The Ocean Of Plastic (#plastic or planet contest)

This is a short story that I have written for the contest Nation Geographic is hosting, Plastic or Planet.
All the characters and events are a product of my imagination, none of this holds any resemblance to any real life incident but however, the story does convey the main message, the purpose of this contest which is how our irresponsibility and carelessness is the cause of death and extinction of marine life.