Biological Oceanography student Shana Carmichael readies a Niskin bottle to show Open House visitors how scientists use it to collect water at different depths in the ocean. The bottles are arranged in a carousel on a CTD instrument like the one shown below (and modeled here). Scientists lower the instrument to the depth of interest in the ocean, then send down a “messenger” weight that triggers the bottle to close at both ends. Each bottle can be filled with water from a different layer of the ocean, allowing scientists to sample oxygen, nutrients, plankton and other water components across a range of depths. Come to Open House to see a nifty Niskin for yourself!
- Welcome! Drop-in to the "real-life tales" of graduate students at the Moss Landing Marine Laboratories in California, and find out what being a marine biologist (or chemist or geologist or physicist...) is all about! Questions or comments? We'd love to hear from you: firstname.lastname@example.org
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