![]() Although the reason for their seasonal appearance and departure is not known for certain, according to Jeff Boehm, executive director of the Marine Mammal Center in Sausalito, 'Most likely, they left chasing a food source,' anchovies and sardines. In November 2009 the more than 1,701 (Thanksgiving Week, 2009) sea lions that had lived at the pier began to leave, and by late December 2009 nearly all were gone a similar flux in population occurs annually, with the animals returning in the spring. Scientists continue to collect information there, adding to knowledge about sea lion health, dietary habits, and behavior. Volunteers and staff at The Marine Mammal Store and Interpretive Center monitor the sea lion population each day, and educational information is provided to tourists who visit from around the world. 1 nm SSE of Army St.Although fluctuations in the number of sea lions at Pier 39 are dramatic, as many as 1,701 (Thanksgiving Week, 2009) have been officially reported at one time, many of whom are recognizable to researchers and others, and some of whom have been unofficially named. Red daymark “4”, Fl R4s, Alameda NAS Entrance Channel Green daymark “3”, Fl G2.5s, Alameda NAS Entrance Channel 1.2 nm SE of Mission Rock Terminalįl Y 4s “A” Approx 2.5 nm East of Army St TerminalįL R 4s Red “4”, Oakland Inner Harbor Entrance Channelįl R 2s Red “2” Approx 0.5 nm East of Portrero Point Maintenance of this buoy is funded by the Thomas D. ![]() Memorial Buoy by the YRA Board of Directors. * YRA Mark 16 has been designated the Thomas D. Privately maintained White mark “TYC” off entrance to Paradise Cove Harbor 0.28 nm So of Rcmd-SR Bdge main chanĬenter Channel Buoy RW “SF”, strobe Fl 2.5s whis, on San Francisco Channel (ocn) R “6” Fl R 2.5s Mkr (lighted), approximately 1.2 nm SE of Red Rock G “7” Fl G 2.5s Approx 0.45 nm SE of Red Rock Temp YC Buoy approx 0.6 nm NE of Tiburon Clubhouse South Approach Buoy Fl Y 4s to San Francisco Channel (ocn) North Approach Buoy Fl Y 4s to San Francisco Channel (ocn) R “2” Fl R 6s on outer end of Corte Madera Channel R “6” Fl R 4s Bell, 1.1 nm East of Quarry Pt R “8” Fl R2.5s approx 1.5nm E of Pt Bluff Lighted Yellow Column “C” 0.2 nm East of Ft Point – “Blackaller”* 0.5 nm East of Yellow Bluff (Sausalito vicinity) Temp YC Buoy 1.5 nm East of Treasure islandĪpprox. Temp YC Buoy approx 0.6 nm WSW of West end Berkeley Pier ruins ![]() Temp YC Buoy 0.5 nm ESE of West end Berkeley Pier ruins/1 nm ENE of YRA10 ![]() R “4” Fl 4s Horn 1 nm East of Point Blunt R “2” Fl 6s nm Northwest of Treasure Island ![]() Lighted Yellow column “M” 200 yd North of Ft Mason Docks Yellow/Blue sphere “X” Golden Gate Yacht Club Temp YC Buoy 0.31 nm West of Windmill in line with YRA 04 Temp YC Buoy 0.3 nm West of YRA04 in line with YRA 12ĭaymark “2” Fl R on channel East of Sausalito ![]()
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