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Effects of Bellamya aeruginosa and Corbicula fluminea bioturbation on the vertical distribution of phosphorus forms in aquatic sediments: a laboratory study

  • Sediments, Sec 4 • Sediment-Ecology Interactions • Research Article
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Abstract

Purpose

The vertical distribution of phosphorus (P) can vary depending on specific environmental factors like type of water body, soil type, land management and bioturbating macrofauna. To investigate how the benthic macrofauna affects vertical P distribution in aquatic sediment, a mesocosm laboratory experiment was conducted by using two muluscans: Bellamya aeruginosa and Corbicula fluminea.

Materials and method

A 21-day mesocosm experiment was conducted with natural assemblages of two benthic macroinvertebrates (B. aeruginosa and C. fluminea). The Standard Measurements and Testing (SMT) method was used to acquire the migration, distribution, and transformation of P forms in benthic sediment bioturbation.

Results and discussion

Results showed that the bioturbation of the benthic animals affected the decomposition and transformation of organic P (OP) in the sediment. The OP content in the sediment treated with benthic animal groups decreased dramatically during the experiment (p < 0.05). The non-apatite-inorganic-P (NAIP), inorganic-P (IP), and total-P (TP) of all treatment groups in the sediment layers increased over the experimental period. Comparing the two forms of bioturbation exerted, that of C. fluminea was significantly stronger compared to B. aeruginosa and the control groups. The apatite P content increased significantly in the 0–1-cm layer, and a significant decrease was observed in the 1–2-cm layer of the sediment (p < 0.05).

Conclusion

This study shows that the bioturbation forces created by benthic macroinvertebrates B. aeruginosa and C. fluminea have significant impacts on the vertical distribution and transformation of sediment P forms and that the bioturbation effects of the C. fluminea on migration/transformation of P forms was stronger compared to B. aeruginosa.

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Data availability

The datasets generated during and/or analyzed during the current study are available from the corresponding author on reasonable request.

References

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Funding

This study was supported by the National Key R & D Program of China (2020YFD0900201), the Zhejiang Public Welfare Technology Research Program of China (ZPWTP) (LGN18C190008), and the K.C. Wong Magna Fund in Ningbo University.

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All authors declare participating for publication.

Corresponding authors

Correspondence to Regan Nicholaus or Zhongming Zheng.

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The research did not involve human participants and/or animals.

Conflict of interest

The authors declare no competing interests.

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Responsible editor: Hezhong Yuan

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Nicholaus, R., Lukwambe, B. & Zheng, Z. Effects of Bellamya aeruginosa and Corbicula fluminea bioturbation on the vertical distribution of phosphorus forms in aquatic sediments: a laboratory study. J Soils Sediments 24, 1019–1029 (2024). https://doi.org/10.1007/s11368-023-03686-6

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  • DOI: https://doi.org/10.1007/s11368-023-03686-6

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