Shear created by a sinking particle reorients elongated bacteria, reducing non-motile encounter rates by roughly the square of the aspect ratio, while motile bacteria experience focusing or screening depending on the ratio of sinking to swimming speed.
(A1) is given by a limit cycle
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Encounter rates between bacteria and small sinking particles
Shear created by a sinking particle reorients elongated bacteria, reducing non-motile encounter rates by roughly the square of the aspect ratio, while motile bacteria experience focusing or screening depending on the ratio of sinking to swimming speed.