ArticlePloS one2014
Hydrodynamic trails produced by Daphnia: size and energetics.
Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Computational Fluid Dynamics Reveal Hydromechanical Adaptations ofEcology and evolution · 2026Article
- Facing the Green Threat: A Water Flea's Defenses against a Carnivorous Plant.International journal of molecular sciences · 2022Article
- Thwarting predators? A three-dimensional perspective of morphological alterations in the freshwater crustacean Daphnia.PloS one · 2021Article
- Functional responses of Daphnia magna to zero-mean flow turbulence.Scientific reports · 2019Article
- Comparative Prey Spectra Analyses on the Endangered Aquatic Carnivorous Waterwheel Plant (Integrative organismal biology (Oxford, England) · 2019Article
- Biogenic mixing induced by intermediate Reynolds number swimming in stratified fluids.Scientific reports · 2015Article
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
This study focuses on quantifying hydrodynamic trails produced by freely swimming zooplankton. We combined volumetric tracking of swimming trajectories with planar observations of the flow field induced by Daphnia of different size and swimming in different patterns. Spatial extension of the planar flow field along the trajectories was used to interrogate the dimensions (length and volume) and energetics (dissipation rate of kinetic energy and total dissipated power) of the trails. Our findings demonstrate that neither swimming pattern nor size of the organisms affect the trail width or the dissipation rate. However, we found that the trail volume increases with increasing organism size and swimming velocity, more precisely the trail volume is proportional to the third power of Reynolds number. This increase furthermore results in significantly enhanced total dissipated power at higher Reynolds number. The biggest trail volume observed corresponds to about 500 times the body volume of the largest daphnids. Trail-averaged viscous dissipation rate of the swimming daphnids vary in the range of 1.8 x 10(-6) W/kg to 3.4 x 10(-6) W/kg and the observed magnitudes of total dissipated power between 1.3 x 10(-9) W and 1 x 10(-8) W, respectively. Among other zooplankton species, daphnids display the highest total dissipated power in their trails. These findings are discussed in the context of fluid mixing and transport by organisms swimming at intermediate Reynolds numbers.
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