- What are invasive species?
- Quagga/Zebra mussel management
- How can I help?
- Invasive Species Action Week
- Citizen science
- Report a sighting
- Eye on Invasives newsletter
- California Aquatic Invasive Species Management Plan
- Laws and regulations
- Marine Invasive Species Monitoring Program
- Contact us
California Aquatic Invasive Species Management Plan
This plan proposes management actions for addressing aquatic invasive species (AIS) threats to the State of California. It focuses on the non-native algae, crabs, clams, fish, plants and other species that continue to invade California’s creeks, wetlands, rivers, bays and coastal waters.
State surveys of California’s coastal waters have identified at least 312 species of aquatic invaders. These invaders cause major impacts: disrupting agriculture, shipping, water delivery, recreational and commercial fishing; undermining levees, docks and environmental restoration activities; impeding navigation and enjoyment of the state’s waterways; and damaging native habitats and the species that depend on them. As the ease of transporting organisms across the Americas and around the globe has increased, so has the rate of AIS introductions.