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Comparison of solid-phase and pore-water approaches for assessing the quality of marine and estuarine sediments

Robert Scott Carr·Duane Chapman
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Abstract

As part of our continuing evaluation of the pore-water approach for assessing sediment quality, we made a series of side-by-side comparisons between the standard 10-day amphipod whole sediment test with the corophiid Grandidierella japonica and a suite of tests using pore water extracted from the same sediments. the pore-water tests evaluated were the sea urchin ( Arbacia punctulata ) sperm cell test and morphological development assay, the life-cycle test with the polychaete Dinophilus gyrociliatus , and acute exposures of red drum ( Sciaenops ocellatus ) embryo-larval stages. Sediment and surface microlayer samples were collected from contaminated sites. Whole-sediment, pore-water, and surface microlayer toxicity tests were performed. Pore-water toxicity tests were considerably more sensitive than the whole-sediment amphipod test, which is currently the most sensitive toxicity test now recommended for determining the acceptability of dredged material for open ocean disposal.

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Robert Scott Carr, Duane Chapman. 2006-12-05. Comparison of solid-phase and pore-water approaches for assessing the quality of marine and estuarine sediments. https://doi.org/10.1080/02757549208055430

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