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Clumped flat oysters post dredge at the next low tide on hard ground (top left) and on softer ground where the dredge marks in the soft sediment can be seen and the oysters are pressed into the sediment. Flat oysters in a uniform 1 m2 density treatment in April over hard ground showing low weed biomass (middle left). Oysters were marked with a yellow sticker at the outset, but due to negligible flat oysters being present at Thirslet creek this was not needed and was stopped. Partially sorted landings on the sorting table after an experimental dredge showing catches of dead shell, rock oyster and flat oyster (middle right). The ladder dredge was fixed with a ring escape mesh of 45 mm diameter (bottom left) and a comparison of the same experimental dredge bed as can be seen in the top and middle-left in April but in September with increased weed biomass (bottom right).
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