.In Romania, the structure of aquaculture population is dominated by cyprinids, representing almost 85 percent of the total production, followed by trout, perch, pike, catfish and fresh water sturgeons (15 percent). The farming system traditionally used in Romanian aquaculture is extensive or semi-intensive, mainly based on cyprinid policulture rearing in ponds. Currently, most basins are degraded, only in the past few years modernization funds being accessed through the Operational Programme for Fishing. Most of the areas set up for aquaculture are not appropriate for this activity, especially as they have not been adapted to the requirements of an efficient production process. In the past years, cages, located in lakes, have started to be used for the rearing of valuable species, such as sturgeons. There is also increasing interest for the deveopment of recirculating systems, a farm for turbot rearing being under development close to Constanta. 

There are no detailed data available on the production yield per area, but taking into account the total production and total registered aquaculture farms in 2008 (total production 12 496 tonnes and total surface utilized in fish farms 87 471.29 ha) the estimated average production is 142.85 kg/ha. 

In view of practicing marine aquaculture, as well as exploiting natural marine mollusc stocks, 

The main cultured species in Romania are common carp  rainbow trout  and sea trout (Salmo trutta). These species account for 90 percent of the total production. In addition, northern pike (Esox lucius), wels catfish  and, more recently beluga  and sturgeons  are also reared. Currently, marine aquaculture in Romania is at its initial stages, a single mussel farm being registered farming Mediterranean mussel despite the fact that certain studies suggest that there is interest and there are possibilities for developing this sub-sector.

Romanian aquaculture is still based on the semi-extensive culture of common carp along with the Chinese carps accounting for more than 75 percent of the total production. Carps accounts for 30 percent of production, the crucian carp reaching 10 percent of the domestic production. Even though sturgeons are not mentioned in this statistics, bearing in mind the fact that caviar farms are currently starting out to develop and the population quotas of the Danube are given in different statistics. All reared species are freshwater species; marine aquaculture in Romania is at its initial stages, in spite of the 250 km long marine coast. 

The rearing tanks are the classical water flow tanks used in trout farms and earth basins (stews or ponds) for cyprinids; aquaculture in floating cages or recirculating systems has started only in the past few years, by accessing European funding through the Operational Programme for Fishing. 

It is importatnt to underline the fact that, out of the 140 projects financed through the Operational Program for Fishing, amounting approximately. EUR 100 million, 107 aim at developing/restructuring/modernizing aquaculture farms and processing plants, which are the key for success in future aquaculture development in Romania. Among all these projects, only one is dedicated to marine aquaculture (turbot rearing in recirculating system). 

The main aquaculture practices are extensive or semi-extensive fish farming.

In Romania, there are over 500 fish farms, covering a total surface of approximately 80 000 ha, plus a 400 vessel fleet (mainly for inland waters). Nevertheless, local producers are small sized, with the internal fish production covering less than 20 percent of the total fish consumption in Romania.