Aquaculture for all

Scientists breed trout out of salmon

JAPAN - Scientists have managed to breed trout from salmon using a new technique they hope will allow them to create tuna fish from mackerel.

The Japanese researchers hope to produce stocks of valuable, endangered species by injecting their germ cells into sterilised embryos from other species.

Goro Yoshizaki, a marine biologist, from the Tokyo University of Marine Science and Technology, Japan, used the method to successfully breed trout from salmon.

The embryos they produced developed into adult trout of both sexes, capable of producing either trout sperm or eggs. These were then combined to produce healthy trout offspring.

The scientists say the technique could be used to preserve threatened species if traditional methods such as reducing fishing, breeding in captivity or restoring their habitat fail.

Create an account now to keep reading

It'll only take a second and we'll take you right back to what you were reading. The best part? It's free.

Already have an account? Sign in here