Posted on October 6, 2005 by

Ever Wonder How Invasive Species Get in to Our Waterways?

In an epic tale of human kindness our hero rises to the challenge. While this guy certainly gets an “A” for effort, I’m not sure the outcome of the story was too successful. Jake Bronstein writes about his efforts to save a large Asian fish from a supermarket by releasing it back into the wild. A noble act indeed, but potentially damaging to the local environment. Every year invasive species such as the snakehead and zebra mussles are released into North American water and havoc is reaped on the ecosystem.

What is an Invasive Species?

An “invasive species” is defined as a species that is

1) non-native (or alien) to the ecosystem under consideration and

2) whose introduction causes or is likely to cause economic or environmental harm or harm to human health.

Invasive species can be plants, animals, and other organisms.
Human actions are the primary means of invasive species introductions.

This story ends with the release of the fish, but judging by the photographs the fish appears to be dead already. Even dead, an invasive fish could cause potential problems.

For more information on invasive species visit and