Growth and the effect of grading, of turbot in a shallow raceway system
作者： Hans K. Strand , Victor Oiestad
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摘要: Juvenile turbot Scophthalmus maximus (L.), ranging in size from 30 to 407 g were graded into small, large, and unsorted groups a low-water-level raceway system. Water depth was 7 cm. The rearing design proved self-cleaning well suited for ongrowing. Mean initial weights 146.2, 236.1, 162.7 increased 299.1, 465.6 343.1 the respectively during 86 day experiment. corresponding SGRs 0.84, 0.79 0.87% day-1. No positive effect of grading on biomass production revealed. coefficient variance gave no indication social interactions, but plotting start against estimated individuals did, although minor.
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