Ocean Heat Wave Off U.S. West Coast Could Badly Disrupt Marine Life, Scientists Say

(SEATTLE) — Federal scientists said Thursday they are monitoring a new ocean heat wave off the U.S. West Coast, a development that could badly disrupt marine life including salmon, whales and sea lions.
The expanse of unusually warm water stretches from Alaska to California, researchers with the National Oceanic and Atmospheric Administration said Thursday. It resembles a similar heat wave about five years ago that was blamed for poorer survival rates for young salmon, more humpback whales becoming entangled in fishing gear as they hunted closer to shore, and an algae bloom that shut down crabbing and clamming.

“Given the magnitude of what we saw last time, we want to know if this evolves on a similar path,” said Chris Harvey, a research scientist at the Northwest Fisheries Science Center.
NOAA Fisheries said the water has reached temperatures more than 5 degrees Fahrenheit above average. It remains to be seen whether this heat wave dissipates more quickly than the last one, the agency said.
Scientists dubbed the last West Coast heat wave “the blob.”
The new heave has emerged over the last few months, growing in a similar pattern in the same area. It’s the second-most widespread heatwave in the northern Pacific Ocean in the last 40 years, after “the blob.”
“It’s on a trajectory to be as strong as the prior event,” said Andrew Leising, a research scientist at NOAA Fisheries’ Southwest Fisheries Science Ce...

Source: TIME: Science - September 5, 2019 Category: Science Authors: GENE JOHNSON / AP Tags: Uncategorized climate onetime Source Type: news