What are non-native species in California's waterways?

Non-native species in California's waterways refer to organisms that have been introduced to an ecosystem where they did not originally exist. These species often disrupt local ecosystems by competing with, preying on, or otherwise negatively impacting native species. Invasive non-native species can alter habitats, diminish biodiversity, and lead to significant ecological imbalances.

The correct identification of these species as invasive is crucial because it highlights their potential harm to native populations and habitats. For example, invasive fish species might outcompete native fish for food and breeding grounds, leading to declines in native fish populations. Understanding the impact of these invasive species is essential for conservation efforts and managing California's rich and diverse aquatic ecosystems.