1,450 sea lions have washed up on California beaches this year

© SeaWorld

Sea lion pups brought to SeaWorld.

By the time Wendy Leeds reached him, the sea lion pup had little hope of surviving.

Like more than 1,450 other sea lions that have washed up on California beaches this year, in what animal experts call a growing crisis for the animal, this 8-month-old pup was starving, stranded and hundreds of miles from a mother who still needed to nurse him and teach him to hunt and feed. Ribs jutted from his velveteen coat.

The pup had lain on the beach for hours, becoming the target of an aggressive dog before managing to wriggle onto the deck of a million-dollar oceanfront home, where the owner shielded him with an umbrella and called animal control. In came Ms. Leeds, an animal-care expert at the Pacific Marine Mammal Center, which like other California rescue centers is being inundated with calls about lost, emaciated sea lions.

"It's getting crazy," she said.

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Experts suspect that unusually warm waters are driving fish and other food away from the coastal islands where sea lions breed and wean their young. As the mothers spend time away from the islands hunting for food, hundreds of starving pups are swimming away from home and flopping ashore from San Diego to San Francisco.

Many of the pups are leaving the Channel Islands, an eight-island chain off the Southern California coast, in a desperate search for food. But they are too young to travel far, dive deep or truly hunt on their own, scientists said.

This year, animal rescuers are reporting five times more sea lion rescues than normal — 1,100 last month alone. The pups are turning up under fishing piers and in backyards, along inlets and on rocky cliffs. One was found curled up in a flower pot.

Last week, SeaWorld San Diego said it would shut its live sea lion and otter show for two weeks so it could spare six of its animal specialists for the rescue-and-recovery effort.

"There are so many calls, we just can't respond to them all," Justin Viezbicke, who oversees stranding issues in California for the National Oceanic and Atmospheric Administration, said on a conference call with reporters. "The reality is, we just can't get to these animals."

As the injured animals proliferate, their encounters with humans are growing. Some people offer misguided help such as dousing the pups with water or trying to drag them back into the ocean. Others take selfies with the stranded animals, pet them or let their children pretend to ride them, rescuers said.

As Ms. Leeds approached the quaking sea lion on Capistrano Beach, she frowned at a pile of tuna near his muzzle. "Has someone been trying to feed him?" she asked.

Many are sick with pneumonia, their throaty barks muted to rasping coughs. Parasites have swarmed their digestive systems. Some are so tired that they cannot scamper away when rescuers approach them with nets and towels and heft them into large pet carriers.

"They come ashore because if they didn't, they would drown," said Shawn Johnson, the director of veterinary science at Marine Mammal Center in Sausalito. "They're just bones and skin. They're really on the brink of death."

This year is the third in five years that scientists have seen such large numbers of strandings.