Niskin Bottle

A Niskin Bottle is a specialized container used by scientists to collect water samples from specific depths in oceans or lakes. It is a cylindrical, sealed tube that can be lowered into the water and then closed at the desired depth, capturing water without contamination or mixing from other layers. This allows researchers to analyze water quality, temperature, chemical composition, and microorganisms directly from precise locations in the water column, helping us understand marine environments and their health more accurately.