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Field note

Electric eel in 2019: 860 V note · 381

[380] [desk-electric-eel-9] In 2019, the field log for Electric eel is headed “860 V note.” The figure kept beside that heading is 600. It is a count or a date from the work, not a rank of the species’ worth. A zoo birthday card does not replace the log. de Santana et al. named E. voltai and E. varii beside E. electricus.

Amazon knifefishes whose stacked electrocytes taught Humboldt, Volta arguments and a 2019 species split. No. It is a gymnotiform knifefish. The body plan and voltage organ are South American, not Anguilliform. A 2019 Nature Communications paper split Electrophorus into three: E. electricus, E. voltai and E. varii. Voltage and DNA both argued for the split.

E. voltai has been measured near 860 V. That is a prey-stun and defence pulse, not a household-current analogy that holds in every tank. What did Humboldt actually do in 1800? His account of horses herded into a pool of eels became a European science anecdote. Later readers treated it as a method; it was also travel theatre.

Did electric eels inspire the battery? Volta and Galvani debates used animal electricity. Electrophorus was a New World exhibit in that argument, not the sole inventor of the pile. A high-voltage volley can freeze prey; a weaker field maps the night water. Kenneth Catania high-speed videos in the 2010s showed doublets that twitch hidden fish.

Keep 2019, “860 V note,” and 600 together or the note on Electric eel stops being that year’s record.2019

Figures to keep

Year of the note
2019
Figure to keep
600
Species
Electric eel
Line in the log
860 V note

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