It literally says it comes from the Deep-Sea Debris Database, it doesn't spoonfeed it by listing the specific reference, but a search for "mariana trench" and I

It literally says it comes from the Deep-Sea Debris Database, it doesn't spoonfeed it by listing the specific reference, but a search for "mariana trench" and I can see a large variety of debris, including Plastic bag/sheet (Several), Unidentified debris Can Beverage can Other plastic product (Several) etc