Seabirds indicate changes in the composition of plastic litter in the Atlantic and south-western Indian Oceans.

摘要: I compare plastic ingested by five species of seabirds sampled in the 1980s and again 1999-2006. The numbers particles have not changed significantly, but proportion virgin pellets has decreased 44-79% all species: great shearwater Puffinus gravis, white-chinned petrel Procellaria aequinoctialis, broad-billed prion Pachyptila vittata, white-faced storm Pelagodroma marina white-bellied Fregetta grallaria. populations range widely South Atlantic western Indian Oceans. most marked reduction occurred shearwaters, where average number per bird from 10.5 to 1.6. This migrates between North each year. Similar decreases been recorded short-tailed shearwaters tenuirostris Pacific Ocean northern fulmars Fulmarus glacialis Sea. More data are needed on relationship loads density at sea their foraging areas, consistent decrease birds suggests there a global change composition small debris over last two decades.