Data from Black Brant (Branta bernicla nigricans) Overwintering in Three Lagoons Along the Baja California Peninsula, Mexico

This data package includes 2 child items with data from Pacific Black Brant (Branta bernicla nigricans) during winter and migration periods. Child Item 1: "Body mass, Morphological Measurements, Flock Counts, and Age-Ratios from Black Brant Overwintering in Three Lagoons Along the Baja California Peninsula, Mexico". The data include: (1) body mass and morphological measurements from sport hunter harvested brant, and (2) census counts of brant in Bahia de San Quintin, (3) counts for flock age ratio determination, and (4) behavior. Child Item 2: "Black Brant (Branta bernicla nigricans) Radio Detection and Migration Timing Alaska to Mexico". Data from brant tagged with VHF radio transmitters in July 1999 on the Yukon...

Categories: Data; Tags: Alaska, Animal populations, Animals/Vertebrates, Bahia San Quintín, Baja California, All tags... Baja California Sur, Biota, Birds, Black Brant, Branta bernicla nigricans, Brent Goose, Coastal ecosystems, Ecological dynamics, Environment, Izembek National Wildlife Refuge, Laguna Ojo de Liebre, Laguna San Ignacio, Mexico, Migratory birds, Population dynamics, Species life history, Species/population interactions, USGS Science Data Catalog (SDC), Waterfowl, Wildlife, Wildlife Biology, Yukon Delta, Yukon Delta National Wildlife Refuge, Yukon Kuskokwim Delta, Fewer tags

Counts of Birds in Aerial Photos from Fall Waterfowl Surveys, Izembek Lagoon, Alaska, 2017-2019

This dataset includes tables summarizing image information and bird counts from the aerial digital images taken over open water at Izembek Lagoon in Alaska in fall 2017-2019. These summaries list one record per image and provide the camera parameters, latitude, longitude, altitude, and automated and manual counts representing the total number of birds in each taxon (brant, white-cheeked geese, emperor geese, gulls, and other birds) identified in the image. The original images (.JPG format) and annotations are provided in an accompanying USGS data release (Weiser et al. 2022).

Categories: Data; Tags: Aerial photography, Aerial surveys, Alaska, Alaska Peninsula, Animals/Vertebrates, All tags... Anser canagicus, Aquatic ecosystems, Biota, Birds, Branta bernicla, Branta hutchinsii, Coastal ecosystems, Ducks/Geese/Swans, Environment, Estuarine habitat, Image collections, Izembek Lagoon, Izembek National Wildlife Refuge, Migratory birds, Migratory species, Photography, Population dynamics, Relative abundance analysis, Tundra ecosystems, USGS Science Data Catalog (SDC), Waders/Gulls/Auks and Allies, Waterfowl, Wetland ecosystems, Wildlife, Wildlife Biology, Fewer tags

Point Sampling Data for Eelgrass (Zostera marina) and Widgeongrass (Ruppia marina) Abundance in Embayments of the North Pacific Coast of Baja California, Mexico

These data are in seven tables relating to surveys of eelgrass (Zostera marina) and widgeongrass (Ruppia maritima) beds in embayments of the north Pacific coast of Baja California, Mexico. The tables provide environmental conditions, eelgrass and widgeongrass abundance, and measurements used to estimate their aboveground biomass. These tables also provide information on percent cover, location, and tide height of eelgrass, widgeongrass and seaweeds, and water conditions during the survey. Version History: First release: March 2022 Revised: April 2023 (ver. 2.0)

Categories: Data; Tags: Algae, Algae, Angiosperms (flowering plants), Animal and plant census, Aquatic Biology, All tags... Aquatic ecosystems, Aquatic plants, Bahia San Quintin, Baja California, Benthic habitat, Biological productivity, Biomass, Biota, Coastal ecosystems, Ecology, Eelgrass, Environment, Estuarine ecosystems, Field inventory and monitoring, Laguna Ojo de Liebre, Laguna San Ignacio, Macroalgae (seaweeds), Marine ecosystems, Mexico, Monocots, Plot sampling, Relative abundance analysis, Ruppia maritima, Seagrass, Seagrass beds, Seaweeds, USGS Science Data Catalog (SDC), Vascular plants, Widgeongrass, Zostera marina, Fewer tags

