SUSPENSION CULTURE OF THE GREAT SCALLOP PECTEN MAXIMUS IN GALICIA, NW SPAIN—INTERMEDIATE PRIMARY CULTURE OF HATCHERY PRODUCED SPAT

摘要: Abstract A technique for growing small P. maximus spat in suspension culture from rafts is described. Hatchery produced of initial size 3.0- and 4.3-mm shell height were transferred to a sea-based primary nursery system May. Scallop (3.0 mm) grew 16.8 ± 3.0 mm during 85 days. Survival was 70.0 8.1%, but decreased due presence predators 33.4% the sampling units, between 0 37.4%. Important crabs Atelecyclus undecimlineatus, Liocarcinus arcuatus, Necora puber starfish Asterias rubens. significant negative correlation found rubens arm length survival scallops. Initial affected growth significantly whereas stocking density (50–400 quarter−1 coverage 1% 17%) had effect on growth. Spat 4.3 bigger than after 34 57 days, 96.4 4.4% versus 71.4 12.8% 37 No mortali...