Updated: Sep 23, 2019
Plastic pollution in the ocean affects the organisms at the seafloor more than any others. Microorganisms living at the bottom of the ocean have been found with relatively massive pieces of plastic stuck in their bodies. A variety of sea animals, from gray whales to sea turtles, have also been found dead with plastic bags stuffed in their stomach. They mistakenly believe that they have eaten enough with stomach full of plastic bags, and starve to death subsequently. Big and intelligent animals, such as dolphins, may not eat plastic directly. They can still be harmed indirectly through prey that have eaten plastic.
"According to the United Nations, at least 800 species worldwide are affected by marine debris, and as much as 80 percent of that litter is plastic."
For more information, you can visit this link: https://www.pewtrusts.org/en/research-and-analysis/articles/2018/09/24/plastic-pollution-affects-sea-life-throughout-the-ocean