IRSA Taranto CNR
The REMEDIA Life project (REmediation of Marine Environment and Development of Innovative Aquaculture: exploitation of edible/not edible biomass) is an EU-funded project coordinated by the University of Salento and partnered by the Institute of Water Research (IRSA) of the CNR Taranto Branch, the University of Bari 'Aldo Moro' and the aquaculture enterprise 'Maricoltura Mar Grande'.
The project was developed to demonstrate the effectiveness of an Integrated Multitrophic Aquaculture (IMTA) system as a means to mitigate the negative environmental effects in a coastal area of the Mar Grande of Taranto where a mariculture plant is located. The project envisages, for the first time in Europe, the use of an integrated system that, in addition to fish farming, includes a new set of stress-resistant bioremediation organisms such as polychaetes and sponges whose bioremediation performance is more effective than the use of mollusks alone. At the same time, the cultivation of certain macroalgae species, which are generally particularly difficult in the Mediterranean, is tested, and their bioremediation capacity is evaluated.
The project focuses on demonstrating that the innovative system developed can lead to the proper exploitation of waste from fish farming by generating various co-products: in addition to fish, mussels/oysters, polychaete annelids, macroalgae and sponges are obtained in each production cycle. The diversification of production can represent an added value for the company, opening up new markets in relation to the marketing of non-edible biomass, which represents a by-product of high commercial value in a circular economy perspective and in line with the 'BLUE GROWTH' themes.
Biomass could be effectively used to produce biotechnological products including an innovative feed (which can be supplied directly on the farm during the early stages of fish farming), fertilizers and bioactive compounds useful in the pharmaceutical and nutraceutical fields. In addition, polychaetes could be commercialized in the fishing (bait) and aquarium sectors. The implemented multi-trophic aquaculture system also leads to improved rearing performance with reduced risks associated with bacterial contamination of fish products due to the ability of the bioremediators used to break down the various microbial contaminants present in the rearing environment.
Thus, thanks to an ecofriendly management of the enterprise in the short/medium term, a bioremediation of 70% of the water surrounding the mariculture plant is achieved, with a considerable improvement in environmental conditions and a new-found balance of the marine ecosystem.
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