Invasive fish species dumped in Manitoba lakes disrupting 'very delicate' ecosystems: fisheries manager
![Eric Mullen said some native fish species have began to decline and become less healthy in Manitoba's water ways, as they contend with predators illegally stocked in rivers and lakes. A man on a green shirt stands on wood dock in front of lake and a forest.](https://i.cbc.ca/1.7266152.1721227560!/fileImage/httpImage/image.jpg_gen/derivatives/16x9_620/hunt-lake.jpg)
Illegally introduced fish species in Manitoba's water bodies are having an adverse impact on native fish populations, which have since declined in numbers and become less healthy, and on anyone who relies on native fish species for economic, cultural or traditional reasons.