Child Item 04: Forage Fish Aerial Validation Data from Prince William Sound, Alaska

This is a child item of the USGS Data Release: https://doi.org/10.5066/F74J0C9Z One table with data used to validate aerial fish surveys in Prince William Sound, Alaska. Data includes: date, location, latitude, longitude, aerial ID, validation ID, total length and validation method. Various catch methods were used to obtain fish samples for aerial validations, including: cast net, go pro, hydroacoustics, jig, dip net, gill net, purse seine, photo and visual identification. Version History: First release: April 2017 Revised: February 2021 (ver. 2.0) Revised: March 2023 (ver. 3.0) Revised: September 2024 (ver. 4.0)

Categories: Data; Tags: Alaska, Animals/Vertebrates, Aquatic Biology, Biota, Coastal ecosystems, All tags... Ecology, Environment, Fish, Fisheries, Food fishes, Forage fish, Gulf of Alaska, Marine ecosystems, Marine fishery resources, Oceans, Pelagic habitat, Prince William Sound, USGS Science Data Catalog (SDC), Wildlife Biology, Fewer tags

SUPERSEDED: Pacific Walrus Coastal Haulout Occurrences Interpreted from Satellite Imagery, 2023

This data release has been SUPERSEDED. No data are provided here. The geospatial outlines and herd size estimates of Chukchi Sea autumn walrus haulouts, interpreted from Satellite imagery, have been combined into a single updated U.S. Geological Survey data release: https://doi.org/10.5066/P9CSM0KN This data release contains maps, geospatial files, and a table of the satellite imagery types with the dates when they were collected and examined to interpret the presence of, and area occupied by, walruses at terrestrial haulouts. Estimates of the land area occupied by walruses are provided based on interpretation by experienced image reviewers. The images are from a variety of Earth observing satellite imagery sources...

Tags: Alaska, Animals/vertebrates, Biota, Cape Serdtse-Kamen, Carnivores, All tags... Chukchi Sea, Chukotka, Coastal ecosystems, Environment, Field inventory and monitoring, Image collections, Mammals, Marine ecosystems, Marine mammals, Migratory species, Odobenus rosmarus divergens, Pacific Walrus, Pinniped, Point Lay, Remote sensing, Russia, Satellite imagery, Seals/sea lions/walruses, Seasonal distribution, USGS Science Data Catalog (SDC), Walrus, Wildlife, Fewer tags

Tracking Data for Buff-breasted Sandpipers (Calidris subruficollis)

This data package includes 2 child items with tracking data of buff-breasted sandpiper, a shorebird species that breeds only in Arctic Alaska and Canada, spending the winter in the grasslands of Brazil, Uruguay, and Argentina after a lengthy migration. Child Item 1: "Argos and GPS Satellite Tracking Data for Buff-breasted Sandpipers (Calidris subruficollis) - Processed Data" - Quality-controlled data collected from Argos and Argos-linked GPS satellite transmitters. Child Item 2: "Argos and GPS Satellite Tracking Data for Buff-breasted Sandpipers (Calidris subruficollis) - Raw Data" - All raw data collected from Argos and Argos-linked GPS satellite transmitters, provided for completeness of the archive. **The quality-controlled,...

Categories: Data; Tags: Alaska, Animal tracking, Animals/Vertebrates, Argentina, Argos, All tags... Biota, Birds, Brazil, Breeding sites, Buff-breasted Sandpiper, Calidris subruficollis, Capture-recapture studies, Central Americas flyway, Coastal ecosystems, Environment, GPS, Migratory birds, Migratory rates/routes, Migratory species, Ornithology, Overwintering, PTT, Platform Transmitter Terminal, Satellite transmitter, Seasonal distribution, Seasonal movement, Species life history, Tagging devices, Telemetry, Texas, Tracking equipment, USGS Science Data Catalog (SDC), Uruguay, Waders/Gulls/Auks and Allies, Wildlife, Wildlife Biology, Fewer tags

Intertidal and Subtidal Sea Otter Prey Sampling in Mixed Sediment Habitat in Glacier Bay National Park and Preserve, Alaska, 1998 to 2011

This dataset provides clam species abundance and size data from intertidal and subtidal mixed sediment habitats in Glacier Bay National Park and Preserve (GBNPP). Data are provided for all observed clams, horse mussels, or urchins 14 mm or larger. Sampling involved excavating 25 cm of substrate from quadrats (approximately 0.25 sq meter) along transects at random and selected sites, 10 quadrats at the 0 Mean Lower Low Water (MLLW) tide level for intertidal sampling and 20 quadrats at approximately 9 m depth for subtidal sampling. Site and taxonomic information are provided. Abundance and size data are provided in two tables with different data configurations: (1) a compact version with data for those species observed...

