Creatures from the Abyss (1994)

Creatures from the Abyss (also known as Plankton) is a 1994 Italian science fiction horror film directed by Massimiliano Cerchi and starring Clay Rogers, Michael Bon, Sharon Twomey, Laura di Palma and Ann Wolf.

Plot
Five teenagers embark on a boating trip off the coast of Florida. The teens get hopelessly lost at sea after they get caught in a fierce storm. Fortunately, the quintet stumble across an abandoned yacht in the middle of the ocean with a mysterious biology lab on board it. Unfortunately, there are also ferocious mutated prehistoric fish running amok on the yacht. Will any of the teens survive this harrowing ordeal?

Cast

 * Clay Rogers as Mike
 * Michael Bon as Bobby
 * Sharon Twomey as Margareth
 * Laura di Palma as Dorothy
 * Ann Wolf as Julie
 * Deran Sarafian as Professor

Home media
Shriek Show released it on July 31, 2007 as a part its Mutant Monsters Triple Feature which combined it with The Dark and The Being.