PHYSICO-CHEMICAL LIMITATIVE FACTORS FOR GROWTH AND DEVELOPMENT IN STERLET (ACIPENSER RUTHENUS LINNAEUS, 1758) IN EXTENSIVELY SYSTEM
Keywords:
aquaculture, pond, sturgeons, sterletAbstract
The oldest and most common method of increasing fish is a fish breeding ponds in
which the supervision of nutrition and growth of biological material. Sterlet
(Acipenser ruthenus ruthenus Linnaeus 1785) is the 4th of sturgeon scale and
economic importance as a share of production of these fish .Monitoring of physicochemical parameters of sturgeons ponds has a crucial role to obtain satisfactory
yields both in qualitative and quantitative. Chemical characteristics of water were
determined in laboratory ecosystems Chemistry of the Institute of Research and
Development for Ecology Aquaculture, Fisheries and Aquaculture Galaţi for the
samples have been taken of the total water. Determination of the chemical
characteristics was performed by standardized methods. Physic-chemical
parameters of water were determined according to norm on the classification of
surface water quality in order to establish the ecological status of water (Order no.
161/2006), for Class II of quality
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