Topics include the advantages and disadvantages of chemotactic foraging in turbulent water by bacteria. The authors note the indispensable role that bacteria play in marine biogeochemistry via the recycling dissolved organic matter. Topics include the ability of motile species to exploit small, ephemeral solute patches through chemotaxis and thereby gain a fitness advantage over nonmotile competitors, the notion that turbulence is inconsequential for bacterial uptake, and the authors' experiments showing how turbulence affects uptake. Also discussed is the link between chemotactic motility, the uptake benefits of chemotaxis, and the cost of locomotion, which results in an optimal swimming speed.