Water quality (2) Water (2) Solids (2) Sheep (2) Salts (2) Quality of products (2) Oxygen (2) Maroons (2) Droughts (2) Agua--Calidad (2) Oxígeno (2) Cimarrones (2) Estudio (2) Calidad (2) Sales (2) Ganado ovino (2) Sólidos (2) Agua (2) Sequía (2) boisson (2) Social sciences (1) Ciencias sociales (1)