THEORETICAL FOUNDATIONS OF FISH FARMING - I.M. Sherman - 2011

4. THEORETICAL FOUNDATIONS OF FISH REARING UNDER VARIOUS CONDITIONS

4.4. Theoretical foundations of intensive aquaculture

Modern fish farming technology focuses on the rational use of Water bodies and optimal resource concentration per unit of area or water volume to maximize the yield of high-quality fish. At the same time, the environmental component implies sufficient production profitability along with other parameters integral to production economics. The formulated concept of intensive aquaculture involves a fairly high stocking density per unit of feeding area, or per unit of water volume in industrial fish farming. Consequently, it is logical to assume that a high stocking density under specific conditions characterized by appropriate technological processes will ensure an adequate number of individuals. It is assumed that the yield of marketable fish from the stocked planting material will reach a specific number. Provided that the average standard weight of a single marketable fish is achieved, the corresponding fish productivity initially embedded in production targets will be ensured. The components for achieving high fish productivity through a justified level of intensification include stocking density (ind./ha), survival rate (%), and average weight (g).

Based on the foregoing, it is clear that a justified level of intensification—grounded in the understanding of the PHYSIOLOGICAL AND BIOCHEMICAL reactions of fish organisms and their dependence on environmental parameters—requires specialists to have a solid theoretical Background regarding The impact of intensification components and to make informed choices regarding the Qualitative and quantitative aspects of intensive aquaculture in fish farming.

As noted above, a hallmark of intensification is an increase in stocking density. Simultaneously, to determine the optimal stocking density for specific conditions and the feasibility of establishing such a density, one must first determine the components through which optimal fish productivity will be achieved.

Modern intensification Methods must account for specific factors and be based on interspecific and intraspecific relationships among fish, particularly feeding relationships, which form The basis of artificial ichthyocenoses. This principle is an objective prerequisite when establishing stocking densities, determining the quantitative and qualitative parameters of each species' diet, and Setting The ratio of individual fish species within a polyculture. From this, it becomes evident that applying modern intensive technologies in aquaculture and fish farming directly is possible only with a deep understanding of the processes that determine product formation within an artificial ichthyocenosis—one with a limited number of species and focused on transforming bioresources into the food Base of the cultivated fish species.

Given the above, it is appropriate to emphasize and focus on examining the components that allow for an objective Assessment of the potential for increasing fish biomass in intensive aquaculture.

In summary, existing intensification methods must, on the one hand, coincide in time and space with periods when growth potential is maximally realized under given conditions. On the other hand, it is necessary to monitor the population and biomass dynamics of forage hydrobionts—the primary wholesome food for fish—and thereby rationally utilize the relevant components of complete intensification. This proposed orientation will achieve high fish productivity combined with superior product quality at a minimal cost for intensification measures.

By rationally dosing the components of intensification, it is possible to obtain products with significant environmental advantages, while the intensification process itself remains well-balanced, resource-efficient, and energy-saving—qualities of paramount importance in today's environment.