• Organization: Department of the Interior
• Updated: 2021-09-02T00:00:00Z

Age estimates of Lake Superior Kiyi (Coregonus kiyi) from scales and otoliths were compared from fish collected in 2014 and 12 years (2003–2014) of length frequency data were examined to assess...

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• Organization: Department of the Interior
• Updated: 2022-02-17T00:00:00Z

Field data of age-0 smallmouth bass (Micropterus dolomieu) estimated age, lengths and weights, distribution from field sampling, and results from environmental DNA surveys from the Yellowstone...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2006-03-01T00:00:00.000+00:00

This Bonneville Power Administration (BPA) - funded project pays for NOAA staff to operate the adult salmon trap located in the fish ladder at Lower Granite Dam. The trap is operated to provide...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2025-10-08T21:48:13.000+00:00

Scales are collected annually from smolt trapping operations in Maine as wellas other sampling opportunities (e.g. marine surveys, fishery sampling etc.). Scale samples are imaged and age,...

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• Organization: Department of the Interior
• Updated: 2024-03-27T00:00:00Z

This release includes data used to evaluate the structure and function of the Ross Lake and Diablo Lake food webs. This includes data on zooplankton density and production (zooplankton_density.csv...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2025-05-15T19:15:44.000+00:00

Maternal effects on the quality of progeny can have direct impacts on population productivity. Rockfish are viviparous and the oil globule size of larvae at parturition has been shown to have...

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• Organization: Department of the Interior
• Updated: 2025-07-29T00:00:00Z

Tabular dataset containing over 6,000 records of sampling data from Bering Cisco relating to life history parameters such as age, length, weight, and sex.

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2025-03-31T17:30:06.000+00:00

North Pacific Observer Program observers collect fish otoliths as part of their standard duties. Otolith collections follow a randomized sample design detailed in the Observer Sampling Manual...

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• Organization: U.S. Department of Health & Human Services
• Updated: 2025-09-06

This brief summarizes the existing guidance and recommendations related to identifying, sampling, and surveying youth in the follow-up population at age 19. Metadata-only record linking to the...

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• Organization: U.S. Department of Health & Human Services
• Updated: 2025-09-05

This brief summarizes the existing guidance and recommendations related to identifying, sampling, and surveying youth in the follow-up population at age 19. Metadata-only record linking to the...

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• Organization: Department of the Interior
• Updated: 2025-02-21T00:00:00Z

This data set contains information regarding the sampling of avian influenza viruses from mallard ducks at locations in Anchorage and Fairbanks, Alaska 2012-2015. Data pertaining to wild birds...

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• Organization: Department of the Interior
• Updated: 2024-04-04T00:00:00Z

Dataset contains sampling information (site, location, and date of sampling) for largemouth bass and silver carp captured in La Grange Pool of the Illinois River during 2015 used to determine the...

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• Organization: Department of the Interior
• Updated: 2022-05-02T00:00:00Z

The Ogallala aquifer is contained in the Tertiary-age Ogallala Formation in the Texas Panhandle and is the primary water-bearing hydrogeologic unit of the High Plains aquifer system. The Ogallala...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2013-01-01T00:00:00.000+00:00

The ROCKFISH database houses data from rockfish species collected by the SWFSC FED along the California coast as part of a reproductive study originating in the winter of 2009 to assess spatial,...

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• Organization: Department of the Interior
• Updated: 2025-08-05T00:00:00Z

Data set containing avian influenza sampling information for spring and summer waterbirds on the Yukon Kuskokwim Delta, 2015. Data contains sample ID, species common name, age and sex, collection...

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• Organization: Department of the Interior
• Updated: 2023-03-09T00:00:00Z

The U.S. Geological Survey (USGS) in cooperation with the Miami Conservancy District, Dayton, Ohio, in 2019 and 2020 investigated the occurrence of per- and polyfluoroalkyl substances (PFAS) in...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2015-01-01T00:00:00.000+00:00

This dataset is from a study examining the use of demersal and pelagic habitats in the southeast Bering Sea by age-0 Pacific cod, based on 4 years of demersal trawl surveys and 1 year of pelagic...

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• Organization: Department of the Interior
• Updated: 2024-04-24T00:00:00Z

In 2016, for the first time, an abundance of age-0 silver carp (Hypophthalmichthys molitrix) were captured at several sites upstream of Lock and Dam 19 on the Upper Mississippi River near Keokuk,...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2015-12-01T00:00:00.000+00:00

The primary objectives are to conduct fieldwork to 1) extend time series of age-0 walleye pollock abundance off east Kodiak Island and in the Semidi Bank vicinity, and 2) test the utility of...

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• Organization: Department of the Interior
• Updated: 2020-08-27T00:00:00Z

This data release documents nine Microsoft Excel tables that contain data for understanding groundwater ages in the Glacial aquifer system. Results for the four sample networks (PAS, principal...

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