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Chemical and biological data from acute and chronic exposure to sodium nitrate and sodium sulfate for several freshwater organisms in water-only bioassays Chemical and biological data from acute and chronic exposure to sodium nitrate and sodium sulfate for several freshwater organisms in water-only bioassays
The responses (survival, growth, and/or reproduction) of test organisms in six concentrations of toxicants in several test waters with different water quality characteristics. In addition to the individual biological data, chemical, and water quality measurements from each toxicity test are also reported. Test organisms include unionid mussels (Lampsilis siliquoidea, Villosa iris), a...
09484201 - Bear Creek above Bear Canyon Road, near Tucson, AZ - 2019/02/15 GPS Survey 09484201 - Bear Creek above Bear Canyon Road, near Tucson, AZ - 2019/02/15 GPS Survey
The dataset contains GPS survey data from two surveys conducted after a flow event on February 15, 2019, at the USGS continuous slope-area (CSA) gage 09484201 - Bear Creek above Bear Canyon Road, near Tucson, AZ. The CSA gage is located downstream from Pima County Regional Flood Control District ALERT gage 2184 - Bear Canyon Wash near Bear Canyon Rd. The first survey, on February 19...
Walla Walla Project Area Surface Water Sites Walla Walla Project Area Surface Water Sites
Walla Walla Project Area Surface Water Sites
Preliminary data from animal borne cameras on loggerhead sea turtles in St. Joseph Bay, Florida (2018-2019) Preliminary data from animal borne cameras on loggerhead sea turtles in St. Joseph Bay, Florida (2018-2019)
This is a fifty-four second video which includes short segments compiled from video collected using GoPro cameras mounted on two individual loggerhead turtles (Caretta caretta) within St. Joseph Bay, Florida as part of a preliminary data release for U.S. Geological Survey (USGS) outreach publications. Approximately 90 minutes of video footage was collected per individual prior to...
USGS Great Lakes lake trout egg thiamine monitoring data release USGS Great Lakes lake trout egg thiamine monitoring data release
Monitoring of vitamin B1 (thiamine) in the eggs of lake trout (Salvelinus namaycush) collected from lakes Huron and Michigan has been conducted by the U.S. Geological Survey since the mid-1990?s. The results of this monitoring effort have been used by natural resource management agencies and native American tribes within the Great Lakes basin to evaluate the reproductive health of lake...
Specific conductance and water chemistry data for selected rivers and creeks in Yellowstone National Park, beginning in 2010 (ver. 3.0, November 2025) Specific conductance and water chemistry data for selected rivers and creeks in Yellowstone National Park, beginning in 2010 (ver. 3.0, November 2025)
Measuring the thermal output of Yellowstone’s large magmatic system is not straightforward, as there are thousands of thermal features spread across 3470 square miles. One way to capture and integrate the thermal discharge from this broad area is to monitor river chemistry, because thermal water discharge eventually enters a nearby river, which acts as a collection and delivery system...