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20,000 mm under the sea: sponges filter the reef

This Skype lesson ended on 17 Sep 2014.

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This class will be taught from the bottom of the ocean from the world's only underwater laboratory, Aquarius. located 60 feet (20 m) deep and 9 miles (14 km) offshore in the Florida Keys. Sponges have been on planet Ocean longer than other forms of macroscopic life. A typical barrel sponge moves and filters more than 70 tons of water per day. How can such a creature with microscopic moving parts move a mass equal to 70 automobiles? What are sponges filtering out of the water and why? At Conch Reef in Florida where the Aquarius underwater laboratory is located, researchers have uncovered a host of exciting secrets about how sponges work. By performing experiments on the sponges where they live, scientists now know what they are eating, how they defend themselves against getting eaten by other creatures, how they affect water quality on the reef, and how old they get (which is really really old.....hundreds of years in some cases!).

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Avatar of HS Technology & Business
HS Technology & Business said on the 05 Sep 00:38
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Hello Mr. Patterson,
We would be interested in October, if possible. I have 2 high school Career Investigation classes that would love to hear about your career path. We would be available between 12:15 -12:45 ET and 12:55-12:25 ET. Thank you!

Avatar of Mrs. Constants
Mrs. Constants said on the 27 Apr 19:43
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Is this still a possibility? I would like to set up a session for some time during the week of May 12.

Avatar of PialiGanguly
PialiGanguly said on the 18 Jan 14:45
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Hello Mr. Park Patterson,
I am Piali Gnaguly from Birla High School (Jr. Sec.), in Kolkata, India. Ours is a day school between 8:30 to 13:30 as per our timezone (GMT+5:30). We have children between 6-10 years age group. Can we arrange for a session in between this timing? We'd love to hear from you.
Warm regards,
Piali Ganguly

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