The Po sc Fishermen Cooperative has been in the fishing and aquaculture sector for the past 30 years. Established on 12 June 1978 with the aim of undertaking and experimenting with traditional and new breeding techniques, it began its activity with a plant for the breeding of catfish in Pineta di Cassella, in the municipality of Porto Tolle (RO). Since 1989, with the development of clam and mussel farming, the members have gone from 12 founders to the current 162. Areas under concession As regards the breeding of mussels, the Cooperative is the concessionaire of a stretch of water in the locality of Sacca di Scardoviari, in the internal maritime state-owned waters. In this concession, plants, called "vivavi", were built for the breeding of edible lamellibranch molluscs (mussels or mussels), managed by the members. It is also the concessionaire of a stretch of water in the open sea of approx. 1,000,000 Breeding techniques As far as breeding techniques are concerned, a distinction must be made between fishing or harvesting of clams and the breeding of mussels. The mussels ( mytilus galloprovincialis ) or mussels, are reared in structures called "nurseries", from which are hung ropes that are used to contain the "braids" containing the product. Each of these nurseries is entrusted to the management of the partner, who takes care of the production. The juveniles are found in their natural state, subject to the authorization of the Ministry of Agriculture.