|
The objectives of the Metals Mixtures Project included developing quantitative models that describe and predict harm or lack thereof to aquatic organisms from multiple metals in mineralized rock drainages. Work consists of data analyses and model development using existing data, and original data from laboratory mesocosm and field studies. This product reports data generated from a series of four experiments conducted over four years, testing the toxicity of several metals with aquatic insect communities that were colonized in the field and then transferred and tested in experimental streams at the Fort Collins Science Center. The results are expected to be of interest to those preparing environmental impact...
|
This dataset is from the fourth of four experiments which test the toxicity of several metals with aquatic insect communities that were colonized in the field and then transferred and tested in experimental streams. Here we report original data from testing the toxicity of cobalt (Co), copper (Cu), and nickel (Ni), singly and in mixtures, to natural benthic communities including aquatic insect and algal communities. The methods are the same as those used in Experiment 3, except for the metals combinations. Trays of cleaned gravel were placed in a stream (the Cache La Poudre River, Colorado) and allowed to colonize for about 40 days before being translocated to Aquatic Experimental Stream Laboratory (AXL) which was...
|
This dataset is from the second of four experiments which test the toxicity of several metals with aquatic insect communities that were colonized in the field and then transferred and tested in experimental streams. Here we report original data from testing the toxicity of cadmium (Cd), zinc (Zn), and copper (Cu) singly and in mixtures, to natural aquatic insect communities. Thus, the exposures reproduced those in experiment 1, with the addition of a third metal, Cu Trays of cleaned gravel were placed in a stream (the Cache La Poudre River, Colorado) and allowed to colonize for about 40 days before being translocated to Aquatic Experimental Stream Laboratory (AXL) which was located at the USGS Fort Collins Science...
|
Native trout in the West suffer a high degree of vulnerability, as highlighted by cutthroat trout, a group of 14 subspecies, most of which have been petitioned for listing under the Endangered Species Act (ESA). In the Southern Rocky Mountains, greenback cutthroat trout (Oncorhynchus clarkii stomias; GBCT) are listed as threatened under the ESA, and few populations remain, in part because of the invasion of nonnative fishes (for example, brook trout, Salvelinus fontinalis). In an effort to restore GBCT to their native range, chemical treatments (piscicides) are often used as a tool to remove nonnative fishes prior to reintroducing native fish. However, the influence of the piscicides on nontarget organisms, such...
Categories: Data;
Tags: Aquatic Biology,
Browns Lake,
Colorado,
Dry Gulch,
Ecology, All tags...
George Creek,
Herman Gulch,
Mirror Lake,
USGS Science Data Catalog (SDC),
Water Quality,
benthic macroinvertebrate,
biota,
greenback cutthroat trout,
piscicide,
zooplankton, Fewer tags
|
These data have been collected as part of a cooperative project between the U.S. Geological Survey (USGS) and the U.S Environmental Protection Agency. This project began in 2016 and consisted of a mesocosm experiment quantifying short term responses by a transplanted natural diatom dominant algae community exposed to gradients of nitrogen, phosphorous, and a mixture of both nitrogen and phosphorus. The data consist of water quality parameters such as temperature and pH as well as aqueous nutrient concentrations and algae responses, including chlorophyll a concentrations, algae dry mass, algae ash-free dry mass, and intra-cellular phosphorus and nitrogen in algae. Algae growth rates were estimated from these data...
Categories: Data;
Tags: Aquatic Biology,
Droop,
Ecology,
Environmental Health,
Monod, All tags...
Nitrogen,
Phosphorus,
QUAL,
USGS Science Data Catalog (SDC),
WASP,
Water Quality,
biota,
diatom growth rate,
mesocosm,
water quality model parameterization, Fewer tags
|
View more...
|