Richardson Bay
| Richardson Bay | ||
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 View from Strawberry over Richardson Bay. In the right half of the picture Aramburu Island , in the background the skyline of San Francisco . |
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| Waters | San Francisco Bay | |
| Land mass | North America | |
| Geographical location | 37 ° 52 ′ 30 ″ N , 122 ° 29 ′ 0 ″ W | |
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| width | approx. 3 km | |
| depth | approx. 5 km | |
| Tributaries | Arroyo Corte Madera Del Presidio | |
The Richardson Bay is a shallow, species-rich foothills of the San Francisco Bay , named after William A. Richardson , a captain, businessman and landowner from the first half of the 19th century. The bay stretches for a length of about five kilometers and a width of about three kilometers.
Despite the heavy urban use of its surrounding land, the bay is a breeding and migration area for a large number of aquatic and coastal bird species. Because about 40,000 birds are sighted here every year , including endangered species such as Rallus longirostris obsoletus ( California Clapper Rail ), Richardson Bay was classified as an Important Bird Area .
From the late 1960s to the 1980s, Aramburu Island , created by landfills in the northwestern area of Richardson Bay, was a resting place for seals . While around 30 percent of the seal population in the Bay of San Francisco sought refuge on Aramburu Island at times, they have completely disappeared from the island to this day. This is attributed to the increasingly disruptive human influences and the siltation of a nearby deep water channel in the bay.
Large areas of the bay are overgrown with seaweed , making Richardson Bay one of the most important aquatic plants in Northern California. Research in the bay, funded by the San Francisco Foundation in cooperation with San Francisco State University , has been investigating the extent to which water depths affect seaweed planting since 2007.
In the early 1960s, the National Audubon Society, a non-profit environmental organization, purchased 369 acres and established the Richardson Bay Sanctuary .
panorama
Web links
Individual evidence
- ↑ Richardson Bay Ecological Importance ( Memento of the original dated November 16, 2007 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. , from the Richardson Bay Audubon Center & Sanctuary web site, last accessed May 22, 2012.
- ↑ Peter Fimrite: Richardson Bay atoll renovated as nature preserve , in: San Francisco Chronicle of January 2, 2012, last accessed on May 22, 2012.
- ↑ Research and Restoration in Richardson Bay ( Memento of the original from April 17, 2012 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. , from the Richardson Bay Audubon Center & Sanctuary web site, last accessed May 22, 2012.