Categories: Data, Data Release - Revised; Tags: Alaska, Animal and plant census, Aquatic Biology, Aquatic biology, Benthic habitat, All tags... Benthos, Biota, Bivalves, Clam, Coastal ecosystems, Ecology, Environment, Glacier Bay National Park and Preserve, Macroinvertebrates, Marine ecosystems, Mollusks, Mollusks, Sea urchin, Trophic relationships, USGS Science Data Catalog (SDC), Wildlife, Wildlife Biology, Fewer tags

Microsatellite Genetic Data for Sea Sandwort (Honckenya peploides) and Merckia (Wilhelmsia physodes), Alaska, 2009-2016

This dataset contains sampling information and genetic data of 12 novel microsatellite loci developed and polymorphic in the Sea Sandwort (Honckenya peploides) and screened in Merckia (Wilhelmsia physodes) from Alaska. The allele sizes for the 12 microsatellite loci developed in this study are included for two populations of Sea Sandwort (Fossil Beach, Kodiak and Egg Bay, Atka) and one population of Merckia (upper Coleen River, Brooks Range).

Categories: Data; Tags: Alaska, Aleutian Islands, Angiosperms (Flowering Plants), Biogeography, Biota, All tags... Botany, Coastal Ecosystems, Dicots, Environment, Gene flow, Genetic diversity, Genetic diversity, Genetic variance, Genetics, Genetics, High-Throughput Nucleotide Sequencing, Indigenous vegetation, Microsatellite repeats, Plants, Polymerase chain reaction, Population dynamics, Population genetics, Ruderal environments, Seed dispersal, Terrestrial ecosystems, Terrestrial environments, USGS Science Data Catalog (SDC), Fewer tags

Child Item 08: Hydroacoustic Survey Data from Prince William Sound, Alaska

This is a child item of the USGS Data Release: https://doi.org/10.5066/F74J0C9Z Multiple tables (one for each sample station and frequency) with echointegration data from forage fish survey transects in Prince William Sound, Alaska. Each file contains analysis exports from EchoView Software Pty Ltd. ver. 7.1.29.30212. Version History: First release: April 2017 Revised: February 2021 (ver. 2.0) Revised: March 2023 (ver. 3.0) Revised: September 2024 (ver. 4.0)

Tags: Acoustic backscatter, Alaska, Aquatic Biology, Biota, Coastal ecosystems, All tags... Ecology, Environment, Fisheries, Fishery technology, Gulf of Alaska, Hydroacoustics, Marine ecosystems, Marine fishery resources, Oceans, Pelagic habitat, Prince William Sound, USGS Science Data Catalog (SDC), Wildlife Biology, Zooplankton, Fewer tags

Genetic Data from Barrow's Goldeneye and Common Goldeneye

This data set describes nuclear microsatellite genotypes derived from eight autosomal loci (Aph02, Aph11, Aalµ1, Sfiµ4, Smo4, Smo7, Smo12, and Sfiµ8) and accession numbers for double digest restriction-site associated DNA (ddRAD) sequences.

