Difference between revisions of "CALIFORNIA SEA LIONS"

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[[File:Surfing sea lions.png|450px|thumbnail|right|<center>Surfing Sea Lions, Santa Barbara Island </center>]]
  
  

Revision as of 15:06, 16 January 2021

Surfing Sea Lions, Santa Barbara Island


CALIFORNIA SEA LIONS (Zalophus californianus)


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SOUNDS


Listen to California Sea Lions with Elephant Seals on Santa Cruz Island, recorded by Justin Messina.



FARALLON ISLANDS
ISLAND COLLECTOR INSTITUTION DATE NUMBER SPECIMEN
Farallon Islands Leon de Cessac & Pinart MNHN 1878-1879 MNHN ZM AC-1879-269 Zalophus californicus Marine Mammals
Farallon Islands Leon de Cessac & Pinart MNHN 1878-1879 MNHN ZM AC-1879-270 Zalophus californicus Marine Mammals
Farallon Islands Leon de Cessac & Pinart MNHN 1878-1879 MNHN ZM AC-1879-271 Zalophus californicus Marine Mammals
Farallon Islands Leon de Cessac & Pinart MNHN 1878-1879 MNHN ZM AC-1882-190 Zalophus californicus Marine Mammals
Farallon Islands Leon de Cessac & Pinart MNHN 1878-1879 MNHN ZM AC-1885-2 Zalophus californicus Marine Mammals
Farallon Islands Leon de Cessac & Pinart MNHN 1878-1879 MNHN ZM AC-1897-222 Zalophus californicus Marine Mammals



SAN CLEMENTE ISLAND
ISLAND COLLECTOR INSTITUTION DATE NUMBER SPECIMEN
San Clemente Island Albert C. Rogers DMNS June 27, 1928, DMNS-2364 Zalophus californianus Marine Mammals
San Clemente Island Albert C. Rogers DMNS June 27, 1928, DMNS-2365 Zalophus californianus Marine Mammals
San Clemente Island Albert C. Rogers DMNS June 27, 1928, DMNS-2366 Zalophus californianus Marine Mammals
San Clemente Island Albert C. Rogers DMNS June 27, 1928, DMNS-2367 Zalophus californianus Marine Mammals
San Clemente Island Albert C. Rogers DMNS June 27, 1928, DMNS-2368 Zalophus californianus Marine Mammals
San Clemente Island Albert C. Rogers DMNS June 27, 1928, DMNS-2369 Zalophus californianus Marine Mammals
San Clemente Island Albert C. Rogers DMNS June 27, 1928, DMNS-2370 Zalophus californianus Marine Mammals



SANTA BARBARA ISLAND
ISLAND COLLECTOR INSTITUTION DATE NUMBER SPECIMEN
Santa Barbara Island Victor B. Scheffer UAM December 5, 1946 UAM-120700 Zalophus californianus Marine Mammals


SANTA CATALINA ISLAND

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SANTA CRUZ ISLAND
ISLAND COLLECTOR INSTITUTION DATE NUMBER SPECIMEN
Santa Cruz Island J. S. Rowley UMMZ July 12, 1946 UMMZ-77659 Zalophus californianus Marine Mammals



ISLA SAN MARTIN
ISLAND COLLECTOR INSTITUTION DATE NUMBER SPECIMEN
Isla San Martin G. D. Hanna & Frank Tose CAS 1922 CAS-4174 Zalophus californianus californianus Mammals
Isla San Martin W. V. Mayer LACM April 13, 1951 LACM-051203 Zalophus californianus Mammals
Isla San Martin W. V. Mayer LACM April 13, 1951 LACM-051204 Zalophus californianus Mammals




In the News~

August 14, 2019 [Sonoma Times]: “Demographics of sea lion pups show a population under pressure. According to the California Office of Environmental and Health Hazard Assessment, (OEHHA), annual sea lion pup birth counts at San Miguel Island between 1997 and 2016 ranged from a low of 9,428 to a high of 27,146. The greatest declines occurred in 1998, 2009, and 2010, all years characterized by warm ocean conditions. According to their compiled research, pup production is a result of successful pregnancies and is an indicator of fish and cephalopods that serve as prey for sea lions. High pup counts in 2011 and 2012 suggest that pregnant females experienced good foraging conditions in these years when cooler ocean conditions prevailed. The number of births declined again in 2015 and 2016 in response to warmer ocean waters due to a marine heat wave and El Niño conditions.”