Behaviour 2019
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UVB light impacts flow sensing behaviors in Xenopus laevis tadpoles
Andrea Simmons1, Emilia Dell'Antonio1, Reese Fry1, Violet Sackett1. 1Brown University, Providence, Rhode Island, United States; 2Brown University, Providence, Rhode Island, United States; 3Brown University, Providence, Rhode Island, United States; 4Brown University, Providence, Rhode Island, United States

As part of an undergraduate CURE course at Brown University, we devised a novel research project examining the impact of environmental light on flow sensing behaviors in Xenopus laevis tadpoles.  Our project included two novel manipulations.  First, we compared the effects of UVB and LED light on precision of rheotaxis; second, we asked if tadpoles would school in response to flow.  Tadpoles in the UVB group were less likely than those in the LED group to orient towards the source of the flow and were more likely to show wall-hugging behaviors.  Schooling was not observed in either light condition.  Lateral line neuromasts remained structurally intact after exposure to UVB light.  We conclude that UVB exposure affects flow sensing behaviors in developing Xenopus.  Research supported by HHMI grant to Brown University.