Four trials were conducted, each lasting four weeks. Chondrus
was cultivated in both December 2009 (6 ± 2 °C) and June 2010
(13 ± 2 °C) and Palmaria was cultivated in both March (6 ± 2 °C)
and July 2010 (16 ± 1 °C). The experimental units were fifteen white
plastic tanks (each 50 L vol.; 0.25 m2 × 0.2 m deep) arranged in three