Fluorometer Controlled Apparatus Designed for Long-Duration Algal-Feeding Experiments and Environmental Effect Studies with Mussels
Figure 3
Test of fluorometer controlled apparatus (FCA). (a) Two examples of exponential decrease in algal concentration ( = around 40,000 cells mL−1) in experimental aquarium ( L) caused by flow-through of biofiltrated seawater (□, 2.1 and ◯, 1.2 L h−1) diluting the algal concentration measured by fluorescence. The slopes of the regression lines in the semi-ln plot express the flow-through rate, compare (1). (b) Exponential decrease in algal concentration in aquarium caused only by filtering mussels (mean ± S.D., shell length = mm). The algal concentration was measured using both an electronic particle counter () and the FCA (□). The slopes of the regression lines express the filtration rate of the mussels (, □ and L h−1), compare (1).
