Abstract
A calculation method is substantiated giving a possibility for the estimation of the population stock per water region covered by a multitude of samples. This task is solved in two stages: (1) construction of surface describing spatial distribution of abundance in samples and (2) numerical integration of volume covered by this surface. Twelve methods of calculation of such surfaces are compared. Criteria are discussed which allow for the possibility to top select the method most suitable for a certain material (filtration, transformation, blanking of sites, scaling, calculation of areas and volumes). Generalization of the Aksyutina area method is suggested for the case when the population is distributed over a large depth range. Examples of calculation of the stock are given for populations of the Pacific sardine Sardinops melanostictus in the Sea of Japan (a flat area) and the wall-eyed pollack Theragra chalcogramma in the Sea of Okhtosk (a three-dimentional area). The results are compared with calculations by the Aksyutina area method and with assessments of the stock obtained from independent sources.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
