Humpback chub (Gila cypha) and mean daily water temperature data, western Grand Canyon - 2000 to 2016

These data were compiled to examine patterns of humpback chub (Gila cypha) in western Grand Canyon from just below Havasu Creek at river kilometer (rkm) 253 (Lees Ferry is rkm 0) downriver to Pearce Ferry at rkm 451. These data represent mean daily water temperatures in degrees Celsius from two USGS gaging locations (2005-2016), catches of individual humpback chub in hoop nets (2005-2016), total lengths of individual humpback chub captured in hoop nets during 2014, 2015 and 2016, and the effort (number of seine hauls) and catch of humpback chub in seines (2000-2016) in the Colorado River. These data were collected by research staff from the Grand Canyon, Monitoring & Research Center, Southwest Biological Science...

Categories: Data; Tags: Colorado River, Diamond Creek, Gila cypha, Hance rapids, Havasu Creek, All tags... Havasu Rapid, Lava Falls, Lava Falls rapids, National Canyon, Peach Springs, Pearce Ferry, Supai, USGS Science Data Catalog (SDC), USGS streamgaging network, biota, captures, catch Rates, data release, degrees Celsius, endangered species, field inventory and monitoring, field monitoring stations, field sampling, fish, fish lengths, hoop nets, humpback chub, inlandWaters, long-term ecological monitoring, mean daily water temperature, population expansion, regulated river, river reach, seine, seine hauls, water temperature, western Grand Canyon, Fewer tags

Methane and nitrous oxide temporal and spatial concentrations in the Iroquois River and Sugar Creek in Northwestern Indiana and Northeastern Illinois, 1999-2003 (ver. 2.0, November 2020)

A comprehensive study of water quality in two streams was conducted in the Midwestern United States in 1999 to 2003. The Iroquois River and Sugar Creek, located in northwestern Indiana and northeastern Illinois have been heavily impacted by agricultural land use and contain relatively high concentrations of inorganic nitrogen, primarily as nitrate. As part of that study, samples were collected and analyzed for dissolved methane and nitrous oxide concentrations to determine greenhouse gas (GHG) concentrations in the streams and the relation of GHG concentrations to concentrations of other inorganic nitrogen species in the water. These data are the results of that study. The data include GHG and nutrient samples collected...

Categories: Data, Data Release - Revised; Tags: Kentland, IN, USGS Science Data Catalog (SDC), biogeochemical processes, greenhouse gas, nutrient content, All tags... river reach, surface water, water quality, Fewer tags

Rhodamine concentration data, Kootenai River, near Bonners Ferry, Idaho, 2008

This data release provides measurements of dye concentration collected to support and validate numerical simulations of dispersion on the Kootenai River, downstream of Bonners Ferry, Idaho. On August 13, 2008, at 06:00, 25.4 kilograms of rhodamine WT was diluted using raw river water in a 378.5 liter tank and released as a nearly single slug. The dye was released near River Kilometer (RKM) 239 over a period of 17 minutes. From 06:01 – 06:10 the dye was released at a fairly constant rate, and from 06:10 – 06:18 the dye was released at a slower rate associated with cleaning and rinsing the tank. Measurements of dye concentration were made using water quality sondes with 6130 rhodamine probes. Two sampling strategies...

Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Bonners Ferry, Idaho, Dispersion, Rhodamine WT-20, River Reach, USGS Science Data Catalog (SDC)