Physiological parameters (mean ± SD) of mussel (Mytilusgalloprovincialis) seed from subtidal and intertidal origins.

The table shows the initial values of the energy balance and the physiological parameters obtained after 5 months of maintenance the laboratory to select the individuals with slow (S) and fast (F) growth rates. The physiological measurements included the clearance rate (CR; OW:organic weight), ingestion rate (IR), absorption efficiency (AE) and absorption rate (AR), respiration rate (VO2), ammonia excretion rate (VNH4-N) and Scope for Growth (SFG). Physiological rates were expressed as mass-specific rates (YSPC) in mg of organic weight (OW).