Research of the interspecific competition in the eastern okhotsk sea flounders (pleuronectidae) with the use of neutral and math models
https://doi.org/10.15853/2072-8212.2020.59.51-75
Abstract
The article presents results of examining possible competition between mass species of flounders for food resources in the eastern part of the Sea of Okhotsk. Comparative analysis of flounder feeding is provided in view of nonrandom forming food spectra as an effect of certain factor, which is interspecific competition in particular. Analysis of population growth rate dynamics was to find out mutual effects of the populations of different species on each other. General methods of the research included “neutral models” and Lotka – Volterra equations. Results indicate, that structure of flounder feeding had stabilized early under the influence of factors, including the interspecific competition. In most cases, the interspecific competition estimated per an individual is higher than intraspecific competition. Simulation has demonstrated, that flounder populations of the eastern part of the Sea of Okhotsk striving in their dynamics to the state of sustainable balance. Revealed competition between the flounder species for the resources is of assymmetric character.
About the Author
Yu. P. Dyakov
Kamchatka Branch of Russian Research Institute of Fisheries and Oceanography (“KamchatNIRO”)
Russian Federation
Russian Federation
Leading Scientist, Dr. of Science (Biology)
683000 Petropavlovsk-Kamchatsky, Naberezhnaya Str., 18
Tel., fax: +7 (4152) 41-27-01, 42-19-87
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Review
For citations:
Dyakov Yu.P. Research of the interspecific competition in the eastern okhotsk sea flounders (pleuronectidae) with the use of neutral and math models. The researches of the aquatic biological resources of Kamchatka and the North-West Part of the Pacific Ocean. 2020;(59):51-75. (In Russ.) https://doi.org/10.15853/2072-8212.2020.59.51-75
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