Figure 2

Nitrate reductase (NR) and Carbonic anhydrase (CA) activities of juvenile Macrocystis sporophytes from Las Docas and El Tabo incubated for three weeks (Experimental trial I and II) under three temperature (12, 16 and 20 °C) and two pCO2 treatments (~ 400 and 1200 µatm). Box-plots showing median size (line within box), 25th and 75th percentiles (ends of box), and minimum and maximum distribution of the data (whisker).