Place sample tube at bottom of bottle and fill from the bottom
By St. Petersburg Coastal and Marine Science Center
2012 (approx.)
![Photo of a Niskin bottle with the sample tube inserted and the stopper sitting beside it](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/sample-bottle-w-noodle.jpg?itok=kw8-oVMR)
Detailed Description
Place sample tube at bottom of bottle and fill from the bottom.
Sources/Usage
Public Domain.