Seahorses are traded in massive numbers for traditional medicine and the aquarium trade, with welfare impacts from collection, transport, and captivity.
Collection by trawling injures seahorses through bycatch handling. Transport in small containers without appropriate salinity and temperature causes high mortality. Seahorses in the aquarium trade that fail to receive live prey slowly starve. Pair bond disruption causes behavioral changes suggesting psychological stress in these cognitively complex fish.