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Vegetarian trout - altering diets in predator fish

February 17, 2014

Overfishing is a serious problem in the world's oceans, and aquaculture is one promising way to continue to supply people with the healthy protein that fish provide.

https://p.dw.com/p/1BAFI
Bildergalerie nach Europa eingeschleppte Tiere und Pflanzen Regenbogenforellen
Image: picture-alliance/dpa

The problem with raising trout, however, is that the freshwater fish are predators. Feeding them therefore involves creating fish-meal from other fish caught in the oceans -- which doesn't help the marine environment to recover. That's why scientists in Germany are now trying to discover if this swimming carnivore can also thrive on a vegetarian diet.

Vegetarian trout - altering diets in predator fish