Fluorometer Controlled Apparatus Designed for Long-Duration Algal-Feeding Experiments and Environmental Effect Studies with Mussels

Table 2

Mytilus edulis. Variation in filtration rates (Δ𝐹) of mussels at different salinity changing rates (Δ𝑆). Experiments were performed at a mean algal concentration (3,770 ± 690 Rhodomonas salina cells mL⁻¹) with three groups of mussels. Number of mussels used in each experiment was 20 and the mean shell length was 29.4 ± 0.4 mm. For further explanation, see Figure 8.

Experiment #	Group #	−Δ𝑆 (psu h^−1)	+Δ𝑆 (psu h^−1)	−Δ𝐹 (mL min^−1 h^−1)	+Δ𝐹 (mL min^−1 h^−1)
I	2	−0.69	—	−1.41	—
II	1	−0.69	0.96	−2.99	4.17
III	1	−2.20	1.82	−2.09	3.17
IV	3	−0.18	0.55	−0.35	2.84