Accumulation of trace elements in the shell of eggs of Amur Softshell turtle Pelodiscus maackii (Brandt, 1858)

Authors

  • Irina A. Nikitina Joint Directorate of State Natural Reserves and National Parks of Khabarovsk Krai (Federal State Budgetary Institution ‘Zapovednoe Priamurye’)
  • Rimma S. Andronova Joint Directorate of State Natural Reserves and National Parks of Khabarovsk Krai (Federal State Budgetary Institution ‘Zapovednoe Priamurye’)
  • Dmitry D. Krishkevich Municipal Autonomous Institution of Additional Education ‘Center for Extracurricular Activities Troitskoye’ in the Nanai District (Municipal Autonomous Institution of Additional Education ‘Center for Extracurricular Activities’)

DOI:

https://doi.org/10.33910/2686-9519-2025-17-4-807-815

Keywords:

Amur Softshell Turtle, eggshell, trace elements, Amur River basin, monitoring

Abstract

Assessing the impact of environmental factors on rare animal species is a crucial aspect of biodiversity research and conservation. The key challenges in monitoring the physiological condition of rare species in the wild are the difficulty of studying live specimens and the lack of standardized methods. Analyzing the eggshell composition of the Amur Softshell Turtle is an accessible, non-invasive method for evaluating negative anthropogenic or natural impacts on this species. Quantitative determination of toxic elements — primarily heavy metals — in biological materials allows for the diagnosis of changes in the elemental composition of its food resources and habitat. This study demonstrates that the trace element composition of Amur Softshell Turtle eggshells reflects such changes occurring in the aquatic environments of the Amur River basin.

References

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Published

2025-12-31

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