Catch per Unit Effort, Density and Size Distribution of the Oysters Pinctada capensis and Saccostrea cucullata (Class Bivalvea) on Inhaca Island, Southern Mozambique

莫桑比克南部伊尼亚卡岛牡蛎（Pinctada capensis 和 Saccostrea cucullata，双壳纲）的单位捕捞努力量、密度和大小分布