Pearson College Marine Science

Second year Marine Science students in C block chose to investigate the effect of colour of light on primary productivity in bull kelp (Nereocystis luetkeana). After wrapping five BOD bottles in each of five colours of cellophane plus five bottles in transparent cellophane and including five black bottles, students filled BOD bottles with seawater and one piece (4 cm x 4 cm) of bull kelp.

They measured dissolved oxygen in each bottle:

then left the bottles on the window sill of the floating lab for 4 to 6 hours:

Then they measured dissolved oxygen again:

The data collected are shown below:

And I have to include this photo of the wall by the stairs in the floating lab taken when students were measuring final oxygen levels:

Tags: Bull kelp, colour, Nereocystis luetkeana, oxygen production method, primary productivity, year 39

This entry was posted on November 21, 2013 at 5:57 pm and is filed under Scientific Data, Student research. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.