Data

This dataset contains measurements of in situ benthic biofilms from rivers of northwest Alaska during summer and fall 2016-2019. Measurements were made using a Benthotorch (bbe Moldaenke, Kiel, Germany) hand-held fluorometer, which distinguishes taxa (cyanobacteria, green algae, diatoms) and provides estimates of standing biomass.

These data are in three tables with age data for river terraces on the Marsh Creek anticline, from samples collected at sites along Marsh Creek and the Katakturuk River in Arctic Alaska. The tables include: (1) Carbon-14 ages, (2) Optically Stimulated Luminescence (OSL) age, and (3) Cosmogenic Beryllium-10 concentrations.

These data are in one table and contain information on the location, age, sex, and measurements (mass, ninth primary, culmen, and total tarsus) of Steller's Eiders during the flightless molt period. Captures took place at Izembek and Nelson Lagoons on the north side of the Alaska Peninsula.

These data were part of a tracking study of adult female caribou from the Nelchina Herd in Alaska. The dataset is comprised of two comma separated values (.csv) files. Data includes: 1) processed (i.e., erroneous locations removed) GPS locations for caribou, received once per 7 hours (October 1999 to October 2002), and 2) spatial, temporal, and biological attributes of the female caribou...

This dataset provides walrus haulout group outlines in a shapefile format and haulout area sizes in csv format. These data are based on visual interpretation of imagery from aerial surveys by a small uncrewed aerial system (sUAS) operated by the U.S. Geological Survey Alaska Science Center, over large groups of walruses resting onshore near Point Lay, Alaska during September of 2024 and...

This dataset describes the number and detection of Giardia cysts and Cryptosporidium oocysts in water samples collected from creeks and lakes in Anchorage, Alaska during 2021.

This data release contains information derived from fishing efforts and sampled fish from the nearshore Beaufort Sea, Alaska, 2021-2023, as part of a study investigating red-throated loon productivity and diet. The datasets include six tables comprising 1) catch per unit effort (CPUE) data, 2) field-measured lengths of fish (mm), 3) the energy density (kJ/g) and whole-body energy (kJ) of...

This dataset is one table with demographic, morphometric, and blood analyte measurements from whole blood and serum samples taken from a subset of polar bears sampled in Alaska's southern Beaufort Sea during 1989-2012. The measured blood analytes include: blood urea nitrogen, creatinine, glucose, total protein, hemoglobin, red blood cell count, packed cell volume, and hemoglobin A1c...

This dataset consists of the complete set of processed aerial imagery and survey data from walrus haulouts collected by unoccupied aerial system (UAS) surveys near Pt. Lay, Alaska, during the autumn 2024 and 2025. The data include georeferenced optical three band (red, green, blue) aerial images and orthoimages derived from those aerial images through the standardized structure from...

This project aimed to develop methods to estimate spatially explicit survival of wildlife from telemetry data.

These diet data were collected from the Porcupine caribou herd in northern Alaska and Yukon in summer 2021 during 4 periods: calving (occasion 1), post-calving (occasion 2), mosquito harassment (occasion 3), and mid-summer (occasion 4). Diet data was determined by two distinct techniques: DNA metabarcoding data from fecal pellets and video data from camera collars deployed on adult...

This data package contains 3 tables presenting site selection information, basin characteristics, subsidy to streamflow from glacier mass loss data, and other streamflow statistics for selected streamgages in Alaska that were used to evaluate the influence of glacier mass loss on streamflow in Alaska and conterminous basins in Canada. The first ("site_selection_outcomes.csv") contains...