Environmental Impact Statement - Sonoma Land Trust

Table 3.5-2. Continued Page 8 of 12
Common Name
Scientific Name
Delta smelt
(Hypomesus transpacificus)
Status
Federal/State/
Other Geographic Distribution Habitat Requirements
T/T
Found primarily in the Delta below
Isleton on the Sacramento River and
below Mossdale on the San Joaquin
River, as well as in Suisun Bay
Designated critical habitat for the
Delta smelt includes the Delta west
to the Carquinez Bridge. Designated
critical habitat.
Inhabit open surface waters where they
school. Spawning occurs primarily in
sloughs and shallow edge-waters of
channels in the upper Delta and in the
Sacramento River.
Potential Occurrence in
Project/Study Area
Low. From January to July they
move into freshwater for
spawning and, during high
flows, they can be washed
downstream into San Pablo Bay
(Moyle 2002), but are rarely
found in the project area.
Tidewater Goby
Eucyclogobius newberryi
E/–
Endemic to California, occur from San
Diego county to Del Norte County;
found in coastal lagoons, estuaries and
marshes
Brackish shallow lagoons and slow to
still moving water in lower stream
reaches where the water salinity levels
range zero to 10 parts per thousand.
None. Potential suitable habitat
exists within the Action Area but.
Tidewater Goby are believed
extirpated from San Francisco
Bay Estuary.
Coho salmon (Central California
Coast)
(Oncorhynchus kisutch)
E/E
Includes naturally spawned populations
from Punta Gorda in northern California
south to and including the San Lorenzo
River in central California, as well as
populations in tributaries to San Francisco
Bay, excluding the Sacramento-San
Joaquin River system
Occur in coastal streams with water
temperatures < 15°C. Need cool, clear water
with instream cover. Spawn in tributaries to
large rivers or streams directly connected to
the ocean (Moyle 2002).
None. Outside of range.
MAMMALS
Pacific Townsend’s (=western)
big-eared bat
Corynorhinus townsendii
townsendii
–/SSC
Coastal regions from Del Norte
County south to Santa Barbara County
Roosts in caves, tunnels, mines, and dark
attics of abandoned buildings. Very
sensitive to disturbances and may
abandon a roost after one onsite visit
Moderate. Known occurrences
within 10 miles of project site;
suitable roosting and foraging
habitat onsite.
Pallid bat
Antrozous pallidus
–/SSC
Occurs throughout California except
the high Sierra from Shasta to Kern
County and the northwest coast,
primarily at lower and mid elevations
Occurs in a variety of habitats from
desert to coniferous forest. Most closely
associated with oak, yellow pine,
redwood, and giant sequoia habitats in
northern California and oak woodland,
grassland, and desert scrub in southern
California. Relies heavily on trees for
roosts
Moderate. Known occurrences
within 10 miles of project site;
suitable roosting and foraging
habitat onsite.