Abstract: A elongated accordion pleated member is provided and includes inner and outer longitudinal sides. The tubular member is composed of individually inflated buoyant side-by-side alternating continuous periphery and brokenn periphery frame-type members and each of the side-by-side members includes internal biasing means tending to bias the pleated tubular member toward an extended position, the broken periphery members opening outwardly of the inner longitudinal side of the tubular member and defining upper water layer and oil inlet openings opening into the interior of the tubular member.