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Voracious sea lions invade Columbia River
http://www.grindtv.com/outdoor/nature/post/voracious-sea-lions-invade-columbia-river/The Astoria invasion occurs at a time when young sea lions, who are not strong enough to travel long distances to find food, are starving in California, filling care facilities to capacity.
Unusually warm water in the Eastern Pacific, from Mexico to Alaska, is blamed for displacing bait fish populations the sea lions rely on for sustenance.
The so-called “warm blob,” caused in large part by a lack of significant winds and the upwelling those winds typically cause, was blamed for last year’s heat-up, with sea surface temperatures during the spring and summer averaging well above normal.
The phenomenon appears to be evident again this year.
Unusually warm water in the Eastern Pacific, from Mexico to Alaska, is blamed for displacing bait fish populations the sea lions rely on for sustenance.
The so-called “warm blob,” caused in large part by a lack of significant winds and the upwelling those winds typically cause, was blamed for last year’s heat-up, with sea surface temperatures during the spring and summer averaging well above normal.
The phenomenon appears to be evident again this year.