Categories: Data; Tags: Alaska, Alleles, Animals/Vertebrates, Barrow's Goldeneye, Biota, All tags... Birds, British Columbia, Bucephala clangula, Bucephala islandica, Canada, Coastal ecosystems, Common Goldeneye, DNA, Denmark, Environment, Estuarine habitat, Gene flow, Genetic markers, Genetics, Genetics, Genotype, Microsatellite Repeats, Migratory birds, Ontario, Polymerase chain reaction, Population genetics, Terrestrial ecosystems, USGS Science Data Catalog (SDC), Waterfowl, Waterfowl, Wildlife, Wildlife Biology, Yukon Territory, Fewer tags

Aerial Photo Imagery from Fall Waterfowl Surveys, Izembek Lagoon, Alaska, 2017-2019

The imagery and annotations presented here were generated while testing an aerial photographic survey design to improve repeatability, transparency, and estimation of variance for annual population estimates of geese staging at Izembek Lagoon, Alaska. This dataset includes 1) 131,031 .JPG images captured from a small fixed-wing occupied aircraft, usually at an altitude of about 457 m, over Izembek Lagoon; 2) annotations of objects (geese, ducks, and gulls) assigned by an automated algorithm, and 3) manually corrected annotations that were edited by project staff for only those photos automatically identified as containing geese of any species. The photos were captured at predetermined points to systematically sample...

Categories: Data; Tags: Aerial photography, Aerial surveys, Alaska, Alaska Peninsula, Animals/Vertebrates, All tags... Anser canagicus, Aquatic ecosystems, Biota, Birds, Branta bernicla, Branta hutchinsii, Coastal ecosystems, Ducks/Geese/Swans, Environment, Estuarine habitat, Image collections, Izembek Lagoon, Izembek National Wildlife Refuge, Migratory birds, Migratory species, Photography, Population dynamics, Relative abundance analysis, Tundra ecosystems, USGS Science Data Catalog (SDC), Waders/Gulls/Auks and Allies, Waterfowl, Wetland ecosystems, Wildlife, Wildlife Biology, Fewer tags

Bioenergetics and Morphology of Mussels (Mytilus trossulus) in Kenai Fjords National Park

This dataset provides one table of bioenergetic and morphological measurements of Pacific blue mussels (Mytilus trossulus; N = 444) collected at three intertidal sites in Kenai Fjords National Park, Alaska. Mussels were collected at the same tidal height across all three sites on a nearly monthly basis from 2014-2015.

Categories: Data; Tags: Aialik Bay, Alaska, Animal morphology, Animals/Invertebrates, Aquatic Biology, All tags... Bioenergetics, Biomass dynamics, Biota, Bivalves, Calorimetry, Coastal ecosystems, Ecology, Environment, Gulf of Alaska, Intertidal environments, Kenai Fjords National Park, Macroinvertebrates, Marine ecosystems, Mollusks, Resurrection Bay, Shellfish, USGS Science Data Catalog (SDC), Wildlife Biology, Fewer tags

Pathogen Exposure Data for Chukchi Sea Polar Bears 1988-1994 and 2008-2017

This dataset is one table with results of tests to determine exposure of Chukchi Sea polar bears to a suite of pathogens. Results are serological tests for antibodies and tests of fecal samples for presence of parasites. Serologic assays were conducted for Toxoplasma gondii, Neospora caninum, Francisella tularensis, Coxiella burnetii, Leptospira spp., Brucella canis, Brucella abortus/suis, and canine distemper virus. Parasitology analyses were conducted for presence of Giardia cysts and Cryptospiridium oocysts in fecal samples. Polar bears were sampled on sea ice in the Chukchi Sea between mid-March and early May 1987-1994 and 2008-2017. The dataset includes relevant information about the bears that were captured...

Categories: Data; Tags: Age composition, Alaska, Animals/Vertebrates, Bacterial diseases, Bears, All tags... Beaufort Sea, Biota, Brucella, Brucella abortus, Brucella canis, Carnivores, Chukchi Sea, Coastal ecosystems, Coxiella, Coxiella burnetii, Cryptosporidium, Disease detection, Environment, Francisella, Francisella tularensis, Giardia, Health and disease, Immunology, Mammals, Marine ecosystems, Marine mammals, Neospora, Neospora caninum, Parasitic diseases, Parasitism, Pathology, Polar bear, Serology, Toxoplasma, Toxoplasma gondii, USGS Science Data Catalog (SDC), Ursus maritimus, Viruses, Wildlife, Wildlife Biology, Wildlife Disease, Wildlife disease, Fewer tags

Walrus Haulout Outlines Apparent from Satellite Imagery Near Point Lay Alaska, Autumn 2018-2020

