BSc Research

Evolution of reproductive accessory glands across fishes

As part of my fourth-year thesis, I explored the evolutionary history of male reproductive accessory glands in fishes. Reproductive accessory glands can play vital roles in male reproductive success, and yet in fishes, very little is known of their form and function. We reconstructed the evolutionary history of these glands and determined that they are strongly correlated with the presence of male parental care, suggesting that parental care may have been a driving force in their evolution. Surprisingly, sperm competition, which was previously assumed to be the primary purpose for accessory glands, seemed to perhaps select against their evolution. Check out our paper on this work, now out in Evolution!

Collaborators: Dr. Sigal Balshine, Dr. Ben Bolker, Dr. John Fitzpatrick, Jessica Miller

Trapping bias in the invasive round goby

In the fourth year of my undergrad, I also tested a potential bias between different trap models when used to capture the invasive round goby (Neogobius melanostomus). Round goby originated in Eastern Europe and the Middle East but have since spread rapidly throughout Western Europe and North America, particularly the Great Lakes region, in some cases having dire consequences on local ecosystems. Sampling gobies using minnow traps is instrumental for monitoring the spread of populations and other research on the species, and yet we determined that significant sampling biases are present depending on the type of minnow trap that is used. Published here!

Collaborators: Dr. Sigal Balshine, Adrienne McLean, Caitlyn Synyshyn