On Wednesday, we made our final visit to Mata la Gata to collect our mangrove litter traps, which catch falling leaves, flowers, and branches. These traps help measure the organic input into mangrove ecosystems, offering insight into nutrient cycling and ecological productivity. Back at the house, we wrapped up our BRUV video surveys and ended the evening watching the sun set over the cayos that had become our classroom for the past two weeks.
For our last day in La Parguera, we enjoyed our last snorkel, heard from two guest speakers, and ended the night swimming in the glowing waters of Bio Bay. Jaaziel shared his passion for sponges, while Glorimar introduced us to a few of her fascinating shark specimens—an exciting moment for me, since sharks are my main interest. Our visit to Bio Bay was unforgettable. The bay is home to Pyrodinium bahamense, a bioluminescent dinoflagellate that lights up when disturbed—an effect caused by a chemical reaction in the cell that produces a flash of light as a defense mechanism.
As the sun sets on our time here in La Parguera, it is bittersweet. This trip has truly been an unforgettable experience. I have learned so much and am grateful that I was given this amazing opportunity. Until next time Puerto Rico! 👋🌊🩵
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