I returned last month from another trip to Trinidad to set up an experiment that will require me to return two more times at least. I set up a transplant experiment, where we moved fish from sites with predators to sites without. The goal is to see how fish respond in terms of growth and survival to being transplanted. Essentially my main question here is: Do fish with larger brains survive and grow better than fish with smaller brains when moved to new sites? I will also compare the growth and survival of the fish that were moved to the fish that are already at the transplant sites. I will be returning in March and May to recapture marked fish. I'm excited about this project and hope it works! We will find out when I return in March whether or not our transplanted fish fled these sites. This work will help determine the drivers of brain size variation in this population of fish and potentially reveal benefits of evolving larger brains. Below you'll find some pictures from my January trip.
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AuthorKaitlyn Howell Archives
October 2022
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