Laboratory studies were conducted to examine the effect of water hardness and age of crayfish on the toxicity of environment-based metals mixture. Additionally, the effects of chronic exposure to a metals mixture to egg development in adult F. quadruncus were assessed. Mortality and growth of F. quadruncus were assessed. These data consist of attributes of water quality from toxicity tests and attributes of growth and survival of crayfish (F. quadruncus) from laboratory diluter studies.

Historical lead mining in Madison County, Missouri, USA has left a legacy of metals contamination. Laboratory studies were conducted to examine the effect of water hardness and age of crayfish on the toxicity of environment-based metals mixture. Additionally, the effects of chronic exposure to a metals mixture to egg development in adult crayfish were assessed. These data are comprised of measurements of elements (i.e., cobalt, nickel, copper, zinc, cadmium, lead), major anions (e.g., chloride, sulfate), dissolved organic carbon, and major cations (e.g, sodium, calcium, magnesium) in water samples collected during laboratory-based diluter exposure studies. Measurements of elements (i.e., cobalt, nickel, copper, zinc, cadmium, lead) in tissue samples (crayfish whole bodies, ovaries, leaves, feed) collected during laboratory-based diluter exposure studies are also provided.

Historical lead mining in Madison County, Missouri, USA has left a legacy of metals contamination. Laboratory studies were conducted to examine the effect of water hardness and age of crayfish on the toxicity of environment-based metals mixture. Additionally, the effects of chronic exposure to a metals mixture to egg development in adult crayfish were assessed. These data are comprised of measurements of elements (i.e., cobalt, nickel, copper, zinc, cadmium, lead), major anions (e.g., chloride, sulfate), dissolved organic carbon, and major cations (e.g, sodium, calcium, magnesium) in water samples collected during laboratory-based diluter exposure studies. Measurements of elements (i.e., cobalt, nickel, copper, zinc, cadmium, lead) in tissue samples (crayfish whole bodies, ovaries, leaves, feed) collected during laboratory-based diluter exposure studies are also provided.

Historical lead mining in Madison County, Missouri, USA has left a legacy of metals contamination. Laboratory studies were conducted to examine the effect of water hardness and age of crayfish on the toxicity of environment-based metals mixture. Additionally, the effects of chronic exposure to a metals mixture to egg development in adult crayfish were assessed. These data are comprised of measurements of elements (i.e., cobalt, nickel, copper, zinc, cadmium, lead), major anions (e.g., chloride, sulfate), dissolved organic carbon, and major cations (e.g, sodium, calcium, magnesium) in water samples collected during laboratory-based diluter exposure studies.

Historical lead mining in Madison County, Missouri, USA has left a legacy of metals contamination. Laboratory studies were conducted to examine the effect of water hardness and age of crayfish on the toxicity of environment-based metals mixture. Additionally, the effects of chronic exposure to a metals mixture to egg development in adult crayfish were assessed. These data are comprised of measurements of elements (i.e., cobalt, nickel, copper, zinc, cadmium, lead) in tissue samples (crayfish whole bodies, ovaries, leaves, feed) collected during laboratory-based diluter exposure studies.

Historical lead mining in Madison County, Missouri, USA has left a legacy of metals contamination. Laboratory studies were conducted to examine the effect of water hardness and age of crayfish on the toxicity of environment-based metals mixture. Additionally, the effects of chronic exposure to a metals mixture to egg development in adult crayfish were assessed. These data are comprised of measurements of elements (i.e., cobalt, nickel, copper, zinc, cadmium, lead) in tissue samples (crayfish whole bodies, ovaries, leaves, feed) collected during laboratory-based diluter exposure studies.

Deposits of lead (Pb) and other metals in southeastern Missouri, USA have been exploited since the 1700s. Metal contamination of fish and other aquatic biota, alteration of fish and invertebrate communities, and public health advisories against human consumption of Pb-contaminated fish have resulted. The Little Saint Francis River (LFSR) and its tributaries, which drain the mining-affected areas of Madison County, is inhabited by the St. Francis River crayfish (Faxonius quadruncus; formerly Orconectes quadruncus), an endemic species that has been petitioned for Federal listing as an endangered species. Crayfish population density surveys and in-situ toxicity tests with laboratory-reared F. quadruncus were conducted at sites upstream and downstream of historical mining areas. These data consist of attributes of habitat quality and water quality from study sites located in the LSFR watershed, Madison County, Missouri and attributes of growth and survival of crayfish (F. quadruncus) from 56 day in-situ exposures at the study sites.

This dataset characterizes the acute toxicity of copper and zinc to white sturgeon (~30 days post hatch) and cladocerans (less thab 24 hours old) in waters with varying dissolved organic carbon (DOC) by conducting 96-hour white sturgeon and 48-hour cladoceran copper and zinc exposures in test waters with natural DOC (from pond water) at concentrations ranging from 0.5 to 5.5 mg/L.

Data was collected during a series of studies that assessed the effects of metals on crayfish in mining districts in Missouri. Adult crayfish were collected in riffles to determine whether crayfish densities were lower at sites downstream of mining areas compared to sites upstream of mining areas. Metal concentrations in surface or pore water and less than 2-mm sediment were measured and incorporated into toxic units and sediment probable effects quotients.

Data was collected during a series of studies that assessed the effects of metals on crayfish in mining districts in Missouri. Adult crayfish were collected in riffles to determine whether crayfish densities were lower at sites downstream of mining areas compared to sites upstream of mining areas. Metal concentrations in surface or pore water and less than 2-mm sediment were measured and incorporated into toxic units and sediment probable effects quotients.