Open AccessSTUDY OF THE POSSIBILITY OF USING THE CONCEPT OF GEOMETRIC PROBABILITY TO ESTIMATE THE PROBABILITY OF CAPTURE OF PELAGIC FISH AGGREGATIONS BY MIDWATER ROPE TRAWL
Author(s) -
Anikolaevna Yanchuk,
Alexander Vasilievich Dvernik
Publication year - 2017
Publication title -
vestnik astrahanskogo gosudarstvennogo tehničeskogo universiteta. seriâ: rybnoe hozâjstvo
Language(s) - English
Resource type - Journals
eISSN - 2309-978X
pISSN - 2073-5529
DOI - 10.24143/2073-5529-2017-2-45-55
Subject(s) - pelagic zone , rope , marine engineering , fish <actinopterygii> , fishery , computer science , environmental science , algorithm , engineering , biology
The article discusses the possibility of using one of the methods of probability theory in the classical problem about the meeting in relation to the issue of full coverage of Jack mackerel aggregations in the Southeast Pacific by the rope part of the midwater trawl. Calculations of the values of the geometric probability of capture were carried out with trawls 69/318 and 120/980 of "Fishering service", LLC. The article proposes a kinematic model of interaction between fish and the system ‘vessel + trawl’, provided that the fish directs to the trawl mouth under the ground line. The results obtained confirm the fruitfulness of using the concept of geometric probability to determine the probability of capture and the average value of the angle of the fish shoal’s routing. There were carried out relevant calculations of errors of such measurements. It has been found reasonable to continue research based on the proposed method for obtaining average weighed values, which are necessary for further improvement of the methods of calculation of technical parameters of the midwater rope trawls.