Endangered Fish
Endangered fish in the Alameda Creek watershed
Central California Coast Steelhead Trout (Oncorhynchus mykiss)
Status: Federally threatened
Habitats: Cold-water streams, with adequate
dissolved oxygen, gravel substrates free of excessive silt for spawning,
and riparian vegetation for cover, food and habitat structure
Threats: Habitat destruction and modification
from dams, water diversions, urban development, livestock grazing, gravel
mining, logging, and agriculture
Locations in Alameda Creek watershed: Anadromous
steelhead trout currently only occur in the lower ten miles of Alameda Creek
below the BART weir, but fish passage projects are underway to allow steelhead
access all the way to the headwaters of Alameda Creek, and tributaries Stonybrook
Creek, Sinbad Creek and Arroyo de la Laguna. Landlocked populations of trout
above dams in Calaveras and San Antonio Reservoirs were formerly ocean-going
steelhead.
Center for Biological Diversity information page on Steelhead Trout
Information on Steelhead Trout from NOAA Fisheries
Pacific Lamprey (Lampetra tridentate)
Status: state species of special concern
Habitats: Medium- and large-sized, low-gradient
rivers and streams; spawning habitat is similar to that for salmon or steelhead
trout
Threats: Habitat loss due to reduced river
flows, water diversions, dredging, streambed scouring, channelization, inadequate
protection of streamside vegetation, chemical pollution and spills, and
impeded upstream passage due to dams and poorly designed road culverts
Locations in Alameda Creek watershed: upper
Alameda Creek in Sunol Regional Park
Center for Biological Diversity information page on Pacific Lamprey
Fact sheet from the Fish and Wildlife Service about Pacific Lamprey