BioTech Encyclopedia

Electric eel

Experiments: basic research on living systems, not technology.

Also: Electrophorus electricus

Electric eels generate shocks of hundreds of volts with stacks of specialised cells.

Known properties: Electric eel

Only what the cited papers report.

Key measured values

Values as stated in the cited paper's abstract.

PropertyValueSource
Eel organ peak voltage600 VSchroeder 2017
Eel organ current1 ASchroeder 2017
Hydrogel stack open-circuit voltage110 VSchroeder 2017
Highest recorded electric eel discharge (new species)860 Vde Santana 2019

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Timeline

  1. 2014 How eels remote-control their prey
  2. 2015 Eels curl up to tire out prey
  3. 2016 Leaping eels and Humboldt's horses
  4. 2017 Eel-inspired soft battery
  5. 2019 Three electric eel species, one record-breaker

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biology

lab biology 2016

Leaping eels and Humboldt's horses

Catania described electric eels leaping out of the water to press their chin against a threat while discharging high-voltage volleys, supporting Alexander von Humboldt's 1800 account of eels attacking horses.

As reported in: Catania (2016). Leaping eels electrify threats, supporting Humboldt’s account of a battle with horses. Proceedings of the National Academy of Sciences. doi:10.1073/pnas.1604009113

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lab biology 2015

Eels curl up to tire out prey

Catania reported that electric eels concentrate their electric field to induce involuntary fatigue in struggling prey.

As reported in: Catania (2015). Electric Eels Concentrate Their Electric Field to Induce Involuntary Fatigue in Struggling Prey. Current Biology. doi:10.1016/j.cub.2015.09.036

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lab biology 2019

Three electric eel species, one record-breaker

De Santana and colleagues found there are three electric eel lineages, two of them new species; one of the new species discharged 860 volts, making it the strongest known living generator of bioelectricity.

As reported in: de Santana, Crampton, Dillman et al. (2019). Unexpected species diversity in electric eels with a description of the strongest living bioelectricity generator. Nature Communications. doi:10.1038/s41467-019-11690-z

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lab biology 2014

How eels remote-control their prey

Catania showed electric eel discharges activate prey motor neurons, causing whole-body muscle lock in swimming prey and twitches that reveal hidden prey.

As reported in: Catania (2014). The shocking predatory strike of the electric eel. Science. doi:10.1126/science.1260807

Abstract only

energy

prototype energy 2017

Eel-inspired soft battery

Schroeder and colleagues built a soft, flexible power source from stacked hydrogels modelled on the eel's electric organ.

As reported in: Schroeder, Guha, Lamoureux et al. (2017). An electric-eel-inspired soft power source from stacked hydrogels. Nature. doi:10.1038/nature24670

Read free · preprint / author manuscript

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