Research

Trophic variability in a pristine lake

gillnetWhat kind of natural trophic variability do we see in the fish community of a large, near-pristine lake?  (When I say “trophic,” I am talking about what organisms eat.)  Scientists often use trophic changes to document other changes in lakes, such as the introduction of species or the effect of anthropogenic nitrogen loading.  I looked at trophic variability in the fish community in a large, near-pristine lake in Mongolia… READ MORE…

Jellyfish ecology in Barnegat Bay

C. quinquecirrhaThe popular media teems with stories about “jellyfish invasions,” but the scientific literature is more ambiguous.  If you ask anyone who spends time in northern Barnegat Bay, NJ, they will tell you that sea nettle jellyfish (Chrysaora quinquecirrha) have invaded the bay. I am studying two elements of the ecology of sea nettles in Barnegat Bay… READ MORE…

Individual trophic specialization in pelagic predators

bait fishing at sunriseA major question in trophic ecology is whether fish have individual diet preferences.  Do some fish prefer to eat crabs, while others prefer to eat fish?  Or are fish more generalist; do they eat whatever comes along?  I used stable isotope, fatty acid and stomach contents data to investigate individual specialization in large pelagic predators in the eastern Pacific …  READ MORE…

Mentored projects

Jess with nettleI have also been lucky to act as a mentor to a number of great students working on awesome projects.  READ MORE…