Grouping one-degree trapezoids into biostatistical areas on example of the Okhotsk Sea

Abstract

A method for grouping one-degree trapezoids into biostatistical areas of any size is proposed. For this purpose, all stations of survey are marked by the number of trapezoid, its area and central coordinates. Then the stations are sorted by the trapezoid numbers; their biological parameters (biomass, abundance, etc.). The mean values are integral parameters with the weights proportional to size of trapezoids — they can be easily grouped into small or large areas of any shape, depending on research tasks.

Keywords

• one-degree trapezoid
• biostatistical area
• macro area
• coordinate