These data are in three folders of Keyhole Markup Language (KML) geospatial polygons representing the outlines of walrus herds apparent in satellite imagery. Each KML file contains one or more geospatial polygons of walrus herd outlines created by one observer who visually interpreted the images. The attribute values from all KML files are collected in a CSV table included with this data package. Additional walrus satellite image-derived Chukchi Sea walrus haulout outlines are available in another USGS data release (Fischbach and Douglas 2022; https://doi.org/10.5066/P9CSM0KN)

Categories: Data; Tags: Aerial surveys, Age composition, Alaska, Animals/Vertebrates, Biota, All tags... Carnivores, Chukchi Sea, Coastal ecosystems, Environment, Field inventory and monitoring, Mammals, Marine ecosystems, Marine mammals, Migratory species, Odobenus rosmarus divergens, Pacific Walrus, Point Lay, Remote sensing, Seals/sea lions/walruses, Seasonal distribution, USGS Science Data Catalog (SDC), Walrus, Wildlife, Wildlife Biology, Fewer tags

Child Item 2: Black Brant (Branta bernicla nigricans) Radio Detection and Migration Timing Alaska to Mexico

This is a child item of the USGS Data Release: https://doi.org/10.5066/F7T43R88 This data package provides data from Pacific Black Brant (Branta bernicla nigricans) tagged with VHF radio transmitters in July 1999 on the Yukon Kuskokwim Delta, Alaska and detected in the following two years during their annual migration. Data include: 1) one table with attributes of the tagged brant, 2) one table with estimated dates of migration events, and 3) seven tables of detection data from radio tracking scans at coastal sites between Alaska and Mexico. Version History: First release: April 2023 Revised: February 2024 (ver. 2.0)

Categories: Data; Tags: Alaska, Animal populations, Animals/Vertebrates, Bahia San Quintín, Baja California, All tags... Baja California Sur, Biota, Birds, Black Brant, Branta bernicla nigricans, Brent Goose, Coastal ecosystems, Ecological dynamics, Environment, Izembek National Wildlife Refuge, Laguna Ojo de Liebre, Laguna San Ignacio, Mexico, Migratory birds, Population dynamics, Species life history, Species/population interactions, USGS Science Data Catalog (SDC), Waterfowl, Wildlife, Wildlife Biology, Yukon Delta, Yukon Delta National Wildlife Refuge, Yukon Kuskokwim Delta, Fewer tags

Gulf Watch Alaska, Nearshore Monitoring Component: Sea Otter Foraging Observations from Prince William Sound, Katmai National Park and Preserve, and Kenai Fjords National Park, 2012-2016

This data is part of the Gulf Watch Alaska (GWA) long term monitoring program, benthic monitoring component and a seasonal diet study in Kenai Fjords National Park. The dataset is a comma separated file exported from a Microsoft Access database. The data consists of observations made of foraging sea otters (Enhydra lutris). Observers used Questar field model spotting scopes and binoculars to identify prey. Date, local time, dive duration, success, prey type, prey size, prey number, handling time and surface time are all recorded. Sites are in Alaska and include locations in Katmai National Park and Preserve, Kenai Fjords National Park and Prince William Sound. This data in this file were collected 2012-2016.

Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Aquatic Biology, Ecology, Enhydra lutris, Gulf of Alaska, Katmai National Park and Preserve, All tags... Kenai Fjords National Park, Prince William Sound, USGS Science Data Catalog (SDC), Wildlife Biology, biota, coastal ecosystems, environment, foraging behavior, marine ecology, monitoring, prey, sea otters, synecology, Fewer tags

Brant (Branta bernicla) Genetic Data from North America, Europe, and Asia

This data package is comprised of one table with genetic data from Brant (Branta bernicla). Data include sampling location and allele sizes of 14 microsatellite loci.

