Ecology of Fishes in Rodeo Lagoon and Rodeo Lake of the Golden Gate National Recreation Area, California, With Emphasis on the Tidewater Goby, (Eucyclogobius newberry (Girard)) and the Yellowfin Goby, Acanthogobius flavimanus (Temminck and Schlegel)
Wang JS. 1983. Ecology of Fishes in Rodeo Lagoon and Rodeo Lake of the Golden Gate National Recreation Area, California, With Emphasis on the Tidewater Goby, (Eucyclogobius newberry (Girard)) and the Yellowfin Goby, Acanthogobius flavimanus (Temminck and Schlegel)
This is a report of a study done on the distribution, relative abundance, and ecological status of fish species in Rodeo Lagoon and Rodeo Lake. Rodeo Lagoon is located on the Pacific Coast between Fort Barry and Fort Cronkhite from the ocean by a sandbar, receives seawater over the sandbar during high tides in storms or during periods when the sandbar is broken. There is an input of fresh water from an inland stream (Rodeo Creek) and from underground springs in the summer dry season. At the east end of the lagoon is a diluted steel weir, on the east side of the road bridge, separating the lagoon from an upper, freshwater lagoon known as Rodeo Lake. This artificial partition, made during World War II, was used by the U.S. Army to save freshwater for emergencies. The freshwater – brackish water environment has also attracted or has entrapped many fish species in the lagoon and lake from different origins. The objectives of this study are (1) to understand the distribution, relative abundance and ecological status of fish species, (2) to have a better understanding of the ecological requirements of the tidewater goby, now that it is in a depleted status in the San Francisco Bay Area and has been found only on Rodeo Lagoon, and to understand the ecological requirements of the yellowfin goby in Rodeo Lagoon and thus control the yellowfin goby population in the lagoon. The yellowfin goby is an introduced fish that is widely distributed in the Sacramento-San Joaquin estuary. The yellowfin goby competes for food and habitat with the tidewater goby in the lagoon, and also preys on it.
- Type
- Unpublished Report
- Authors
- Wang, Johnson
- Date of Issue
- 1983-02
- Units
- GOGA
- Keywords
- Fort Barry, Fort Cronkhite, prickly sculpin, threespine stickleback, Tidewater Goby, yellowfin goby