SEASIDE, Ore. -- Authorities are trying to figure out how to get rid of a 40-foot dead and decomposing gray whale that floated onto the beach in Seaside Tuesday.

The whale washed up near the popular Seaside turnaround after originally appearing on the South Jetty at Fort Stevens State Park last Sunday.

Photos:Gray whale on Seaside beach

Witnesses said the smell from the decomposing whale was very nasty.

When the wind gusts, it's really bad. It's not fun, said Rebecca Sarpola, who lives in Seaside.

A marine biologist will take samples from the whale to try and figure out how it died. Then, the city of Seaside will come up with a plan to bury or remove it from one of the state's busiest beaches.

It doesn't look skinny, it's been dead a long time, said Keith Chandler with the Marine Mammal Stranding Network. So it will be tough to tell what killed it.

Just a month ago, another dead gray whale washed up in Long Beach. That whale was a female, estimated to be about 14 months old. Jessie Huggins with Cascadia Research told KGW the whale appeared to be malnourished and that was the most likely cause of death.

He said samples did not show any evidence of a ship strike or entanglement.

Due to the limited sampling undertaken and because it was already moderately decomposed, we will not be able to test any tissues for disease processes, Huggins added.

Watch YouTube video and interview about Seaside whale here:

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