Biological impacts of 2006 hypoxia event, Cape Perpetua, August 21,2006
Underwater cameras deployed by ODFW and PISCO on August 21,2006 revealed a surprising amount of dead animals decaying on the seafloor. Scientists believe that low oxygen conditions killed many marine organisms that could not escape from the water. In addition, no live fish were seen which was unusual for this location.
Downloadable Digital Video (Time: 0:41, file size:17.6MB)
Archive Video (Time: 0:41, file size: 296KB)
The 2006 hypoxia event resulted in bacterial mats covering parts of the ocean floor.
The 2006 hypoxia event resulted in an unusual amount of dead organic material on the sea floor. The presence of so much dead material allowed an upsurge in the growth of specialized bacteria that thrive under low oxygen conditions. This video shows grayish bacterial mats surrounding the crab shells.
Downloadable Digital Video (Time: 0:56, file size: 24MB)
Archive Video (Time: 0:56, file size: 430KB)
Surprising first pictures from the 2006 dead zone reveal large amounts of dead sea life
ODFW and PISCO deployed an underwater submersible on August 8, 20006 to see the effects of the low oxygen event on marine life. Researchers found no live fish or live crabs and were surprised by the amount of dead animals on the ocean floor.
Downloadable Digital Video (Time: 0:37, file size: 15.9MB)
Archive Video (Time: 0:37, file size: 367 KB)
Normal ocean conditions show live rockfish
ODFW’s annual survey of Cape Perpetua shows numerous live rockfish inhabiting the rocky reef under normal ocean conditions.
Downloadable Digital Video (Time: 0:37, file size: 19.2MB)
Archive Video (Time: 0:37, file size: 417KB)
Normal ocean conditions show wolf eel on Cape Perpetua reef
ODFW’s annual survey of Cape Perpetua shows numerous marine organisms inhabiting the rocky reef under normal ocean conditions.
Normal Digital Video (Time: 0:27, file size: 11.8MB)
Normal Archive Video (Time: 0:27, file size: 261KB)
Full Video (August 2006) (File size: 17.6MB)
Archive Video (Time: 4:58, file size: 2.73 MB)
Full Video (June 2001) (File size: 19.2MB)
Archive Video (Time: 3:22, file size: 1.86 MB)
Scientists Jane Lubchenco and Francis Chan test waters off the Oregon Coast for hypoxic conditions.
Scientists Jane Lubchenco and Francis Chan measure the amount of oxygen in sea water using an instrument called a CTD. Sea water is taken from different depths in the ocean and tested to see how oxygen levels change at various depths. This research cruise was crucial to understanding the low oxygen event of 2006 that occurred off the Oregon coast between Florence and Lincoln Beach.
Full Video (August 2006) (File size: 1.66GB)
Archive Video (Time: 3:10, file size: 13.7MB)
