Rack 1 – Levington Marina, Suffolk Coast End view of small rack showing growth of kelp which has appeared within a month. Water temperatures had risen from 6°c at the end of March to 13°c at the end of April.
The rack below contains 27 different crevice corrosion samples and impact charpy test pieces. The growth of weed is strange as it is mainly one sided even though the rack is suspended in open water underneath a walk way. However the water flow may greater on the far side of the rack where it is outside the influence of the walk way support posts. This marina is open to the main river and will have fresh nutrients on every tide change.
This marina is located closer to the open sea but the water is only refreshed when the lock gates are opened to allow movement of yachts.The weed growth on this rack is completely different with a fine red coloured sea weed. We would welcome the views of any Marine Biologists as to the difference in growth rates and species of weed that has appeared.
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