Vibrio abundance index (VAI) before and after experimental treatments. VAI was calculated as Vibrio CE ml^–1 divided by the total bacterial CE ml^–1) at time zero (zero) and after 24 h treatment. Treatments included no triclosan added (noadd), low triclosan (lowt), and high triclosan (hight). Error bars indicate SEM (n = 3). The VAI for high triclosan was significantly greater than all other treatments and the value at time zero (p < 0.01). DOI: https://doi.org/10.1525/elementa.141.f4