Effect of salinity on filtration rates of mussels Mytilus edulis with special emphasis on dwarfed mussels from the low-saline Central Baltic Sea

Table 3 Mytilus edulis (Askö)

#	n	T (°C)	L (mm)	W (mg)	CI (mg cm⁻³)	F (ml min⁻¹)	G (cm²)	F/G (mm s⁻¹)
1	26	8.5 ± 0.1	11.3 ± 0.6	4.9 ± 1.5	3.4 ± 1.1	2.3 ± 1.6	1.1 ± 0.3	0.35
2	29	8.3 ± 0.2	13.3 ± 0.5	8.0 ± 2.2	3.4 ± 1.9	3.0 ± 2.0	1.6 ± 0.2	0.32
3	29	8.3 ± 0.2	15.0 ± 0.6	10.1 ± 3.0	3.0 ± 0.9	4.2 ± 3.3	2.4 ± 0.6	0.30
4	22	8.2 ± 0.1	16.9 ± 0.5	13.2 ± 7.5	2.7 ± 1.4	4.5 ± 3.1	2.8 ± 0.4	0.27
5	22	8.4 ± 0.4	19.2 ± 0.6	19.6 ± 5.6	2.8 ± 0.8	7.4 ± 1.1	3.9 ± 0.4	0.32
6	19	8.5 ± 0.0	23.9 ± 0.5	49.6 ± 12.4	3.6 ± 0.9	18.6 ± 5.4

Mean individual filtration rate (F), shell length (L), dry weight of soft parts (W), gill area (G), condition index (CI), temperature (T) and F/G-ratio (expressing the approach velocity of water in the direction normal to the gill surface) of 6 size classes (#1 to #6, n = number of mussels) of mussels locally adapted to 6.5 psu at Askö in the Central Baltic Sea. ±SD indicated

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