Search datasets
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The 4 resource surveys (coastal, rivers and streams, lakes and reservoirs, and wetlands) each have datasets covering the biological, chemical, physical habitat, hydrologic and watershed data....
Search relevance: 121.60 | Views last month: 2 | Catalog Last Checked: September 10, 2026 at 06:57 PM -
During 2013-2017, the U.S. Geological Survey, National Water-Quality Assessment (NAWQA) Project, collected water samples year-round from the National Water Quality Network – Rivers and Streams...
Search relevance: 102.47 | Views last month: 3 | Catalog Last Checked: September 10, 2026 at 09:58 PM -
The dataset contains long-term and short-term summaries of streamflow alteration and measures of biological condition (fish multi-metric index). Streamflow alteration metrics include the...
Search relevance: 60.65 | Views last month: 0 | Catalog Last Checked: September 10, 2026 at 08:59 PM -
The U.S. Geological Survey (USGS) has regularly collected fish community data from wadable streams in the Milwaukee, Wisconsin area, beginning with the first recorded sample in 1993 and continuing...
Search relevance: 53.98 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 10:17 PM -
This study quantifying the sensitivity and tolerance of fish species to stressor gradients in the Karun River basin (Western Iran) and to used this information to develop a fish-based tolerance...
Search relevance: 53.46 | Views last month: 14 | Catalog Last Checked: September 10, 2026 at 07:00 PM -
This dataset includes the data that was used for the tidal portion of the joint pilot fish habitat assessment. Additional data for non-tidal waters is being archived by USGS in ScienceBase. This...
Search relevance: 43.90 | Views last month: 2 | Catalog Last Checked: October 26, 2026 at 09:53 PM -
From 12 May – 18 May 2023, a Virginia Tech team of 2-3 sampled the macroinvertebrate community in 30 Upper Northern Piedmont streams (Maryland and Pennsylvania, USA) as part of a larger...
Search relevance: 43.44 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 09:01 PM -
The mission of the National Fish Habitat Action Plan is to protect, restore, and enhance the nation's fish and aquatic communities through partnerships that foster fish habitat conservation and...
Search relevance: 43.24 | Views last month: 3 | Catalog Last Checked: October 24, 2026 at 08:50 PM -
Lake Mead National Recreational Area (LMNRA) serves as critical habitat for several federally listed species and supplies water for municipal, domestic, and agricultural use in the Southwestern...
Search relevance: 42.62 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 09:35 PM -
We used 14 years (10-01-1999 to 09-30-2014) of biological data (benthic macroinvertebrate and stream fish community data and complementary biological metrics) that was collected from Alabama...
Search relevance: 39.04 | Views last month: 10 | Catalog Last Checked: September 10, 2026 at 10:05 PM -
Multibeam echosounder surveys can be used to gather a variety of physical lakebed properties including bathymetry, substrate, and habitat characteristics, by comparing the backscatter and signal...
Search relevance: 35.62 | Views last month: 3 | Catalog Last Checked: September 10, 2026 at 10:37 PM -
In 2007, State leaders in Maryland took a bold step in their efforts to restore the Chesapeake Bay with the creation of the Chesapeake and Atlantic Coastal Bays Trust Fund (Trust Fund). The Trust...
Search relevance: 34.78 | Views last month: 2 | Catalog Last Checked: September 10, 2026 at 06:46 PM -
In 2007, State leaders in Maryland took a bold step in their efforts to restore the Chesapeake Bay with the creation of the Chesapeake and Atlantic Coastal Bays Trust Fund (Trust Fund). The Trust...
Search relevance: 34.74 | Views last month: 0 | Catalog Last Checked: September 10, 2026 at 06:49 PM -
We assessed habitat suitability for salmonids across selected tributaries upstream from three hydroelectric dams on the upper Skagit River in Whatcom County, northern Washington. We used NetMap, a...
Search relevance: 34.00 | Views last month: 3 | Catalog Last Checked: September 10, 2026 at 10:31 PM -
These data show only the locations of Fish IBI study and monitoring sites within the park. The Index of Biotic Integrity (IBI) provides a consistent framework for evaluating fish assemblages using...
Search relevance: 33.47 | Views last month: 0 | Catalog Last Checked: September 10, 2026 at 07:23 PM -
This data release provides a variety of water quality benchmarks, compiled from multiple publications and attributed to the NHDPlus v2.1 hydrography, for the conterminous United States (CONUS) for...
Search relevance: 31.49 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 10:40 PM -
Monitoring wild fish health and associated exposure effects in regions where agriculture and development have impacted rivers and streams has become a valuable research tool. Smallmouth bass...
Search relevance: 31.34 | Views last month: 5 | Catalog Last Checked: September 10, 2026 at 09:28 PM -
This is a MD iMAP hosted service. Find more information on http://imap.maryland.gov. In 2007 - State leaders in Maryland took a bold step in their efforts to restore the Chesapeake Bay with the...
Search relevance: 30.35 | Views last month: 3 | Catalog Last Checked: September 10, 2026 at 06:46 PM -
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. The stream reaches are color coded according to the Combined Index of Biotic Integrity (CIBI) scores of...
Search relevance: 29.71 | Views last month: 5 | Catalog Last Checked: September 10, 2026 at 06:50 PM -
The dataset includes data from six experiments in which adult male fathead minnows were exposed to five concentrations of a per- or polyfluorinated alkyl substance (PFAS) and a 17beta-estradiol...
Search relevance: 29.32 | Views last month: 3 | Catalog Last Checked: September 10, 2026 at 07:00 PM
