Effects of natural sediment features on survival of the phoxocephalid amphipod, Rhepoxynius abronius
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Cited by (85)
A quantitative assessment of organic carbon content as a regional sediment-condition indicator
2020, Ecological IndicatorsCitation Excerpt :Various approaches have been used to set such quantitative values (Washington State 1995, Rygg 1995, Hyland et al. 2005, Pelletier et al. 2011). Because percent sediment total organic carbon (TOC) is generally positively correlated with sediment percent fines, which may have impacts on benthic organisms that are independent of organic content (DeWitt et al. 1988, Lamberson et al. 1992), meaningful interpretation of a sediment organic content indicator also requires an assessment of this effect. To address these issues, a quantitative analysis of literature data on sediment organic matter impacts in marine systems was conducted to determine whether abiotic indicators of sediment organic content respond as predicted at larger spatial scales.
Assessing estuarine quality: A cost-effective in situ assay with amphipods
2016, Environmental PollutionCitation Excerpt :In fact, substrate preferences by two sympatric estuarine amphipods (E. marinus and Eulimnogammarus obtusatus) were studied by Maren (1975) as a potential factor to influence their spatial distribution. The granulometric properties of sediment are a key factor modulating survival, growth and reproduction for amphipods (e.g., Costa et al., 1998; DeWitt et al., 1988; Emery et al., 1997). Postexposure feeding rates were adjusted according to these factors.
Separating the effects of water physicochemistry and sediment contamination on Chironomus tepperi (Skuse) survival, growth and development: A boosted regression tree approach
2014, Aquatic ToxicologyCitation Excerpt :Adverse effects on test organisms due to factors other than anthropogenic contaminants may result in sediments incorrectly being classed as toxic. These “false positive” results may be caused by a wide range of experimental artefacts such as the physicochemical characteristics of the test sediment (Ankley et al., 1994), sediment grain size (DeWitt, 1998), and the physicochemistry of the overlying water (ASTM, 1997; OECD, 2010). We used boosted regression tree (BRT) models to examine potential relationships between each endpoint and predictor variables from a large dataset (>200 observations for each endpoint).
Biochemical response of amphipods (Gammarid: Paramorea) in a sediment laboratory exposure from Ushuaia Bay, Beagle Channel
2011, Ecotoxicology and Environmental SafetyCitation Excerpt :Correia and Costa (2000) have found lower toxicity in amphipods Gammarus locusta exposed to metals in fine-grained sediments than in coarse grain. On the other hand, studies with amphipod crustaceans have shown that the toxicity and metal concentrations in interstitial water were reduced when metal-spiked sandy sediments were modified by the addition of fine-grained particles or sewage sludge (Swartz et al., 1985; DeWitt et al., 1988). In this study measurement of CAT, GST AChE and LPO allow monitoring of biological effects that can be due to a variety of compounds, although CAT and LPO were not specifically linked to any of the contaminants analyzed, an effect was observed in the organisms exposed to coastal sediments.
Variability of sediment-contact tests in freshwater sediments with low-level anthropogenic contamination-Determination of toxicity thresholds
2010, Environmental PollutionCitation Excerpt :These sediment properties might also affect the test organisms and thus impede the interpretation of toxicity data. This has already been shown for various benthic organisms in freshwater sediments (Ankley et al., 1994, 1993; Höss et al., 1999; Sibley et al., 1998; Suedel and Rodgers, 1994) and estuarine or marine sediments (DeWitt et al., 1988, 1989; Nipper and Roper, 1995; Swartz et al., 1985). Due to the different ways in which the various benthic organisms interact with sediment (e.g. epibenthic, endobenthic, and tube-dwelling organisms), it is not possible to generalize the influence of sediment properties on organisms.