Monday, July 8, 2013

Day 19 RET summer training

Day 19

Over the 4 day break Vardhman came to our lab to drop our 3 sensors and we've started collecting real time data on a database he created (pic below). We are collecting data every 8 sec. but eventually we'll receive data every 40 seconds; this would give us a more realistic readings instead of any minute discrepancies from an 8 sec. reading. Vardhman also received a part which allowed him to close the circuit for our 3 sensors. More about that later.

This week we will focus our attention on implementing and testing our 3 controls-- pH dispenser, bubbler (DO), and reservoir for fish tank fill with the expectation of adding disturbances to test whether controls stabilize our tanks environment.

Sharron did us a huge favor and located several clams which we will add to our fish tank to serve as a bioindicator. Basically, clams have been used to test for high concentration of heavy metals (cadmium, copper, zinc, and lead) and fecal pollution in seawater (Salmonella).
http://www.csef.colostate.edu/2011_Abstracts/Milano_Victoria.pdf
http://link.springer.com/article/10.1007%2FBF00284629#page-1
Tissue tests were taken from these two studied species of clams, we of course do not have that technology but we know that when clams close there are environmental conditions that need to be looked at.


Our 3 clams serving as bio indicator




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