Lethal and Sublethal Effects of Azulene and Longifolene to Microtox®, Ceriodaphnia dubia, Daphnia magna, and Pimephales promelas

Lethal and sublethal effects of azulene and longifolene to Microtox(R), Ceriodaphnia dubia, Daphnia magna, and Pimephales promelas.

The data from this study were needed to investigate the aquatic toxicity of the natural compounds azulene and longifolene, which were representatives of nearly 500 compounds of 19 chemical classes tentatively identified in Laurentian Great Lakes fish (Hesselberg and Seelye 1982; Passino and Smith 1987). There are growing concerns over the potential toxic and ecological effects of these hydroand...

Acute toxicity of thallium to Daphnia magna and Ceriodaphnia dubia.

Influences of water chemistry on the acute toxicity of lead to Pimephales promelas and Ceriodaphnia dubia.

The acute toxicity of lead (Pb) was examined for fathead minnows (Pimephales promelas; 96-h) and daphnids (Ceriodaphnia dubia; 48-h) in waters modified for hardness (as CaSO₄), dissolved organic carbon (DOC; as Aldrich humic acid) and alkalinity (as NaHCO₃) for parameterization of an acute freshwater biotic ligand model (BLM). Additionally, acute (96-h) and chronic (30-d) bioassays were perform...

Multi-linear regression models predict the effects of water chemistry on acute lead toxicity to Ceriodaphnia dubia and Pimephales promelas.

The current study examined the acute toxicity of lead (Pb) to Ceriodaphnia dubia and Pimephales promelas in a variety of natural waters. The natural waters were selected to range in pertinent water chemistry parameters such as calcium, pH, total CO(2) and dissolved organic carbon (DOC). Acute toxicity was determined for C. dubia and P. promelas using standard 48h and 96h protocols, respectively...

The Effects of Suspended Sediment on the Aquatic Organisms Daphnia magna and Pimephales promelas

Land use change results in soil migration into aquatic streams during storm events. This suspended sediment, even in the absence of adsorbed contaminants, may be a significant stressor to aquatic organisms. In some parts of the US, total suspended solids (TSS) concentrations surpass 100,000 mg/L during storm events. The limited data on effects of suspended sediment concentrations on freshwater ...