“Don’t particles just sink?” This query was raised by a non-oceanographer upon hearing about a class I teach at Texas A&M on the transport of particles from the sea surface to the sea floor. Although many particles do sink, their pathway to the sea floor is seldom direct, and most of them never complete the journey.

Gardner, W.D. 1997. The flux of particles to the deep sea: Methods, measurements, and mechanisms. Oceanography 10(3):116–121, https://doi.org/10.5670/oceanog.1997.03.

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