Delta Invasive Species

About the DIISC

DIISC Activities and Symposium

Invasive Animal Species in the Delta

Click the caption of each photo for more information about the species.

A brown-colored Chinese mitten crab (Eriocheir sinensi). Photo by CDFW. — Chinese mitten crab – Eriocheir sinensi (Photo by CDFW)

Many tan-colored New Zealand mudsnails (Potamopyrgus antipodarum) shown with a dime for size reference. Photo by U.S. Geological Survey. — Chinese mitten crab – Eriocheir sinensi (Photo by CDFW)

Invasive Plant Species in the Delta

Click the caption of each photo for more information about the species.

The white flower and green leaves of an alligatorweed (Alternathera philoxeroides) plant. Photo by National Plant Data Center, Baton Rouge, LA. — Alligatorweed – Alternathera philoxeroides (Photo by National Plant Data Center, Baton Rouge, LA)

A section of the Brazilian egeria (Egeria densa) plant. Photo by Lara Gudmundsdottir. — Alligatorweed – Alternathera philoxeroides (Photo by National Plant Data Center, Baton Rouge, LA)