Complete the notes. Choose ONE WORD ONLY from the passage for each answer.

Findings related to marine debrisStudies of marine debris found the biggest threats were

• plastic (not metal or wood)

• bits of debris that were [1] (harmful to animals)

There was little research into [2] e.g. from synthetic fibres.

Drawbacks of the studies examined

• most of them focused on individual animals, not entire [3]

• the [4] of plastic used in the lab did not always reflect those in the ocean

• there was insufficient information on

– numbers of animals which could be affected

– the impact of a reduction in numbers on the [5] of that species

– the impact on the ecosystem

Rochman says more information is needed on the possible impact of future [6] (e.g. involving oil).