Taxa richness and distribution of dominant species along the estuarine gradient.

<p>(A) Total phytoplankton richness. (B) Relative abundances of dominant taxa (accounting for >10% of total phytoplankton in at least one sample) at the surface (top) and depth (down). <i>A. glacialis</i>  =  <i>Asterionellopsis glacialis</i>, <i>B.brockmanni</i>  =  <i>Brockmanniella brockmannii</i> and <i>R.imbricata</i>  =  <i>Rhizosolenia imbricata.</i> Blue dots indicate sampling points analyzed by both microscopy and clone library approaches (referred to as VIRE River, ESTUARY and BAY).</p>