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This is a child item of the USGS Data Release: https://doi.org/10.5066/P961LWWE This dataset consists of one table with annual counts from population plots of Black-legged Kittiwakes and Common Murres at two seabird nesting colonies on Gull and Chisik Islands in lower Cook Inlet, Alaska. Version History: First release: May 2021 Revised: June 2021 (ver. 1.1) Revised: June 2022 (ver. 2.0) Revised: January 2024 (ver. 3.0)
Categories: Data,
Data Release - Revised;
Tags: Alaska,
Animals/Vertebrates,
Aquatic Biology,
Biota,
Birds,
These data are part of the Gulf Watch Alaska (GWA) long-term monitoring program, nearshore monitoring component. The dataset is comprised of six comma separated values (.csv) file exported from a relational database. The data consist of 1) summer marine bird and mammal densities, 2) winter marine bird and mammal densities, 3) summer marine bird and mammal observations, 4) winter marine bird and mammal observations, 5) summer marine bird and mammal survey strip transects, and 6) winter marine bird and mammal survey strip transects. Version History: First release: December 2017 Revised: July 2024 (ver. 2.0)
Categories: Data,
Data Release - Revised;
Tags: Alaska,
Animals/Vertebrates,
Biota,
Birds,
Coastal ecosystems,
This is a child item of the USGS Data Release: https://doi.org/10.5066/P961LWWE This dataset consists of one table with egg predation data from Common Murres at two seabird nesting colonies on Gull and Chisik Islands in lower Cook Inlet, Alaska. Version History: First release: May 2021 Revised: June 2021 (ver. 1.1) Revised: June 2022 (ver. 2.0) Revised: January 2024 (ver. 3.0)
Categories: Data,
Data Release - Revised;
Tags: Alaska,
Animals/Vertebrates,
Aquatic Biology,
Bald Eagle,
Biota,
This data release includes 2 child items with tracking data for Kittlitz's Murrelets, a rare seabird species that nests solitarily on the ground in barren, often alpine areas near the North Pacific and Bering Sea. Child Item 1: "Argos Satellite Tracking Data for Kittlitz's Murrelets (Brachyramphus brevirostris) - Processed Data" Quality-controlled data collected from Argos satellite transmitters. Child Item 2: "Argos Satellite Tracking Data for Kittlitz's Murrelets (Brachyramphus brevirostris) - Raw Data" All raw data collected from Argos satellite transmitters, provided for completeness of the archive. The "Argos Processed Data" (Child Item 1) are better suited for most analytical purposes.
This data package includes 7 child items with data about the seabird abundance, productivity, predator disturbance, morphology of forage fish, and hydroacoustic characteristics at Lower Cook Inlet seabird colonies. Child Item 1: "Predation of Common Murre Eggs at Two Seabird Colonies in Lower Cook Inlet, Alaska". Child Item 2: "Forage Fish Morphology Data from Lower Cook Inlet, Alaska". Child Item 3: "Hydroacoustic Survey Data from Lower Cook Inlet, Alaska". Child Item 4: "Nesting Productivity of Black-Legged Kittiwakes and Common Murres at Two Seabird Colonies in Lower Cook Inlet, Alaska". Child Item 5: "Population Counts at Two Seabird Colonies in Lower Cook Inlet, Alaska". Child Item 6: "Population Plots at...
Categories: Data,
Data Release - Revised;
Tags: Acoustic backscatter,
Alaska,
Animal behavior,
Animals/Vertebrates,
Aquatic Biology,
These data are part of the Gulf Watch Alaska (GWA) long term monitoring program, nearshore component and a seasonal diet study in Kenai Fjords National Park. This dataset 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 were all recorded. Sites are in Alaska and include locations in Kachemak Bay, Katmai National Park and Preserve, Kenai Fjords National Park and Prince William Sound. The data in this file were collected from 2012—2024. Version History: First release: March 2017 Revised: November 2024 (ver....
