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Operculum of a Water Snail is a Hydrodynamic Lubrication Sheet

Abstract

Water snails developed a distinct appendage, the operculum, to better protect the body against predators. When the animal is active and crawling, part of the underside of the shell rests on the outer surface of the operculum. We observed the water snails (Pomacea canaliculata) spend ~3 hours per day foraging, and the relative angular velocity between the shell and operculum can reach up to 10 °·s−1, which might inevitably lead to abrasion on the shell and operculum interface. However, by electron microscopy images, we found that the underside of the shell and outer surface of the operculum is not severely worn, which indicates that this animal might have a strategy to reduce wear. We discovered the superimposed rings distributed concentrically on the surface, which can generate micro-grooves for a hydrodynamic lubrication. We theoretically and experimentally revealed the mechanism of drag reduction combing the groove geometry and hydrodynamics. This textured operculum surface might provide a friction coefficient up to 0.012 as a stability-resilience, which protects the structure of the snail’s shell and operculum. This mechanism might open up new paths for studies of micro-anti-wear structures used in liquid media.

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References

  1. [1]

    Carlsson N O L, Bronmark C. Size-dependent effects of an invasive herbivorous snail (Pomacea canaliculata) on macrophyte and periphyton in Asian wetlands. Freshwater Biology, 2006, 51, 695–704.

    Article  Google Scholar 

  2. [2]

    Seuffert M E, Burela S, Martin P R. Influence of water temperature on the activity of the freshwater snail Pomacea canaliculata (Caenogastropoda: Ampullariidae) at its southernmost limit (Southern Pampas, Argentina). Journal of Thermal Biology, 2010, 35, 77–84.

    Article  Google Scholar 

  3. [3]

    Harrision F W, Kohn A J. Microscopic Anatomy of Invertebrates, Volume 5, Mollusca I, Wiley-Liss, New York, USA, 1994.

    Google Scholar 

  4. [4]

    Páll-Gergely B, Naggs F, Asami T. Novel shell device for gas exchange in an operculate land snail. Biology Letters, 2016, 12, 20160151.

    Article  Google Scholar 

  5. [5]

    Poznanska M, Kakareko T, Gulanicz T, Jermacz L, Kobak J. Life on the edge: Survival and behavioural responses of freshwater gill-breathing snails to declining water level and substratum drying. Freshwater Biology, 2015, 60, 2379–2391.

    Article  Google Scholar 

  6. [6]

    Chen Y, Wang X, Ren H, Yin H, Jia S. Hierarchical dragonfly wing: Microstructure-biomechanical behavior relations. Journal of Bionic Engineering, 2012, 9, 185–191.

    Article  Google Scholar 

  7. [7]

    Rajabi H, Shafiei A, Darvizeh A, Dirks J, Appel E, Gorb S N. Effect of microstructure on the mechanical and damping behaviour of dragonfly wing veins. Royal Society of Open Science, 2016, 3, 160006.

    Article  Google Scholar 

  8. [8]

    Liang Y, Zhao J, Yan S. Honeybees have hydrophobic wings that enable them to fly through fog and dew. Journal of Bionic Engineering, 2017, 14, 549–556.

    Article  Google Scholar 

  9. [9]

    Yang Y, Wu J, Zhu R, Li C, Yan S. The honeybee’s protru sible glossa is a compliant mechanism. Journal of Bionic Engineering, 2017, 14, 607–615.

    Article  Google Scholar 

  10. [10]

    Bhushan B. Biomimetics: Lessons from nature—an overview. Philosophical Transactions, 2009, 367, 1445–1486.

    Article  Google Scholar 

  11. [11]

    Li C, Wu J, Yang Y, Zhu R, Yan S. Drag reduction in the mouthpart of a honeybee facilitated by galea ridges for nectar-dipping strategy. Journal of Bionic Engineering, 2015, 12, 70–78.

    Article  Google Scholar 

  12. [12]

    Wu J, Yang H, Yan S. Energy saving strategies of honeybees in dipping nectar. Scientific Reports, 2015, 5, 15002.

    Article  Google Scholar 

  13. [13]

    Wu J, Zhu R, Yan S, Yang Y. Erection pattern and section- wise wettability of honeybee glossal hairs in nectar feeding. Journal of Experimental Biology, 2015, 218, 664–667.

    Article  Google Scholar 

  14. [14]

    Gu Y Q, Fan T X, Mou J G, Jiang L F, Wu D H, Zheng S H. A review of bionic technology for drag reduction based on analysis of abilities the earthworm. International Journal of Engineering Research in Africa, 2015, 19, 103–111.

    Article  Google Scholar 

  15. [15]

    Wainwright S A, Vosburgh F, Hebrank J H. Shark skin: Function in locomotion. Science, 1978, 202, 747–749.

    Article  Google Scholar 

  16. [16]

    Tian L, Jin E, Mei H, Ke Q, Li Z, Kui H. Bio-inspired graphene- enhanced thermally conductive elastic silicone rubber as drag reduction material. Journal of Bionic Engineering, 2017, 14, 130–140.

    Article  Google Scholar 

  17. [17]

    Oeffner J, Lauder G V. The hydrodynamic function of shark skin and two biomimetic applications. Journal of Experimental Biology, 2012, 215, 785–795.

