The estimate of natural piscicultural productivity depending of physical-chemical, biological parameter of water.

The research was made during biological year 2006 (March – November), when it was follows the evolution of some physical-chemical parameter and biological from water level, because by those evolution depends the obtaining some much more or small quantity of fish. In that sense, was taked in study 3 fish ponds where its practice systematic fisheries. The species who are growing are: carp (Cyprinio carpio), beside of other asian ciprinidae Hypophtalmycthis molitrix; Ctenopharingodon idella, and an small number by mirror carps, having like final target the calculation of natural piscicultural productivity and reale productivity obtained by ponds