Emma Forbes Update: Understanding Bacteria at OI

Figure 1. Culture of bacteria (Pseudomonas sp.??) on marine agar isolated from larval rearing tanks at OI.Aloha everyone!It’s been a while since my last post, but it’s been a busy few months. Though it's the kind of busy you don't realize until you sit down and catch your breath. It’s been a lot of fun spending my days in the lab working with everyone learning new things. Figure 2. Sample of Parvocalanus nauplii on TCBS agar that was fed to yellow tang larvae. Since we are still observing relatively high mortality just past first feeding, my work at the Oceanic Institute is focused on bacterial population analysis and application of probiotics to our yellow tang larval rearing tanks. The first month of summer was spent looking at the growth of our live feeds with the addition of probiotics, which appear to have no effect on their survival or growth. This is great news for us

One small step….Pacific Blue tang update

Figure.  17 day post hatch Pacific blue tang larva.  Credit: Kevin Barden. The newly revamped larval rearing room has been up and running since early May.  In truth, there are still a few things we’d like to add to the filtration system, but that hasn’t stopped us from stocking eggs into the system as we get them.  One of the first larval rearing attempts was performed with Pacific Blue tangs.  We got roughly 4000 eggs; which we then stocked into a 210 liter tank (55 gallons).Â