| estuarine macrobenthic community structure in the hawkesbury river, australia: relationships with sediment physicochemical and anthropogenic parameters. | macrobenthic community assemblage diversity and abundance were monitored on both cowan and berowra creeks in the estuarine reaches of the hawkesbury river, sydney australia during 1997-1998. natural sediment physicochemical differences were assessed, along with low-level anthropogenic contaminants including copper, lead, zinc, phosphorus and nitrogen. contaminant levels at all sites were below sediment guideline values for biological effects. natural physicochemical sediment differences were the ... | 2001 | 11693554 |