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Median (solid line), mean (white square), inner quartile and range (box and whiskers) and any outliers to the range (bold filled circles) showing all raw data for flat oyster dredge efficiency by ground type (hard sediments, mid =mix of hard and soft areas, soft sediments) and oyster distribution (evenly or uniformly distributed vs clumped). Data from April only. Dredge efficiency declines with increasing ground softness when oyster distributions are clumped, but increases when evenly/uniformly distributed.
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