Abstract
The article discusses the results of statistical processing of the occurrence of krill individuals depending on some environmental factors, based on actual hydrophysical measurement data acquired at studied stations in the Powell Basin of the Weddell Sea, the Bransfield Strait, and Antarctic Sound, as well as off the South Orkney Islands, in the austral summer of 2022. Data were obtained on the association of the main abiotic environmental factors and their values, which are optimal for juvenile and mature krill individuals, and a number of abiotic environmental factors that affect the distribution of Antarctic krill in the studied region were identified. The results of such statistical modeling are important for monitoring the state of Antarctic ecosystems and their components under changing environmental factors, including current climate change trends.
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ACKNOWLEDGMENTS
The authors express their deepest gratitude to the administrative body of cruise AMK-87, as well as to the crew of the R/V Akademik Mstislav Keldysh for their comprehensive assistance and support during expeditionary work and research. The authors also sincerely thank IO RAS personnel A. V. Mishin, K. V. Minin, and V. L. Semin for professional trawling and assistance in analyzing the material, as well as D. Frey for scientific advice and assistance in working with hydrophysical data.
Funding
The research was carried out within the state task of the Ministry of Science and Higher Education of the Russian Federation no. FMWE-2022-0001, GS KarRC RAS FMEN-2022-0006, and also with the financial support of Grant of the President of the Russian Federation for young doctors of sciences MD-5761.2021.1.4.
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Murzina, S.A., Voronin, V.P., Bitiutskii, D.G. et al. Modeling of the Distribution and Relationship with Abiotic Environmental Factors of Juvenile and Adult Antarctic Krill Euphausia superba Based on Actual Hydrophysical Measurements. Oceanology 63, 568–573 (2023). https://doi.org/10.1134/S0001437023040148
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DOI: https://doi.org/10.1134/S0001437023040148