Categories: Data,
Data Release - Revised;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Alaska,
Animals/Invertebrates,
Animals/Vertebrates,
Aquatic ecosystems,
Aquatic ecosystems,
This is a child item of the USGS Data Release: https://doi.org/10.5066/P961LWWE This dataset consists of one table with annual nesting productivity estimates for Black-legged Kittiwakes and Common Murres at two seabird nesting colonies on Gull and Chisik Islands in lower Cook Inlet, Alaska. Version History: First release: May 2021 Revised: June 2021 (ver. 1.1) Revised: June 2022 (ver. 2.0) Revised: January 2024 (ver. 3.0)
Categories: Data,
Data Release - Revised;
Tags: Alaska,
Animals/Vertebrates,
Aquatic Biology,
Biota,
Birds,
This is a child item of the USGS Data Release: https://doi.org/10.5066/P961LWWE This dataset consists of one table with Area Backscattering Coefficient (ABC) data from hydroacoustic transect surveys collected around two seabird nesting colonies on Gull and Chisik Islands in lower Cook Inlet, Alaska. Version History: First release: May 2021 Revised: June 2021 (ver. 1.1) Revised: June 2022 (ver. 2.0) Revised: January 2024 (ver. 3.0)
Categories: Data,
Data Release - Revised;
Tags: Acoustic backscatter,
Alaska,
Aquatic Biology,
Aquatic Sciences and Fisheries,
Biota,
These data are part of the Gulf Watch Alaska (GWA) long-term monitoring program and describe bivalve count and size sampling and observations conducted at intertidal soft-sediment sampling sites in the northern Gulf of Alaska. This dataset consists of five comma separated files (.csv): 1) bivalve taxonomy table, 2) bivalve sampling site table, 3) bivalve count table, 4) bivalve size table, and 5) list of Gulf Watch Alaska principal investigators and collaborators. Version History: First release: November 2018 Revised: September 2022 (ver. 2.0) Revised: October 2023 (ver. 3.0)
Categories: Data,
Data Release - Revised;
Tags: Alaska Peninsula,
Animals/Invertebrates,
Aquatic Biology,
Aquatic biology,
Aquatic ecosystems,
The State of Alaska Division of Geological & Geophysical Surveys (DGGS) and Division of Oil & Gas (DOG) are currently engaged in a multi-year study of the hydrocarbon potential of the Tertiary and Mesozoic strata in Cook Inlet basin. Modal analyses and routine core analyses were performed on Tertiary and Mesozoic siltstones and sandstones collected during the 2007-2010 field seasons from six geographic areas in upper and lower Cook Inlet. The reservoir quality of Cook Inlet sandstones varies widely depending on their mineralogy, geologic age, burial depth, and depositional environment. Tuxedni and Naknek sandstones have poor reservoir quality and are likely to be of equally poor quality down dip. West Foreland sandstones...
This is a child item of the USGS Data Release: https://doi.org/10.5066/P961LWWE This dataset consists of one table with predator disturbance information from the Common Murre breeding season (June-August) from 2016-2020 on Gull Island, Kachemak Bay, Alaska. Version History: First release: May 2021 Revised: June 2021 (ver. 1.1) Revised: June 2022 (ver. 2.0) Revised: January 2024 (ver. 3.0)
Categories: Data,
Data Release - Revised;
Tags: Alaska,
Animal behavior,
Animals/Vertebrates,
Aquatic Biology,
Bald Eagle,
These data are part of the Gulf Watch Alaska (GWA) long term monitoring program, nearshore monitoring component. Specifically, these data describe site locations for rocky intertidal, mussel sampling, soft sediment bivalve sampling, and eelgrass bed sampling in the northern Gulf of Alaska within the GWA program. The dataset consists of two comma separated files exported from a Microsoft Excel workbook. The data consists of 1. rocky intertidal, mussel sampling, and soft sediment site location information, and 2. eelgrass bed locations. Sampling will be conducted in Katmai National Park and Preserve (KATM), Kenai Fjords National Park (KEFJ), Prince William Sound (PWS) and to a lesser extent on the Lake Clark National...
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Alaska,
Alaska Peninsula,
Algae,
Aquatic Biology,
Benthic,
These data are part of the Gulf Watch Alaska (GWA) long-term monitoring program, nearshore monitoring component. The dataset is comprised of six comma separated values (.csv) file exported from a relational database. The data consist of: 1) transect summary, 2) nest details, 3) egg float and stage data, 4) chicks diets, 5) chick diet taxonomy, and 6) Gulf Watch Alaska contributors. Version History: First release: April 2017 Revised: November 2023 (ver. 2.0) Revised: October 2024 (ver. 3.0)
Categories: Data,
Data Release - Revised;
Tags: Alaska,
Animals/vertebrates,
Aquatic biology,
Aquatic ecosystems,
Biota,
This metadata document describes the data contained in the "Argos Processed Data" (Child Item 1) of this data release. This data release contains all data collected by the Argos System from 47 satellite transmitters attached to Kittlitz's Murrelets captured along the north Gulf of Alaska, during May-July 2009-2015. The raw data were processed to accomplish two goals: flag implausible location estimates and decode raw sensor data. Three Comma Separate Value (CSV) tables are included in the "Argos Processed Data" (Child Item 1) of this data release: 1) the "diag_filteredLocations" table contains one record for every Argos location estimate collected, accompanied by a binary flag that denotes an algorithm's plausibility...
