METHOD OF DETERMINING TOTAL ALLOWABLE HARVESTING OF FISH Russian patent published in 2014 - IPC A01K61/00 

FIELD: agriculture.

SUBSTANCE: method comprises harvesting of investigated water reservoir with the minnow seine with the factor of catching of no more than 0.2 in the selective and not more than 0.3-0.4 in the nonselective fishery. Then the growth of ichthyomass of surviving fish in age and size-weight classes and the general population for the year is determined, as well as the coefficients of restoration of the ichthyomass of the surviving fish in age and size-weight classes and the general population with the subsequent calculation of the total allowable harvesting of fish on the basis of dependencies: B-Y=By; By×ΔP/B=Py; By+Py=B, where B is initial ichthyomass of fish of different age classes or the general population, kg/ha; Y is the total allowable harvesting of fish of different age classes or the general population, kg/ha; By is the remaining ichthyomass of the separate age classes or the general population, kg/ha; ΔP is increase in ichthyomass of the surviving fish of the separate age classes or the general population for the year, kg/ha; ΔP/B is the coefficient of restoration of the ichthyomass of the separate age classes or the general population; Py is growth created by the remaining ichthyomass of the separate age classes or the general population (By), kg/ha.

EFFECT: invention provides simplifying and increase in precision of determining of the total allowable harvesting of fish.

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