Fluorometer Controlled Apparatus Designed for Long-Duration Algal-Feeding Experiments and Environmental Effect Studies with Mussels
Figure 2
Test of fluorometer controlled apparatus (FCA) without mussels maintaining 3 algal (Rhodomonas salina) concentration levels (, ◯) after initial addition of algal cells to the aquarium ( L) to reach cells mL−1 (I) and subsequent two times washout of algal cells with through-flow seawater to reduce the concentration to (II) 4,120 ± 430 and (III) cells mL−1, respectively. The fluorometer controlled addition of R. salina to maintain a constant algal concentration in the aquarium over a certain period of time appears from the total volume (TV) of algal suspension added (■). Between 6 and 9 h a constant through-flow of bio-filtered seawater (200 mL min−1), which is a measure of “filtration rate,” caused an exponential decrease in the algal concentration (●).
