IMES

IMES

Sunday, April 15, 2018

Cynthia UR The Good The Bad and the Faulty




So, now it’s day five. (04/15/18) We lost power at the Daytona Campus on April 12th for the entire day. Though I looked in all four tanks twice by that time never finding specimens to identify except in the High Bridge sample natural site from Ormond Beach.

The salinity of (a) High Bridge is 30ppt (b) Daytona Beach 26ppt

(c) NSB 37 ppt and (d) Canaveral 38 ppt.  Obviously this is not something I expected and leaves me concerning the simple effects of organisms that will change due to these salinity differences.

I looked again on the 13th with the same result. Each time I pull from High Bridge a new species emerges that sparks my interest again, but the other tans appear to be void of life.  All the tanks have fibrous colored debris of plastics.

This covers the good and the bad, the faulty lies with the process I chose to collect them. I should’ve delved deeper into methods to collect my samples and might have discovered I needed to use a plankton tow method; although, I am not sure how I would’ve pulled it off for all four sites.

 
I believe I have actually identified one of my plankton as a Nitzschia, a type of Diatom, and the individual a sigmoidea.  Admittedly, I cannot make a precise classification without proper magnification and that adds to my frustration.

Here are two more I am still searching for: The first is a Crustacean and the next I believe Cnidarian 
Plant food was added just prior to power going out, algae has began to accumulate at the bottom of all four tanks.



Alas, I will continue this process hoping for some findings within the other tanks in time. I was informed a study is being conducted by 
Bethune Cookman Univ. and perhaps I can find out more on Monday.
In the meantime I have a few pics, most appear blurred because my catches never stay still nor slow down.

1 comment:

  1. Interesting. Yes--we usually do a plankton tow for this type of research. However, it would have been unrealistic for us to take the boat to 4 different locations to do this. SO--we are simply cultivating plankton in the lab in an attempt to increase their concentration--similar to a plankton tow. Cultivating plankton in the lab is a common practice for study since tows are time and money consuming.

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