High concentrations of plastic debris in the ocean

I found a video about parts of the ocean that collect floating plastic debris in a kind of gigantic whirl pool called a Gyre. Basically, tons of plastics that are thrown into the ocean get caught in these circular currents, which end up leaving large concentrations of plastic fragments floating in the water. Animals eat the plastic, and non-native species attach themselves to it, causing biotic mixing, where no-native species populate in areas they shouldn't be. Check out the videos, they're pretty interesting.

Part1:


Part2: