California sea lions ????

California sea lions are “eared seals” native to the West Coast of North America. They live in coastal waters and on beaches, docks, buoys, and jetties. They are easily trained and intelligent and are commonly seen in zoos and aquariums. California sea lions are playful, intelligent, and very vocal (sounding like barking dogs).

Like all marine mammals, they are protected under the Marine Mammal Protection Act. Their population has been increasing since at least 1975, after protections were put in place under the MMPA.

NOAA Fisheries helps conserve the California sea lion through collaborative management, integrated science, partnerships, and outreach. Our scientists use innovative techniques to study, protect, and rescue California sea lions in distress—for example, stranded or caught in nets. Our work helps reduce harm from human activities (such as fishing and pollution) through management based on sound science, public input, and public outreach.

Population Status
NOAA Fisheries estimates population size for the U.S. stock of California sea lions in our stock assessment report. From 1975 to 2014, the maximum population growth rate of the U.S. stock of California sea lions was 7 percent per year.

Protected Status
MMPA Protected
Throughout Its Range
Appearance
Adult females and juveniles are slender-bodied and are blonde to tan in color. Adult males are generally larger than females and are mostly dark brown to black in color. Pups are dark brown at birth and weigh about 16 pounds. When pups are 4 to 5 months old, they molt their dark brown coats for light brown or silver coats.


Behavior and Diet
California sea lions feed mainly offshore in coastal areas. They eat a variety of prey—such as squid, anchovies, mackerel, rockfish, and sardines—found in upwelling areas. They also may take fish from commercial fishing gear, sport fishing lines, and fish passage facilities at dams and rivers.

California sea lions are very social on land and in the water, but during the breeding season the males aggressively defend their territories and females fight other females to protect their pups. While on the breeding islands, California sea lions are very skittish of humans and will run into the water if they see or smell people.

California sea lion males bark like dogs to communicate with other males and females. Females and pups communicate using vocalizations that are unique to the female and pup. Each pup and female has a unique scent that also identifies them. A female can locate her pup among hundreds of others by her pup’s vocalization. When she finds her pup, she smells it as a final check.

One common behavior—called “rafting”—can make a sea lion look like it’s caught in a net. A rafting sea lion holds its flippers above the water for a long time, motionless, to rest and regulate its body temperature. If you cannot see a buoy or net gear, the seal is most likely rafting.

Where They Live
California sea lions live in the shallow waters of the eastern North Pacific Ocean. They prefer sandy beaches or rocky coves for breeding and haul-out sites. Along the West Coast, they also haul out on marina docks as well as jetties and buoys. California sea lions range from southeast Alaska to the Pacific coast of central Mexico. Their primary breeding range is from the Channel Islands in southern California to central Mexico. NOAA Fisheries divides the California sea lion population into three stocks (United States, western Baja California, and Gulf of California) based on the location of major rookeries and the international border. The U.S. stock waters ranges from the U.S./Mexico border to Canada. In normal years, male California sea lions migrate during the winter to feeding areas off California, Oregon, Washington, British Columbia, Canada, and southeast Alaska but females and pups stay near the breeding colonies until the pups are weaned. In warm water (El Niño) years, some females are found as far north as Washington and Oregon, presumably following prey.



California sea lions separate their nursing and feeding activities. A mother sea lion nurses her pup for 1 to 2 days, then leaves the pup ashore while she travels to feeding areas at sea. She spends 2 to 5 days feeding, then returns to nurse. During the mother's absence, the pup doesn’t eat. Females continue a pattern of going to sea for several days and nursing ashore for several days until they wean their pups. This takes almost a year. If you see a pup on the shore, please leave it be. If it looks to be in distress, call your local marine mammal stranding network member.