http://ec.europa.eu/environment/integration/research/newsalert/newsalert.htm

Science for Environment Policy
Issue 365, 13 March 2014

Lugworms harmed by marine microplastic pollution

Microplastic pollution impairs the heath of the marine worms that help
maintain sediments for other creatures, new research suggests. This
study shows that the energy reserves of lugworms living in sediment
contaminated with microplastic particles were reduced by up to 50%.

http://ec.europa.eu/environment/integration/research/newsalert/pdf/365na2.pdf