    Article  Google Scholar 

  18. [18]

    Jung Y C, Bhushan B. Biomimetic structures for fluid drag reduction in laminar and turbulent flows. Journal of Physics Condensed Matter An Institute of Physics Journal, 2010, 22, 035104.

    Article  Google Scholar 

  19. [19]

    Han Z, Zhu B, Yang M, Niu S, Song H, Zhang J. The effect of the micro-structures on the scorpion surface for improving the anti-erosion performance. Surface & Coatings Technology, 2017, 313, 143–150.

    Article  Google Scholar 

  20. [20]

    Shi G, Wu J, Yan S. Drag reduction in a natural high-frequency swinging micro-articulation: Mouthparts of the honey bee. Journal of Insect Science, 2017, 17, 1–7.

    Article  Google Scholar 

  21. [21]

    Eleutheriadis N, Lazaridoudimitriadou M. The life cycle, population dynamics, growth and secondary production of Bithynia graeca (Westerlund, 1879) (Gastropoda) in Lake Kerkini, Northern Greece. Journal Molluscan Studies, 2001, 67, 319–328.

    Article  Google Scholar 

  22. [22]

    Chandrasekaran T, Kishore. On the roughness dependence of wear of steels: A new approach. Journal of Materials Science Letters, 1993, 12, 952–954.

    Article  Google Scholar 

  23. [23]

    Duvvuru R S, Jackson R L, Hong J W. Self-adapting microscale surface grooves for hydrodynamic lubrication. Tribology Transactions, 2008, 52, 1–11.

    Article  Google Scholar 

  24. [24]

    Li C C, Wu J N, Yang Y Q, Zhu R G, Yan S Z. Drag reduction effects facilitated by microridges inside the mouthparts of honeybee workers and drones. Journal of Theoretical Biology, 2016, 389, 1–10.

    Article  MATH  Google Scholar 

  25. [25]

    Ikeuchi K, Mori H, Nishida T. A face seal with circumferential pumping grooves and rayleigh-steps. Transactions of the Japan Society of Mechanical Engineers C, 1988, 110, 313–319.

    Google Scholar 

  26. [26]

    Reynolds O. On the theory of lubrication and its application to Mr. Beauchamp tower’s experiments, including an experimental determination of the viscosity of olive oil. Proceedings of the Royal Society of London, 1886, 40, 191–203.

    Google Scholar 

  27. [27]

    Siripuram R B, Stephens L S. Effect of deterministic asperity geometry on hydrodynamic lubrication. Journal of Tribology, 2004, 126, 527–534.

    Article  Google Scholar 

  28. [28]

    Jokinen E H. Cipangopaludina chinensis (Gastropoda: Viviparidge) in North America, review and update. Nautilus, 1982, 96, 89–95.

    Google Scholar 

  29. [29]

    Lopes H S. Sôbre Pomacea canaliculata (Lamarck, 1822) (Mesogastropoda, Architaenioglossa, Mollusca). Revista Brasileira de Biologia, 1956, 16, 535–542. (in Portuguese)

    Google Scholar 

  30. [30]

    Carlsson N O L, Brönmark C, Hansson L A. Invading herbivory: The golden apple snail alters ecosystem functioning in Asian wetlands. Ecology, 2004, 85, 1575–1580.

    Article  Google Scholar 

  31. [31]

    Kolar C S, Lodge D M. Progress in invasion biology: Predicting invaders. Trends in Ecology & Evolution, 2001, 16, 199–204.

    Article  Google Scholar 

  32. [32]

    Oya S, Hirai Y, Miyahara Y. Injuring habits of the apple snail, Ampullarius insularus D’Orbigny, to the young rice seedlings. Kyushu Plant Protection Research, 1986, 32, 92–95.

    Article  Google Scholar 

  33. [33]

    Linn F C. Lubrication of animal joints. I. The arthrotripsometer. Journal of Bone & Joint Surgery-American Volume, 1967, 49, 1079–1098.

    Article  Google Scholar 

  34. [34]

    Fish F E. Imaginative solutions by marine organisms for drag reduction. Proceedings of the International Symposium on Seawater Drag Reduction, 1998, 443–450.

    Google Scholar 

  35. [35]

    Dou Z, Wang J, Chen D. Bionic research on fish scales for drag reduction. Journal of Bionic Engineering, 2012, 9, 457–464.

    Article  Google Scholar 

  36. [36]

    Rosen M W, Cornford N E. Fluid friction of fish slimes. Nature, 1971, 234, 49–51.

    Article  Google Scholar 

  37. [37]

    Zhao D, Tian Q, Wang M, Jin Y. Study on the hydrophobic property of shark-skin-inspired micro-riblets. Journal of Bionic Engineering, 2014, 11, 296–302.

    Article  Google Scholar 

Download references

Acknowledgments

We thank the Centre of Biomedical Analysis of Tsinghua University. This study was funded by the National Natural Science Founding of China (Grant no. 51475258) and the Research Project of the State Key Laboratory of Tribology under Contract SKLT2014B06.

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Correspondence to Yunqiang Yang or Shaoze Yan.

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Xu, X., Wu, J., Yang, Y. et al. Operculum of a Water Snail is a Hydrodynamic Lubrication Sheet. J Bionic Eng 15, 471–480 (2018). https://doi.org/10.1007/s42235-018-0038-4

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Keywords

  • water snails
  • operculum
  • micro-grooves
  • friction reduction
  • biomaterial