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  • Kevin Johnson in the Fish Hut checking and collecting Pteropods from the conical plankton nets. Pteropods are a key species in the food chain, and are in danger because their shell is showing signs of thinning and erosion caused by increase ocean acidification from excess carbon dioxide being absorbed by the southern ocean.
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  • Kevin piloting the Piston Bully
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  • At this stage the pteropods are about the size of a grain of sand, but will grow to be about 1/4" (6mm)
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  • Kevin Johnson sorting Pteropods into containers for transport back to Crary Lab
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  • Kevin Johnson sorting Pteropods into containers for transport back to Crary Lab
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  • Kevin Johnson, Juliet Wong and Umi Hoshijima in the Crary aquarium at the tank where they are exposing pteropods to water acid levels expected in the not distant future.
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  • Lab technician Cailan Sugano working in Crary Lab testing water samples
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  • Crary Lab aquarium and one of B-134's experiments
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  • Riding in the Piston Bully out on McMurdo Sound. B-134 (B for biology) has two current projects exploring the impacts of ocean acidification on calcification-dependent marine invertebrates (creatures with shells) while framing the experiments with oceanographic sensor data. The study organisms are the pteropod, Limacina helicina antarctica and the sea urchin Sterechinus neumayeri.
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  • This Weddell seal makes regular visits to the Fish Hut to breath. When she surfaces she really blows some air, enough to blow your hair back.
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  • The team is finding pitting and erosion of the Pteropod shells from the decrease of the ocean PH level from absorbing more carbon dioxide. This could endanger this key food web species which provides up to 80% of the food for fish, which both penguins and seals rely on as primary food sources.
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  • Umi hanging with the resident Weddell seal
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  • Ice Road on McMurdo Sound back to McMurdo Station
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  • Zen Weddell seal
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  • Lab technician Cailan Sugano working in Crary Lab testing water samples
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  • #3 "Fish Hut" that serves as shelter for collecting Pteropods
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  • Kevin and Umi Hoshijima in the Fish Hut checking and collecting Pteropods from the conical plankton nets
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  • Approaching Palmer Station after a 4 day crossing of the Drake Passage. This photo essay of Palmer Station was photographed over 6 days in late October, 2017, as part of the National Science Foundation's Antarctic Artist and Writers program.
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  • Icebreaker LMG moored in Punta Arenas the night before we left for Palmer Station in Antarctica. I traveled to Antarctica as a photographer with the National Science Foundation's Antarctic Artist and Writers Program.
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Portraits of Place - Photographs by Shaun O'Boyle

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