Lizard Island

Lab Note #1
May 20, 2014
Hi all, 

Thank you for sending through your postcard preferences. They will be posted shortly!

We are soon heading off to the Lizard Island Research Station, where I will be testing the unpalatability of nudibranch extracts to Picasso triggerfish (Rhinecanthus aculeatus). It will be interesting to see how the results from this species compare to our other assays.

We will be catching the triggerfish, housing them at the research station, and feeding them freshly made pellets containing nudibranch extracts.  I will determine the concentration necessary for a given extract to become unpalatable to the predator. This will allow me to rank the unpalatability of crude extracts from multiple nudibranch species.

Here are some photos of the process!

Increasing concentrations of the crude extract.

Here is the noodle that we chop into pellets to feed to the fish. I've dyed it red to make it easier for me to see if the fish spits it out.

Please wait...