In a series I'm writing, there are seven categories of species of intelligent, human-like creatures with magical abilities that vary by species. One of them is a revamp of mermaids, or as I call them, Merpeople.
Merpeople are various aquatic vertibrates(mostly) that don't resemble humans in the slightest, but are just as intelligent. To keep the other intelligent species from eating them, the Merpeople learned to shapeshift into human-looking creatures. All Merpeople have hydrokinesis to a degree, in both forms. Their forms are called Natural/Original form and Artificial(humanlike) form.
The Artificial form of an individual weighs the same amount as their Natural form. The Merperson physically shifts the mass in their body to be bigger and look different, but it's still the same (amount of)substances. Their internal organs are carefully rearranged to fill in the space inside the different rib cage and skull better, and the bones enlongate and change shape to support standing upright(they're known for having weak bones), and they form artificial 'lungs' that are much bigger than ours to absorb more oxygen, inhaling through their mouths.
One of the main characters' Natural form(they're a Merperson)resembles an electric eel, complete with their electrogenesis(a living thing being able to generate electricity) and electroreception(being able to sense other living things/objects via sensing a disturbance in once's own electromagnetic field). In human years, they're about 15 years old. They can't shock people on land the same way that they can underwater while in their Artificial form, but they still have the ability to generate electricity.
I can't figure out how to map the electrical organs onto a humanoid. I have done research on everything from human-knifefish common ancestor(Gnathostomes, that knowledge did not help) to looking at diagrams of the organs to reading several full Wikipedia pages on electric eels and their relatives.
Here's what I need to know:
How could a humanoid have electric eel-like electrical organs? Where would they go? How big would they be, and how close together?
How would they shock someone? Is physical touch necessary? If not, how far away could they shock someone with the average electrical output of an electric eel?
An adult electric eel can generate a range of ~600 to ~800 volts of electricity for about a full minute. No sources said anything about age affecting output. At what age(relatively) can an 'eel produce electricity, and at what increment does the output increase as they get older?
How fast do electric eels age in comparison to human years?
And, although I didn't mention this earlier;
- Since all they do when they shapeshift is rearrange preexisting parts of their body, would they be able to have good eyesight if they wanted to? They can only rearrange at the cellular level, not at the molecular, atomic, or smaller. They wouldn't be able to replicate any sense or ability that requires specific cells that they don't have in their natural form. What other senses do electric eels have, and how good?
I appreciate your help and would love to hear what you have to say.