Categories: Data; Tags: Alaska, Alleles, Animals/Vertebrates, Aquatic ecosystems, Biota, All tags... Birds, Brant, Branta bernicla, Canada, Coastal ecosystems, DNA, DNA Primers, DNA sequencing, DNA, Mitochondrial, Ducks/Geese/Swans, Environment, Gene Flow, Genetic diversity, Genetic markers, Genetics, Genetics, Genotype, Iceland, Ireland, Marine ecosystems, Microsatellite Repeats, Migratory birds, Polymerase chain reaction, Population Genetics, Russia, The Netherlands, USGS Science Data Catalog (SDC), Waterfowl, Wetland ecosystems, Wildlife, Wildlife Disease, Fewer tags

Child Item 09: Nutrient Depth Profile Data from Prince William Sound, Alaska

This is a child item of the USGS Data Release: https://doi.org/10.5066/F74J0C9Z One table with the concentrations of inorganic nutrients (NO2, NO3, PO4, and SiOH4) in water samples collected during summer from multiple depths at sampling stations throughout Prince William Sound, Alaska. Version History: First release: April 2017 Revised: February 2021 (ver. 2.0) Revised: March 2023 (ver. 3.0) Revised: September 2024 (ver. 4.0)

Categories: Data; Tags: Alaska, Aquatic Biology, Biota, Coastal ecosystems, Ecology, All tags... Environment, Gulf of Alaska, Inorganic Nutrients, Marine ecosystems, Marine fishery resources, Oceans, Pelagic habitat, Prince William Sound, USGS Science Data Catalog (SDC), Wildlife Biology, Fewer tags

Gulf Watch Alaska - Pelagic Ecosystems Forage Fish Component - Data from Prince William Sound: Distribution, Abundance, and Morphology of Fish, Zooplankton, and Predators and Oceanographic Conditions

This data package includes 10 child items with data about the distribution, abundance, and morphology of forage fish, zooplankton, and predators, and oceanographic conditions during summer surveys in Prince William Sound, Alaska. Version History: First release: April 2017 Revised: February 2021 (ver. 2.0) Revised: March 2023 (ver. 3.0) Revised: September 2024 (ver. 4.0)

Categories: Data; Tags: Acoustic backscatter, Age composition, Alaska, Animals/Invertebrates, Animals/Vertebrates, All tags... Aquatic Biology, Aquatic birds, Aquatic mammals, Bioenergetics, Biomass, Biota, Calorimetry, Capelin, Coastal ecosystems, Conductivity, Ecology, Environment, Euphausiids, Fish, Fisheries, Fishery technology, Food fishes, Food web, Forage fish, Gulf of Alaska, Hydroacoustics, Inorganic Nutrients, Macrozooplankton, Marine ecosystems, Marine fishery resources, Marine mammals, Oceans, Pacific Sand Lance, Pelagic habitat, Photosynthetically active radiation, Plankton, Prince William Sound, Salinity, Sandlance, Sea ducks, Seabirds, Temperature, Turbidity, USGS Science Data Catalog (SDC), Wildlife Biology, Zooplankton, Fewer tags

Child Item 2: Argos and GPS Satellite Tracking Data for Buff-breasted Sandpipers (Calidris subruficollis) - Raw Data

This metadata document describes the data contained in the "Argos GPS Raw Data" (Child Item 2). This data package contains all data collected from 130 Argos and Argos-linked GPS satellite transmitters attached to Buff-breasted Sandpipers at breeding sites in Alaska, migratory stopovers in Texas, and wintering areas in Brazil, Argentina, and Uruguay, 2016-2018. The 130 deployed tags were comprised of 22 Argos Doppler PTTs (2 gram PTTs built by Microwave Telemetry) and 108 Argos-linked GPS PTTs (2 gram PinPoint tags built by Lotek). However, 14 Pinpoints never reported data, so they only appear in the deployment data records and not the location data files. One of the 94 functional PinPoint tags never reported GPS...

Categories: Data; Tags: Alaska, Animal tracking, Animals/Vertebrates, Argentina, Argos, All tags... Biota, Birds, Brazil, Breeding sites, Buff-breasted Sandpiper, Calidris subruficollis, Capture-recapture studies, Central Americas flyway, Coastal ecosystems, Environment, GPS, Migratory birds, Migratory rates/routes, Migratory species, Ornithology, Overwintering, PTT, Platform Transmitter Terminal, Satellite transmitter, Seasonal distribution, Seasonal movement, Species life history, Tagging devices, Telemetry, Texas, Tracking equipment, USGS Science Data Catalog (SDC), Uruguay, Waders/Gulls/Auks and Allies, Wildlife, Wildlife Biology, Fewer tags