John F Piatt

Child Item 6: Zooplankton Biomass Data from Gulf of Alaska Fjords, 2010-2011

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.

Categories: Data; Tags: Alaska, Aquatic Biology, Biomass, Biota, Ecology, All tags... Ecosystem monitoring, Environment, Field inventory and monitoring, Fresh water river discharge, Glacier Bay, Gulf of Alaska, Icy Bay, Marine ecosystems, Ocean characteristics, Ocean monitoring, Oceans, Prince William Sound, Specimen sampling, Stage, USGS Science Data Catalog (SDC), Water Quality, Water sampling, Wildlife Biology, Yakutat Bay, Zooplankton, m3, 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

Child Item 5: Modified Herring Trawl Fish Catch Data in Gulf of Alaska Fjords, 2004-2011

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).

Categories: Data; Tags: Alaska, Aquatic Biology, Biota, Ecology, Ecosystem monitoring, All tags... Environment, Field inventory and monitoring, Fish, Glacier Bay, Gulf of Alaska, Icy Bay, Marine ecosystems, Mid water trawl, Ocean characteristics, Ocean monitoring, Oceans, Prince William Sound, Ray-fined fishes, Total catch, Trawling, USGS Science Data Catalog (SDC), Water sampling, Wildlife Biology, Yakutat Bay, Fewer tags

Seabird Diet Data Collected on Middleton Island, Gulf of Alaska

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)

Categories: Data, Data Release - Revised; Tags: Alaska, Animals/Invertebrates, Animals/Vertebrates, Biota, Birds, All tags... