Cultivating Palmaria palmata - Bord Iascaigh Mhara
Cultivating Palmaria palmata - Bord Iascaigh Mhara
Cultivating Palmaria palmata - Bord Iascaigh Mhara
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supply enhanced growth by about 20% in trials performed at Cartron Point Shellfish (Table 9.3). Trials at MRI<br />
Carna Laboratories showed good yields in September, when the increase in biomass over 14 days was 25% and<br />
50% using raw seawater and the effluent from wrasse tanks, respectively.<br />
Table 9.2 Growth of <strong>Palmaria</strong> in tanks at QUB Protaferry. The increase of biomass in % calculated for a period of 14 days<br />
is shown.<br />
Stocking densities<br />
Date T1 1.3 kg m -2 T2 0.78 kg m -2 T3 1.82 kg m -2<br />
20.08.10 87.91<br />
03.09.10 96.54 126.47<br />
17.09.10 69.89 105.52 111.65<br />
06.10.10 54.16 65.66 73.62<br />
28.10.10 40.00 33.38 0.50<br />
04.11.10 2.25 17.67 29.29<br />
17.11.10 13.02 21.01 50.80<br />
02.12.10 14.57 7.53 -2.42<br />
Table 9.3 Yield of <strong>Palmaria</strong> cultivated in tanks at DOMMRS and Cartron Point Shellfish Ltd. (stocking densities: 3.6 kg m -2<br />
at DOMMRS and 1.8 kg m -2 at Cartron Point Shellfish: nutr. = nutrient application as slow release fertiliser).<br />
% increase 14 d -1<br />
DOMMRS Cartron Point Shellfish<br />
Date TANK1 + nutr TANK 2 TANK1 + nutr TANK 2<br />
01/11/2010 36.50 35.50 49.88 0.00<br />
08/11/2010 32.00 30.85 44.80 27.30<br />
15/11/2010 22.50 28.00 42.00 27.00<br />
22/11/2010 17.00 19.00 40.00 6.00<br />
30/11/2010 23.92 28.00 31.50 8.75<br />
13/12/2010 33.15 35.05<br />
59
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