Grouping one-degree trapezoids into biostatistical areas on example of the Okhotsk Sea
https://doi.org/10.26428/1606-9919-2023-203-710-721
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.
Supporting agencies: The author is thankful to all colleagues who collected and processed scientific materials in marine expeditions, which were loaded in the TINRO databases.
About the Author
A. F. Volkov
Pacific branch of VNIRO (TINRO)
Russian Federation
Russian Federation
Anatoly F. Volkov, D.Biol., principal researcher
4, Shevchenko Alley, Vladivostok, 690091
References
1. Volkov, A.F., Opportunities and techniques of using the databases of TINRO “Zooplankton of the north Pacific, Okhotsk, Bering, and Chukchi Seas”, “Nekton trophology”, and “Marine biology”, Izv. Tikhookean. Nauchno-Issled. Inst. Rybn. Khoz. Okeanogr., 2019, vol. 198, pp. 239–261. doi 10.26428/1606-9919-2019-198-239-261
2. Shuntov, V.P., Volkov, A.F., Matveev, V.I., Cheblukova, L.V., and Gudz’, A.V., Development of productive zones in the Sea of Okhotsk during the autumn period, Sov. J. Mar. Biol., 1986, vol. 12, no. 4, pp. 241–248.
3. Kartograficheskiye tablitsy. Ellipsoid F.N. Krasovskogo (Cartographic tables. Ellipsoid of F.N. Krasovsky), Ed. hydrogr. Ex. Navy of the USSR,1949.
Review
For citations:
Volkov A.F. Grouping one-degree trapezoids into biostatistical areas on example of the Okhotsk Sea. Izvestiya TINRO. 2023;203(3):710-721. (In Russ.) https://doi.org/10.26428/1606-9919-2023-203-710-721
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