Oil spill barrier

A barrier member for an oil spill barrier, the barrier member being a first barrier member which is configured for retaining one or more weights when assembled or combined with a second barrier member to form a barrier unit, the first barrier member comprising:

• a first side for facing away from the second barrier member in the barrier unit;
• a second side opposite the first side of the first barrier member for facing towards the second barrier member in the barrier unit, the second side including a central area for abutment to the second barrier member, wherein the second side comprises:
• at least one recessed region for receiving the one or more weights, the at least one recessed region being recessed from the second side in a direction towards the first side relative to a plane of the central area of the second side;
• first and second elongate half-channels being parallel to each other and disposed to opposing sides of the at least one recessed region, at least part of the first elongate half-channel running along or adjacent to a first longitudinal edge of the second side, and at least part of the second elongate half-channel running along or adjacent to a second longitudinal edge of the second side.