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In recent years, the scientic study of complexity in ecological systems,including lakes,  has increased the understanding of a broad range of phenomena, such as diversity, abundance, and hierarchical structure. As result different approximations are developed.... developed to find a formal measure to represent the ecological complexity as ecological indicator (Parrot). The advantage of an complexity indicator in ecostytems is the posibility of relation with ecological integrity, diversity and/or resilience, for example. Relation with the spatial and temporal scales, with the structure and function as well are desired (Parrot).  Aspects of study:Relations of EC with ecological integrity, diversity and resilience   EC ( General) Information Theory  as ecological Indicator: Exploration of its potential useful. Description of spatial, temporal, structural or spatial temporal signatures of an ecosystems.) the base for EC formulation.  In spite of the valuable efforts carried out in order to understanding, clarigy and measuring complexity in ecological systemas, more explorations are requiered. Boarding complexity aspects in ecology, it is important to consider that ecological systems exhibit properties like emergence, self-organization, and life. Lake dynamics generate novel information from the relevant interactions among components. Interactions determine the future of systems and its complex behavior. Novel information limits predictability, as it is not included in initial or boundary conditions. It can be said that this novel information is emergent since it is not in the components, but produced by their interactions. Interactions can also be used by components to self-organize, i.e. produce a global pattern from local dynamics. Interactions are one the most important reason for complexity generation.