Display options
Cite
Aquino T, Roche KR, Aubeneau A, et al. A Process-Based Model for Bioturbation-Induced Mixing. Sci Rep. 2017;7(1):14287doi: 10.1038/s41598-017-14705-1.
Aquino, T., Roche, K. R., Aubeneau, A., Packman, A. I., & Bolster, D. (2017). A Process-Based Model for Bioturbation-Induced Mixing. Scientific reports, 7(1), 14287. https://doi.org/10.1038/s41598-017-14705-1
Aquino, Tomás, et al. "A Process-Based Model for Bioturbation-Induced Mixing." Scientific reports vol. 7,1 (2017): 14287. doi: https://doi.org/10.1038/s41598-017-14705-1
Aquino T, Roche KR, Aubeneau A, Packman AI, Bolster D. A Process-Based Model for Bioturbation-Induced Mixing. Sci Rep. 2017 Oct 27;7(1):14287. doi: 10.1038/s41598-017-14705-1. PMID: 29079758; PMCID: PMC5660215.
Copy Download .nbib Format: NLM
Share it on

Sci Rep. 2017 Oct 27;7(1):14287. doi: 10.1038/s41598-017-14705-1.

A Process-Based Model for Bioturbation-Induced Mixing.

Scientific reports

Tomás Aquino, Kevin R Roche, Antoine Aubeneau, Aaron I Packman, Diogo Bolster

Affiliations

  1. Spanish National Research Council (IDAEA - CSIC), 08034, Barcelona, Spain. [email protected].
  2. Department of Civil and Environmental Engineering and Earth Sciences, University of Notre Dame, 46556, Indiana, USA. [email protected].
  3. Department of Civil and Environmental Engineering and Earth Sciences, University of Notre Dame, 46556, Indiana, USA.
  4. Department of Civil and Environmental Engineering, Northwestern University, 60208, IL, USA.
  5. Lyles School of Civil Engineering, Purdue University, 47907, Indiana, USA.

PMID: 29079758 PMCID: PMC5660215 DOI: 10.1038/s41598-017-14705-1

Abstract

Bioturbation refers to the transport processes carried out by living organisms and their physical effects on soils and sediments. It is widely recognized as an important mixing mechanism, particularly at the sediment-water interface in many natural systems. In order to quantify its impact on mixing, we propose a process-based model based on simple assumptions about organism burrowing behavior. Specifically, we consider burrowing events to be stochastic but memoryless, leading to exponential inter-burrow waiting times and depths. We then explore the impact of two different transport mechanisms on the vertical concentration distributions predicted by the model for a conservative (inert) tracer. We compare the results of our model to experimental data from a recent laboratory study of bioturbation by the freshwater oligochaete worm Lumbriculus variegatus, and find good quantitative agreement.

References

  1. Biol Lett. 2016 Aug;12 (8):null - PubMed
  2. Environ Sci Technol. 2016 Sep 20;50(18):10047-54 - PubMed
  3. Environ Toxicol Chem. 2004 Jan;23 (1):178-86 - PubMed
  4. Environ Sci Technol. 2003 Jul 1;37(13):252A-258A - PubMed
  5. Trends Ecol Evol. 2006 Dec;21(12):688-95 - PubMed

Publication Types