| Emeryville Crescent State Marine Reserve | |
|---|---|
 Emeryville Crescent Marsh with theBay Bridge in the background | |
     | |
| Location | Alameda andContra Costa Counties, California, United States |
| Nearest city | Emeryville, California |
| Coordinates | 37°49′55″N122°18′24″W / 37.83194°N 122.30667°W /37.83194; -122.30667 |
| Established | 1985 |
| Governing body | California Department of Parks and Recreation |
Emeryville Crescent State Marine Reserve is amarine reserve ofCalifornia, United States, preserving marshland on the east shore ofSan Francisco Bay. It is managed as part ofEastshore State Park by theEast Bay Regional Park District.[1] The 103.5-acre (41.9 ha) marsh[2] stretches from the eastern approach of theSan Francisco–Oakland Bay Bridge inOakland to the foot of Powell Street inEmeryville. The reserve encompasses the entire Emeryville Crescent Marsh and is named as such for its crescent shape. It was established in 1985.[3]
Temescal Creek drains into the marshes near the Emeryville–Oakland border on the eastern midpoint of the marshlands. The wetlands are made up of native species ofpickleweed,[2] and are currently being threatened bySpartina,[2] a non-native invasive species of Cordgrass. It has invaded 2.4 acres (0.97 ha) or 2.5% of the wetlands.[2] There is an active abatement program consisting of aquatic herbicides.[2]
The park is often used as a recreational area by local fishers and dog-walkers.[2] The reserve is also noted for various problem areas such as unauthorized camping, pettylittering, anddumping large articles of garbage such as TVs and refrigerators.[2]
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