Authors: Becker, D.S.; Sexton, J.E.; Jacobs, L.A.; Hogarty, B.; Keeley, K.
Year: 2009
Reference: Becker, D.S.; Sexton, J.E.; Jacobs, L.A.; Hogarty, B.; Keeley, K. (2009) Biological responses to sediment remediation based on thin layer placement near a former pulp mill in Ward Cove, AK (USA). Environ. Monit. Assess. 154, 427-438.
Summary: Approximately 28 acres of Ward Cove, AK was covered with a thin layer of clean, fine grained sand (TOC, 0.15%) in 2001, to cover sediment with elevated ammonia and 4-methylphenol (4MP) concentrations resulting from a former sulfite pulp mill. The placement significantly reduced TOC and percent fine grained sediment in surficial layers. In general, reductions in solid phase ammonia and 4MP were observed as a result of thin-layer placement. The most noticeable change was a reduction in polychaete, C. capitata, and an increase in two bivalve molluscs, Axinopsida serricata and Parvilucina tenuisculpta, populations following thin layer placment. The change in benthic community is attributed to a reduction in organic enrichment and substrate change resulting from the placed material.
What You Will Find Here: Methods and Materials p. 429, Results and Discussion p. 432