Identification Guide of Freshwater Macroinvertebrates of Spain formatIsbn:Softcover 9789401780865 Various behavior equivalences between agents formatIsbn:Softcover 9783322981196 Various behavior equivalences between agents introduced during the last two decades The study and analysis of the ecological status of these ecosystems in relation to their conservation status and water quality is thus a fundamental tool for a more efficient and rational management of their resources a working tool explicitly designed to facilitate the identification of the Spanish macroinvertebrates and the subsequent computing of biotic indices