hulls piles, Wharf Vessel Aquaculture pontoons Enclosed equipment systems Desiccation/drawdown P U L P No Various, including Styela clava,9 Successful method; drawdown – – Didemnum vexillum,10 Undaria restricted to enclosed systems pinnatifida5 Heat treatment Hot water baths P No U. pinnatifida5 Successful method – – – – – – Hot water box P L U Yes No < 30 m U. pinnatifida11 Successful method for vessel – – hulls; requires development for natural substrates Steam sterilisation L L Yes No < 30 m U. pinnatifida12 Partially effective; can only treat – – – very small areas attenuation Yes Low Yes Macroalgae Not yet tested in a marine – – – – energy context Salinity modification Fresh water U U P P Yes Low No Caulerpa taxifolia13 Successful provided organisms – energy can be contained Freshwater P No U. pinnatifida5 Successful method – – – – – – Salt treatment U U L U Yes Low < 30 m C. taxifolia14,15,16 Suitable for control; unlikely to – energy be successful for eradication Wrapping/encapsulation P P P Yes Low < 30 m Styela clava,9 D. vexillum,10 Successful method; mortality of – energy Mytilopsis sallei,17 various pests species can be accelerated fouling taxa9 via chemical application Smothering artificial materials (such as PVC, Yes Low < 30 m Various taxa including D. Successful method if integrity of – – – – – matting) energy vexillum,4,10 C. taxifolia,18 smothering structure Spartina anglica19 maintained dredge spoil Yes Low No D. vexillum4 Successful method – – – – – energy
Vessel hulls Wharf piles, pontoons Enclosed systems Aquaculture equipment Desiccation/drawdown P U L P No – – Various, including Styela clava,9 Didemnum vexillum,10 Undaria pinnatifida5 Successful method; drawdown restricted to enclosed systems Heat treatment – Hot water baths – – – P No – – U. pinnatifida5 Successful method – Hot water box P L U – Yes No < 30 m U. pinnatifida11 Successful method for vessel hulls; requires development for natural substrates – Steam sterilisation L L – – Yes No < 30 m U. pinnatifida12 Partially effective; can only treat very small areas attenuation – – – – Yes Low energy Yes Macroalgae Not yet tested in a marine context Salinity modification – Fresh water U U P P Yes Low energy No Caulerpa taxifolia13 Successful provided organisms can be contained – Freshwater – – P – No – – U. pinnatifida5 Successful method – Salt treatment U U L U Yes Low energy < 30 m C. taxifolia14,15,16 Suitable for control; unlikely to be successful for eradication Wrapping/encapsulation P P – P Yes Low energy < 30 m Styela clava,9 D. vexillum,10 Mytilopsis sallei,17 various fouling taxa9 Successful method; mortality of pests species can be accelerated via chemical application Smothering – artificial materials (such as PVC, matting) – – – – Yes Low energy < 30 m Various taxa including D. vexillum,4,10 C. taxifolia,18 Spartina anglica19 Successful method if integrity of smothering structure maintained – dredge spoil – – – – Yes Low energy No D. vexillum4 Successful method
empplan-rapid-response-manual-generic.docx