AQUALOGUS is performing for EDP (a Portuguese Electricity Company) the Ecological Follow-up of Aquatic Ecosystems of Foz Tua Hydropower Scheme which, among the several studies included, comprehend the evaluation of biologically effective and economically feasible alternatives for fish transposing on large dams, aimed at ensuring river longitudinal continuity for fish communities.

The envisaged solution is based on an approach that gathers an active plan to capture and translocate fishes, with the design of a fixed capture device – Pool Type Fishway with a fish trap on the last basin - directed primarily to migratory species more sensitive to manipulation. The specimens to translocate in both cases will be sent to pre-defined appropriate release sites using a vehicle equipped with an appropriate tank, which ensures the proper amenity and safety conditions.

The solutions developed by AQUALOGUS are part of the technical documentation produced by the Portuguese State to UNESCO, as part of the confirmation by the latter entity, of the compatibility between the Foz Tua dam building and preservation of World Heritage classification assigned to the Alto Douro Wine Region.