ICSEAF failed its mandate largely because Contracting Parties did not comply with the conservation and management measures they adopted and that the Commission lacked effective compliance and enforcement mechanisms. Fishing efforts increased rapidly during the 1960s and throughout the 1970s and 1980s on targeted species such as hake, horse mackerel and pilchards off Namibia and horse mackerels (Trachurus capensis and T. trecae) and sardinellas (Sardinella aurita and S. maderensis) in southern Angolan waters. For example, in 1965 about 193,000 tonnes of hake were caught mainly off Namibia and by 1972, a peak of 820,000 tonnes was recorded, followed by a declining trend to about 338,000 tonnes landed by 1988.