CTD rosette with Niskin bottles that have fired at various depths on the way to the seafloor during the Illuminating Biodiversity in Deep Waters of Puerto Rico 2022 expedition. Each Niskin is connected by tubing to an elaborate pumping system containing filters that are catching various pieces of organic residue from the water. After filtering, eDNA (or environmental DNA) can be extracted from the filter and later analyzed to better understand marine biodiversity. You could say expedition team member Luke McCartin has this down to a science!
Water Filtration
Image courtesy of Illuminating Biodiversity in Deep Waters of Puerto Rico 2022.
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CTD rosette with Niskin bottles that have fired at various depths on the way to the seafloor during the Illuminating Biodiversity in Deep Waters of Puerto Rico 2022 expedition. Each Niskin is connected by tubing to an elaborate pumping system containing filters that are catching various pieces of organic residue from the water. After filtering, eDNA (or environmental DNA) can be extracted from the filter and later analyzed to better understand marine biodiversity. You could say expedition team member Luke McCartin has this down to a science!