TRAPPED METHOD FOR EVALUATING STOCKS OF WATER BIOLOGICAL RESOURCES Russian patent published in 2012 - IPC A01K99/00 

FIELD: agriculture.

SUBSTANCE: method involves the definition of strathes of the test site of the water area, performance of the station of accounting catching, recording of the catch of traps, determination of the density of distribution of aquatic biological objects in the study area and assessment of stock of water biological resources according to the data obtained. The stations of accounting catching are performed with the possibility of catching with standardised traps with known given catchability and selectivity. When performing the stations the parameters of standardised traps are taken as control. In addition, a joint catching with traps is performed with different predetermined selective properties. The number and the selective properties of the traps are set and performed in accordance with the terms and objectives of accounting. The accounting of the catching is performed both for each trap individually and cumulatively for all traps with different selective properties. Catching with traps is performed together both in a certain strath and in different strathes.

EFFECT: technology enables to reduce the impact of the effect of "saturation" of traps on the catches.

3 cl, 4 dwg