Films: Deep Shock (2003)
Height/Weight: Three times that of an oarfish.
Summary: It's a classical trope of animal media. The idea that there are eels that can generate enough electricity to zap a person to oblivion. Putting the logistics aside, that is a rather terrifying prospect. But imagine them real, and huge...
History: Somewhere in the Arctic ocean, strange happenings have resulted in submarines getting disabled by EMPs and people going missing. An Arctic base known as the Hubris (we presume the namer got fired) investigates the Polaris Trench, but even it goes quiet. Further investigations point to a group of enormous electric deep-sea eel actively sabotaging everything. The only question is why.
Notable Kills: Nothing special.
Final Fate: As it turns out, the eels just really want us to stop going near their home, and allow the survivors to leave once the Hubris starts sinking. From that moment forward, no one's going near there anytime soon.
Powers/Abilities: As well as heightened intelligence, these eels can generate enough electricity to take out power for miles.
Weakness: Anything conventional.
Scariness Factor: 2.5-Bad CGI means that these powerful fish come undone. It doesn't help that they look a bit on the cartoonish side when it comes to design as well. But in the end, you basically have electric dolphins. As in, animals who have an agenda, and are not above killing to make it known.
Trivia: -In truth, electric eels aren't even eels at all. They're knifefish, a subspecies of catfish that has evolved to use electrical fields in order to find and instantly kill prey. Indeed, electric eels are the most deadly of them all, capable of generating enough electricity to kill a man with one shock. However, they will have to recharge at some point.
-Electric eels are hardly the only electrical fish around. There are electric rays and catfish, though some electrical fish have too weak of a voltage to kill anything, instead using their power as a means of navigation and communication. Examples of these include elephantnose fish and black ghost knifefish.