Photo of the Week

We are excited to bring back our Photo of the Week section so stay tuned for new content coming soon! In the meantime, take a look at these fantastic pictures from our teachers.

Catching Plankton and Catching On

June 5, 2017
The CTD’s Niskin bottles trap water at different depths in the ocean for a wide-range of data.

Photo: Sam Northern

During the vertical CTD cast, I am in charge of collecting water samples from specified Niskin bottles on the rosette. The Niskin bottles collected water at different levels: surface water, maximum depth, and the chlorophyll maximum where the greatest amount of plankton are usually found. I take the collected seawater to the lab where a mechanism filters the water, leaving only the remainder plankton. The plankton from the water contains chlorophyll which a lab back on land tests to determine the amount of chlorophyll at different water depths. This gives researchers insight about the marine environment in certain geographic locations at certain times of the year.
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21 photos for Gunter · Clear

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