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Port Townsend Marine Science Center Orca Project

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Port Townsend Marine Science Center. Orca Project. History. Photo by Kelly Balcom -Bartok. History. Photo by Kelly Balcom -Bartok. History. - PowerPoint PPT Presentation

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Page 1: Port Townsend  Marine Science Center

Port Townsend Marine Science Center

Orca Project

Page 2: Port Townsend  Marine Science Center

History

Photo by Kelly Balcom-Bartok

In 2002, the body of a female orca (CA189) was found stranded

near Dungeness Spit.

There were no obvious signs of why the orca

died.

It was discovered that the female's body carried one of the

highest loads of toxic chemicals ever tested.

Page 3: Port Townsend  Marine Science Center

History

Photo by Kelly Balcom-Bartok

A necropsy was done, tissue samples were

taken, the blubber and flesh were removed

from the body.

The remaining skeleton was covered with manure in a cow

pasture in Sequim.

The Orca skeleton lay there, undisturbed by humans, for six years.

Page 4: Port Townsend  Marine Science Center

HistoryIn 2008, a visitor to the PTMSC casually mentioned the skeleton, wondering whether anyone had claimed it. Questions, emails and correspondence with NOAA bounced back and forth until the PTMSC were given a long term loan of the skeleton for use in education.

In May, 2008, PTMSC staff and an AmeriCorps team joined a group of scientists and volunteers on the Sequim farm. The skeleton lay inside a bright orange net, covered with a thick growth of nettles and lush grass. The skeleton was carefully uncovered, the bones labeled and tagged and then loaded on a truck bound for the NOAA lab in Seattle. There the bones were cataloged, soaked and cleaned of the cartilage and dried tissue that still remained.

Page 5: Port Townsend  Marine Science Center

HistoryIn March, 2009, the PTMSC received the bones, and the real work began.

Page 6: Port Townsend  Marine Science Center

Bone Atlas

Page 7: Port Townsend  Marine Science Center

Dimensioning

Page 8: Port Townsend  Marine Science Center

Dimensioning

Page 9: Port Townsend  Marine Science Center

Dimensioning – CAT Scan of “Hand”

Page 10: Port Townsend  Marine Science Center

Assembly based on CAT Scan

Page 11: Port Townsend  Marine Science Center

Skull without teeth

Page 12: Port Townsend  Marine Science Center

Skull with dentures

Page 13: Port Townsend  Marine Science Center

Lower jaw with dentures

Page 14: Port Townsend  Marine Science Center

Parts

Page 15: Port Townsend  Marine Science Center

Parts

Page 16: Port Townsend  Marine Science Center

Rib cage and part of lower spine

Page 17: Port Townsend  Marine Science Center

Rib cage and part of lower spine

Page 18: Port Townsend  Marine Science Center

Lower spine with armature

Page 19: Port Townsend  Marine Science Center

“cartilage” close up

Page 20: Port Townsend  Marine Science Center

Base of spine

Page 21: Port Townsend  Marine Science Center

Sternum and ribs

Page 22: Port Townsend  Marine Science Center

Sternum, no “cartilage” yet

Page 23: Port Townsend  Marine Science Center

Guess this in one try, it’s easy!(hint: look at the pelt)