follow advances in fish cognition research and consider their welfare implications
Support policy expansion of fish welfare protections based on growing evidence
Choose fish products from operations with documented welfare practices
Engage with public debates about fish welfare and sentience
Support organisations conducting fish sentience and cognition research