Nearshore Fish Isotope Values, Beaufort Sea, Alaska, 2017-2019

This dataset contains isotope results of stable isotope (δ13C and δ15N) and radicoarbon (F14C) analyses of muscle tissue from fish collected in the nearshore Beaufort Sea, Alaska in summers 2017-2019.

Tags: Alaska, Animal morphology, Animals/vertebrates, Aquatic Ecosystems, Beaufort Sea, All tags... Biota, Body composition, Carbon isotopes, Carbon-14 analysis, Coastal fisheries, Environment, Fish, Isotopic analysis, Jago Lagoon, Kaktovik Lagoon, Light stable isotope analysis, Marine ecosystems, Nitrogen isotopes, Radiocarbon, Ray-finned fishes, Simpson Lagoon, Stable isotopes, Stefansson Sound, USGS:ASC489, Wildlife, Fewer tags

Breeding Biology, Behavior, and Morphology of Emperor Geese and Other Waterfowl near Kokechik Bay, Yukon Delta National Wildlife Refuge, Alaska during 1982-1988

This data package presents legacy data on Emperor Goose, Cackling Goose, Black Brant, and Greater White-fronted Goose, breeding biology, behavior, and morphology collected at study sites near Kokechik Bay on the Yukon Delta National Wildlife Refuge (previously Clarence Rhodes National Wildlife Refuge), Alaska during the summers of 1982 through 1988. These data were collected to provide a basis for the evaluation of long-term changes in Emperor Goose and other waterfowl biology on the Yukon-Kuskokwim Delta, Alaska.

Tags: Alaska, Animal behavior, Animal morphology, Animals/Vertebrates, Biota, All tags... Bird morphology, Birds, Breeding, Breeding productivity, Checklists, Ducks/Geese/Swans, Ecology, Environment, Field activity logs, Field inventory and monitoring, Habitat preferences, Habitats, Kokechik Bay, Lacustrine wetlands, Migratory birds, Nesting behavior, Seasonal distribution, Spatial distribution, USGS:ASC507, United States, Yukon Delta, Yukon Delta National Wildlife Refuge, Yukon-Kuskokwim Delta, Fewer tags

Morphological Measures of Pacific Walruses Collected in the Chukchi and Bering Seas 1972-1991

This dataset contains morphological measures of Pacific walruses sampled in the Chukchi and Bering Seas between 1972 and 1991. From 1972 through 1991 the Soviet Union employed industrial methods to harvest and process Pacific walruses to enhance the Russian Far East economy. Under the oversight of the Pacific branch of the Soviet All-Union Scientific Investigational Institute of Marine Fisheries and Oceanography (VNIRO), offshore harvesting crews worked from specialized marine mammal hunting ships (ZRS) throughout the spring, summer, and early autumn in the marginal sea ice habitats of the Bering and Chukchi Seas. They launched small (~7 m) wooden boats to approach walruses resting on ice pans, which were dispatched...

Tags: Alaska, Animal morphology, Animals/Vertebrates, Bering Sea, Biota, All tags... Body composition, Carnivores, Chukchi Sea, Coastal ecosystems, Environment, Mammals, Marine ecosystems, Marine mammals, Odobenus rosmarus divergens, Pacific Walrus, Pinniped, Russia, Seals/Sea lions/Walruses, Species life history, Threatened species, USGS:ASC589, Walrus, Wildlife, Fewer tags

USGS Alaska Science Center Adult Shorebird Morphological Measurement Data

This dataset consists of three tables, 1) taxonomy, 2) contributors, and 3) shorebird morphological measurements collected from various species captured from 1977-2021. In addition, photographs of plumage patterns are available for several species. Researchers with the U.S. Geological Survey - Alaska Science Center, along with collaborators from many government agencies and research institutions, have studied shorebirds at numerous sites across North America, the Pacific Ocean, Australia, and New Zealand. This release includes over 10,000 observations relating to 35 shorebird species.

Tags: Age estimation methods, Alaska, Alaska Peninsula, Angyoyaravak Bay, Animal morphology, All tags... Animal tracking, Animals/Vertebrates, Arctic Coastal Plain, Argos, Australia, Avian physiology, Biota, Birds, Body size, Broome, Canada, Capturing (animals), Colville River Delta, Environment, GPS, Golden Bay, James Bay, Migratory birds, Mingan Archipelago, Naval Air Station Palmyra, Nevada, New Zealand, North Slope, Oregon, PTT, Plovers, Plumage, Pribilof Islands, Pūkorokoro, Radio transmitter, Saint George Island, Saint Matthew Island, Saint Paul Island, Sandpipers, Satellite transmitter, Seward Peninsula, Shorebirds, USGS:ASC508, VHS, Waders/Gulls/Auks and Allies, Wildlife, Yellowknife, Yukon-Kuskokwim River Delta, Fewer tags

Length, Weight, Energy Density, and Isotopic Values of Fish from Rivers in Northwest Alaska, 2015-2019

This dataset contains length, weight, energy density, and isotope values of fish collected in northwest Alaskan rivers during summer and fall 2015-2019.

Tags: Alaska, Animal morphology, Animals/Vertebrates, Aquatic ecosystems, Arctic, All tags... Arctic grayling, Biota, Carbon isotopes, Coho salmon, Dolly Varden, Environment, Fish, Fisheries, Freshwater ecosystems, Isotopic analysis, Landscape ecology, Landscape processes, Nitrogen isotopes, Northern pike, Pink salmon, Rivers/Stream habitat, Slimy sculpin, Sockeye salmon, Stable isotopes, Sulphur isotopes, USGS:ASC561, Wildlife, Fewer tags