What is the symbol for a marine pollutant?

Question

The marine pollutant marking is the image of a fish in a white triangle with an X through through the fish.

Accepted Answer

The image of a fish in a white triangle with an X through through the fish

Answer

The image of a waves in a yellow triangle with an X through through the waves

Answer

A light blue square with a dark blue X through the square

Answer

The image of a bird in a red octagon