Ampelisca abdita

Barber, T.R., D.J. Chappie, D.J. Duda, P.C. Fuchsman, and B.L. Finley. 1998. Using a spiked sediment bioassay to establish a no-effect concentration for dioxin exposure to the amphipod Ampelisca abdita. Environ. Toxicol. Chem. 17 420-424. 

P 10.6 Estimating the Lethal Body Burden (LBB,) for 4-Nonylphenol for the Marine Amphipod, Ampelisca abdita, and Setting a Corresponding Sediment Quality Criterion... 

The marine amphipod Ampelisca abdita is a suspension and deposit feeder and it often occurs as a numerically dominant member of benthic communities (Fay et al., 2000). It can also serve as an important food source for bottom-feeding fish. 4-nonylphenol is a degradation product from detergents (see Fig. 2.16). Its relevant physical-chemical properties are given in Appendix C. 

You are interested in the well-being of Ampelisca abdita, living in a harbor whose sediments are contaminated with 4-nonylphenol. You remember that the lethal volume fraction of narcotic chemicals in membranes is about 0.01 L compound L I lipid. If the sediment contains 2% organic carbon by weight, and the amphipod is assumed to accumulate body burdens up to equilibrium with the sediments on which it lives, what sediment concentration of 4-nonylphenol should be deemed acceptable with respect to baseline toxicity Assume a log ,lipsw = 5.5 for 4-nonylphenol. Use Eq. 9-26c (alkylated and chlorinated benzenes ) for estimating Kioc. Compare your result with the findings of Fay et al. (2000), who observed a die-off of half the amphipods when they were exposed to about 0.16 g 4-nonylphenol - kg-1 sediment. 

Fay, A. A., B. J. Brownawell, A. A. Elskus, and A. E. McElroy, Critical body residues in the marine amphipod Ampelisca abdita Sediment exposures with nonionic organic contaminants , Environ. Toxicol. Chem., 19, 1028-1035 (2000). 

Ferretti JA, Calesso DF, Lazorchak JM, Dolce TJ, Arnold J, Goodfellow WL, Smith ME, Serbst J. 2004. Interlaboratory comparison of a reduced volume marine sediment toxicity test method using the amphipod Ampelisca abdita. Environ Toxicol Chem 23 632-637. 

Ampelisca abdita and Americamysis bahia (USEPA, 1994a)... 

Kuhn A, Munns Jr WR, Serbst J, Edwards P, Cantwell MG, Gleason T, Pelletier MC, Berry W. 2002. Evaluating the ecological significance of laboratory response data to predict population-level effects for the estuarine amphipod Ampelisca abdita. Environ Toxicol Chem 21 865-874. 

Picric acid Ampelisca abdita 1.10 BLDb BLD BLDb BLDb 10 10... 

The toxicity of fine-grained and sandy sediments spiked with 2,6-DNT was examined using the amphipod Ampelisca abdita in 10-d exposures [10], No significant lethal effects were observed in any treatment (Table 5.2). Because the highest 2,6-DNT measured concentration in sediments used in toxicity evaluations was relatively low (25 nmol g ), the effects of 2,6-DNT at concentrations representative of the lethal range for other nitroaromatic compounds are unknown. Reports of the toxicity of sediments spiked with 2,6-DNT transformation products were not found in the available literature. 

In another study, a 10-day survival test with the amphipod Ampelisca abdita, a 48-h survival and development test with bivalve Mulinia lateralis embryos exposed to sediment elutriates, and a Microtox test on methylene chloride extracts were used. Chemicals measured in the sediments included metals, PAHs, and the usual chlorinated pesticides and PCBs. For most of the contaminants the mean concentrations in toxic and non-toxic samples did not differ very much. This indicates that many contaminants contribute to the toxicity. PAHs were most consistently correlated with the toxicity [50]. 

Ampelisca abdita PDMS dosed in marine sediment 230o Survival... 

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