Fouling was investigated on Marathon Kinsale Field Alpha and Bravo platforms in the Celtic Sea between June 1978 and June 1981. In shallow depths, algae dominated, chiefly Polysiphonia brodiaei and Ulva lactuca.
The invertebrates and algae living on two oil platforms off Texas were investigated down to a depth of 21 m. One hundred and one species ofinvertebrates and 16 algal species were documented.