Finally, that update to the rest of the work done this go-round in Trinidad. The project I was there to assist with seemed to be successful so far. Three predators were successfully introduced into three experimental pools in Arima RO (RO= rivulus only). Barriers were built to keep predators and rivulus from moving downstream. The sites will be revisited in a few months to follow up with the experiment. The experiment is looking at how predation affects the evolution of brain and eye size in the Rivulus. Pictures are below; credit to Shannon Beston for some of the photos. Also, I'm officially one week into my time as a PhD student!
0 Comments
Hello from Trinidad!
The past five days I've been back in Trinidad helping to do more rivulus (killifish) field work in freshwater streams. More mark/recapture work is involved again but Shannon's (fellow Walsh lab PhD student) project is testing brain/eye size changes over time in pools where predatory fish will be introduced. I've assisted with catching fish at night (as that's when they are most active), processing them (weigh, measure, mark, photograph), and some boldness assays with a subset of the fish. I have five days left here, one of which is hopefully a nice beach day! I will update after I return to the States, pictures and all. |
AuthorKaitlyn Howell Archives
October 2022
Categories |