Tag Archives: sea lion populations
Battle over endangered fish has led Oregon to cull sea lions
While sea lion populations in the Pacific Northwest have soared in recent decades, salmon and steelhead numbers have not. And sea lions’ voracious appetite for salmon is the issue at hand. Many of the fish that sea lions eat are among 13 threatened and endangered runs protected under the federal Endangered Species Act. And groups of sea lions have taken to simply waiting at the Bonneville Dam, Willamette Falls and other pinch points where the fish gather as they struggle to make their way upriver to spawn. The Oregon Department of Fish & Wildlife estimates that sea lions eat up to 44% of the Columbia River spring Chinook run and 25% of the Willamette winter steelhead run each year. Video, >click to read< 09:11
Solution to deal with B.C.’s sea lion surplus? Harvest them, group suggests
Sea lion populations have been on the rise for years and wreaking havoc on commercial fishermen’s catches and equipment, according to the Pacific Balance Pinniped Society. Adult male California sea lions can grow to as big as 800 pounds and consume massive quantities of fish as they grow. “Out in the waters and in our rivers, the pinniped populations have just exploded and we know they’re targeting mainly salmon, steelhead, trout and other fin fish species,” said Thomas Sewid. He believes seals and sea lions are over-abundant in B.C. waters and is spearheading a solution to deal with them. “Not just the natives want to start harvesting pinnipeds,” said Sewid. “This is an industry that can explode throughout coastal British Columbia.” >click to read<21:08
California: Thousands of sea lions starving to death as population boom drives food shortage
Booming sea lion populations have depleted their traditional food stocks and are now turning to unhealthy squid and rockfish as their main source of meals. Researchers discovered that this has triggered huge drops in their weight, leading to thousands of sea lion pups starving. In California alone, sea lion populations have increased from 50,000 to 340,000 since 1975. Research published in Royal Society Open Science suggests this population boom has resulted in a massive depletion of sardines and anchovies – the primary food source of sea lions. Read the rest here 08:18