Black Oystercatcher Morphology and Primary Feather Lengths in Alaska and British Columbia, 2019-2022
These data provide morphological measurements and primary feather length measurements of Black Oystercatcher (Haematopus bachmani) captured at several sites across Alaska and British Columbia between 2019 and 2022. The first table contains mass and morphological measurements of body and bill size. The second table provides lengths of individual primary feathers measured from folded wing photographs using a computer software. These feather lengths are to be used in a size-constrained components analysis to calculate wing shape such as pointedness and convexity.
Categories: Data;
Tags: Age structure,
Alaska,
Animal morphology,
Animals/Vertebrates,
Avian physiology,
This preliminary report is a summary of progress made during the 2006-07 field seasons reconstructing depositional systems in Tertiary strata exposed in the Homer-Kachemak Bay area.The study area addressed in this report extends from Clam Gulch in the north to Coal Cove in the south.Tertiary strata in this area are only mildly deformed and provide a relatively clear view of depositional systems and sand body geometries along the eastern basin edge and their change from basin edge to more basin axial positions.
This is a child item of the USGS Data Release: https://doi.org/10.5066/P961LWWE This dataset consists of one table with annual population counts (censuses) for Black-legged Kittiwakes and Common Murres at two seabird nesting colonies on Gull and Chisik Islands in lower Cook Inlet, Alaska. Version History: First release: May 2021 Revised: June 2021 (ver. 1.1) Revised: June 2022 (ver. 2.0) Revised: January 2024 (ver. 3.0)
Categories: Data,
Data Release - Revised;
Tags: Alaska,
Animals/Vertebrates,
Aquatic Biology,
Biota,
Birds,
This study is an integrated study of status and trends of Kittlitz’s murrelet (Brachyramphus brevirostris), marbled murrelet in two regions impacted by the Exxon Valdez Oil Spill (EVOS): Kenai Peninsula Coast and Kachemak Bay. Our overall goal is to provide information about trends in abundance of these injured seabird species that are not recovering from EVOS or whose recovery status in unknown, thus supporting the EVOSTC in assessment of their recovery status. Kittlitz’s murrelet and marbled murrelet two seabird species that were impacted by EVOS, with an estimated 5-10% and 6-12% of the spill zone population killed by acute oiling, respectively. Recovery status of Kittlitz’s murrelets following the EVOS remains...
Categories: Data,
Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: ANIMALS/VERTEBRATES,
Abundance,
Alaska,
BIOLOGICAL CLASSIFICATION,
BIRDS,
These data are part of the Gulf Watch Alaska (GWA) long-term monitoring program. This dataset consists of observations of sea otter (Enhydra lutris) fecal samples (spraint). Observers examined fresh spraint piles to identify major prey classes in the samples and to determine sea otter diets in the Gulf of Alaska region. Version History: First release: July 2022 Revised: March 2023 (ver. 2.0) Revised: November 2023 (ver. 3.0) Revised: August 2024 (ver. 4.0)
Categories: Data,
Data Release - Revised;
Tags: Alaska,
Animals/Vertebrates,
Aquatic biology,
Aquatic ecosystems,
Benthic ecosystems,
These data are part of the Gulf Watch Alaska (GWA) long-term monitoring program. This dataset consists of date, time, and temperature measurements from intertidal rocky sampling sites, including predicted tide height at the time of the reading, which is used to distinguish air from water temperature readings. The data are provided as comma separated values (.csv) files derived from data downloaded from HOBO temperature loggers. This dataset includes previously released data and supersedes the USGS data release (https://doi.org/10.5066/F77S7KXH). Version History: First release: September 2016 Revised: July 2022 (ver. 2.0) Revised: August 2022 (ver. 3.0) Revised: September 2023 (ver. 4.0) Revised: October 2024 (ver....
Categories: Data,
Data Release - Revised;
Tags: Air temperature,
Alaska,
Alaska Peninsula,
Aquatic Biology,
Atmospheric/Ocean Indicators,
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