Hello, sorry for the very late blog update. I’ve been in lab for the past 13 hours and have just finished collecting my first set of data! In the past few weeks I have been trying various experimental setups and finally decided on a 1.8 inner diameter siphon with a siphon flow of ~2.1 mL/s.Yesterday I incubated groups of 50 Acartia tonsa in various treatments, totaling 400 copepods total. I spent the entire morning picking them from our plankton tow and I think I am getting both faster at picking them and better at distinguishing between adults and late copepodite stages. I incubated the Acartia in a 5 µL/L concentration of crude oil, a 5 µL/L crude oil and 0.25 µL/L dispersant mixture (at a 20:1 ratio), at a 0.25 µL/L concentration of dispersant alone, and a control of filtered sea water. Each treatment was repeated twice and all were incubated for 24 hours. Unfortunately, I had to do the majority of the trials alone today and fumbled a bit with getting the siphon and pump to maintain a constant water level. It was also quite a challenge to start both the siphon and pump while immediately hitting the record button after. So far, I can only say that the treatments with either crude oil or dispersant had fairly similar and large mortality rates. It is now 10:10 pm and I have not eaten since noon so I will be going now! Thanks for reading!