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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)
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This is a child item of the USGS Data Release: https://doi.org/10.5066/F7K072DR This dataset includes zooplankton biomass from Prince William Sound, Icy Bay and Yakutat Bay, Alaska. Zooplankton were sampled with a ring net (0.6 m diameter with 211 µ mesh) on a 50 m vertical haul or to within 5 m of the bottom in shallow water. Zooplankton samples were identified to species and life stage when possible.
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These data are part of the Gulf Watch Alaska (GWA) long-term monitoring program and contain diet data from Black-legged Kittiwakes (BLKI), Rhinoceros Auklets (RHAU), and Tufted puffins (TUPU) located on Middleton Island in the Gulf of Alaska. This data release consists of seabird diet sample data and prey identification and morphometrics. Version History: First release: March 2023 Revised: October 2024 (ver. 2.0)
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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)
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This is a child item of the USGS Data Release: https://doi.org/10.5066/F7K072DR This dataset contains catch data from trawls at the sampling stations. We deployed a modified herring trawl in coastal waters within glacier fjords of Alaska. Sampling stations in each fjord were chosen randomly from a 2.5 x 2.5 km grid overlaid on navigable waters in the fjord. The number of stations in each fjord was chosen to achieve a sampling frequency of about 1 sample per 15 km^2, and was based on available resources and logistical constraints (weather, navigational hazards and vessel time).
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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 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)
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This data package includes 6 child items with data pertaining to Tufted Puffin productivity, chick productivity, oceanographic conditions, environmental conditions, and hydroacoustic characteristics at Tufted Puffin colonies on the Aleutian Islands and Alaska Peninsula. Child Item 1: "Oceanographic Conditions (Temperature and Salinity), North Pacific and Bering Sea 2012-2014". Child Item 2: "Marine Bird and Mammal Surveys, North Pacific and Bering Sea 2012-2014". Child Item 3: "Tufted Puffin Colony Environmental Data, North Pacific and Bering Sea, 2012-2014". Child Item 4: "Hydroacoustic Surveys, North Pacific and Bering Sea, 2012 and 2014". Child Item 5: "Tufted Puffin Chick Body Conditions, North Pacific and...
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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.
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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)
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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, All tags...
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This is a child item of the USGS Data Release: https://doi.org/10.5066/F7K072DR This dataset contains physical oceanographic data within four fjords in the coastal area of the Gulf of Alaska. Data were collected with a Seabird Electronics conductivity-temperature-depth profiler equipped with external sensors and a water sampler. Glacier runoff provides a link between terrestrial systems and nearshore coastal processes, whereby freshwater input influences the physical oceanographic properties and circulation of fjords (Arimitsu et al. 2016).
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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 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)
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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 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)
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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)
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This is a child item of the USGS Data Release: https://doi.org/10.5066/F7K072DR These data describe marine bird and mammal surveys conducted in glacial fjords of coastal Alaska. Data were collected to document the at-sea distribution and abundance of marine birds and mammals in Glacier Bay National Park (2004), Prince William Sound (2010), Icy Bay (2011) and Yakutat Bay (2011). Following standard US Fish and Wildlife protocols for strip surveys.
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This is a child item of the USGS Data Release: https://doi.org/10.5066/F7TQ60GV Data were collected to index the body condition of Tufted Puffin chicks on colonies in the North Pacific and Bering Sea during August or 2012-2014. This dataset contains information on every chick measured. Data consists of: colony name, date, wing chord (mm), mass (g), culmen (mm), tarsus (mm), body condition (mass/wing), and burrow observations. Chick body condition was only used for analyses if there were measurements from 12 or more chicks at each colony.
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This data release has been SUPERSEDED. No data are provided here. Data from HABs sampling data releases have been appended to U.S. Geological Survey data release: https://doi.org/10.5066/P9MLNP9H. This data set is comprised of two tables with results of algal toxin screening for saxitoxin and domoic acid. We used enzyme-linked immunosorbent assay (ELISA) and high-performance liquid chromatography (HPLC) to screen seabirds, forage fish, and marine invertebrates from the Gulf of Alaska, 2015-2017.
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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...
