Mean concentration of photosynthetic pigments (n = 5) in <i>U. prolifera</i> and <i>U. intestinalis</i>, measured under different culture treatments: <i>pre-bloom</i>, <i>bloom</i>, and <i>post-bloom</i>.

<p>Samples were collected after short-term (24 h) and long-term (7 d) culture. Values are means (±SD). Data are mg/fresh weight (g) (mg/g FW) for each pigment, and different superscripts indicate significantly different values (<i>P</i><0.05), as determined by post-hoc comparison.