Limnotek specializes in the analysis of links between physico-chemical attributes in aquatic ecosystems and biological communities including algae, invertebrates, and fish. We show the importance of things that are changed by a resource development compared to habitat conditions that are not related to resource development in affecting valued ecosystem components. This distinction is essential information for determining the actual effect of a disturbance and how it may be mitigated. For example if a disturbance causes a change in flow over some range, we determine if that change in flow is actually important in affecting a VEC before decisions about mitigation are made. This work involves study design, sampling and measurements in the field, data analysis and modeling, reporting, and decision support. Analysis of future conditions is done using simulation or statistical modeling that uses relationships from analysis of existing conditions and evidence from the scientific literature to model change in aquatic ecosystems according to modified water management and water quality scenarios. Study findings are used to show clients potential ecological consequences of their decisions about a change in flow, pollutant discharge, water diversion, and other water management actions. Knowledge of those consequences provides clients with a powerful science-based approach to making decisions on water management and mitigation of effects from resource developments.