Niskin bottle

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Nis·kin bottle

A Nansen bottle that is made of plastic to prevent corrosion.

[After Shale J. Niskin (1926-1988), American oceanographer who invented it.]
References in periodicals archive ?
Water samples were collected using a 5-L Niskin bottle at a depth of 2 m because of greater biomass in the surface water.
Twenty-one water samples from depth and surface were collected on three separate days by lowering a niskin bottle on a line at three coordinates along a South to North transect.
Chan's most important instruments include a Niskin bottle, which traps salt water beneath the surface in a canister and is then hauled back to the boat.