WHY YOU SHOULDN’T FIND DORY.

1 USING CYANIDE

Marine biologists who have studied the use of cyanide to capture tropical fish say they are concerned the Disney release of the film Finding Dory, which features an animated blue tang fish, will increase demand for the species.

2 NEMO REVISITED

“A similar trend was observed after the release of Finding Nemo, which triggered a sharp rise in the sale of orange clown fish,” say Craig Downs and Rene Umberger. But unlike the orange clown fish, which can be bred in captivity, the blue tang can breed only in the wild. To have a reallife “Dory” at home can cost $100 to $200 — just for the fish itself.

3 SIX MILLION FISH

The U.S. Center for Biological Diversity says six million tropical fish imported into the U.S. each year have been poisoned by cyanide off the Philippines, Indonesia and Sri Lanka. Sodium cyanide often is used by tropical fishers to disorient and stun fish, making them easier to catch. Exposure to the poison can cause heart, brain and liver damage to fish. It also can damage coral reef habitats.

4 A LETHAL CLOUD

According to the report, “instead of precisely targeting one fish, the cyanide squirts out of the bottle and immediately forms a lethal cloud that easily spreads down the reef — stunning, damaging or killing everything it comes into contact with.”

5 HARD TO POLICE

In the U.S., importing fish caught using cyanide is illegal, but the National Oceanic and Atmospheric Administration estimates that 90 per cent of aquarium fish are imported illegally. There is no way for buyers to tell if a fish was captured using cyanide.