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This is a child item of the USGS Data Release: https://doi.org/10.5066/F7K072DR In order to understand marine ecosystem responses to a range of habitat variability in coastal zones modified by glacial freshwater outflows, biophysical data were collected in three study regions that included four major glacial fjord systems around the Gulf of Alaska. Each of 172 discrete stations within the three study regions was sampled once during the peak ice-melt season in summer. A suite of geographic, oceanographic, nutrient and biological attributes was sampled at each station (see Arimitsu et al. 2008, Renner et al. 2012, Arimitsu et al. 2016 for details). This dataset includes station information, including date, time,...
map background search result map search result map Marine Ecology near Tufted Puffin Colonies across the Aleutian Archipelago and Alaska Peninsula, 2012-2014 Assessing the Status and Trends of Seabirds and Forage Fish in Lower Cook Inlet, Alaska Seabird Diet Data Collected on Middleton Island, Gulf of Alaska 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 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 6: Population Plots at Two Seabird Colonies in Lower Cook Inlet, Alaska Child Item 1: Predation of Common Murre Eggs at Two Seabird Colonies in Lower Cook Inlet, Alaska SUPERSEDED: Data Associated with Algal Toxin Testing of Common Murres (Uria aalge) and Forage Fish in Alaska, 2015–2017 Child Item 04: Forage Fish Aerial Validation Data from Prince William Sound, Alaska Child Item 08: Hydroacoustic Survey Data from Prince William Sound, Alaska Child Item 09: Nutrient Depth Profile Data from Prince William Sound, Alaska Child Item 1: Oceanographic Profile Data from Gulf of Alaska Fjords, 2004-2011 Child Item 2: Marine Bird and Mammal Surveys in Gulf of Alaska Fjords, 2004-2011 Child Item 4: Glacier Runoff Biophysical Data in Gulf of Alaska Fjords, 2004-2011 Child Item 5: Modified Herring Trawl Fish Catch Data in Gulf of Alaska Fjords, 2004-2011 Child Item 6: Zooplankton Biomass Data from Gulf of Alaska Fjords, 2010-2011 Tracking Data for Kittlitz's Murrelets (Brachyramphus brevirostris) Child Item 1: Argos Satellite Tracking Data for Kittlitz's Murrelets (Brachyramphus brevirostris) - Processed Data Child Item 4: Nesting Productivity of Black-Legged Kittiwakes and Common Murres at Two Seabird Colonies in Lower Cook Inlet, Alaska Child Item 6: Population Plots at Two Seabird Colonies in Lower Cook Inlet, Alaska Child Item 1: Predation of Common Murre Eggs at Two Seabird Colonies in Lower Cook Inlet, Alaska Child Item 08: Hydroacoustic Survey Data from Prince William Sound, Alaska Child Item 3: Hydroacoustic Survey Data from Lower Cook Inlet, Alaska Child Item 09: Nutrient Depth Profile Data from Prince William Sound, Alaska Child Item 04: Forage Fish Aerial Validation Data from Prince William Sound, Alaska Seabird Diet Data Collected on Middleton Island, Gulf of Alaska 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 Assessing the Status and Trends of Seabirds and Forage Fish in Lower Cook Inlet, Alaska SUPERSEDED: Data Associated with Algal Toxin Testing of Common Murres (Uria aalge) and Forage Fish in Alaska, 2015–2017 Child Item 1: Oceanographic Profile Data from Gulf of Alaska Fjords, 2004-2011 Child Item 2: Marine Bird and Mammal Surveys in Gulf of Alaska Fjords, 2004-2011 Child Item 4: Glacier Runoff Biophysical Data in Gulf of Alaska Fjords, 2004-2011 Child Item 5: Modified Herring Trawl Fish Catch Data in Gulf of Alaska Fjords, 2004-2011 Child Item 6: Zooplankton Biomass Data from Gulf of Alaska Fjords, 2010-2011 Marine Ecology near Tufted Puffin Colonies across the Aleutian Archipelago and Alaska Peninsula, 2012-2014 Tracking Data for Kittlitz's Murrelets (Brachyramphus brevirostris) Child Item 1: Argos Satellite Tracking Data for Kittlitz's Murrelets (Brachyramphus brevirostris) - Processed Data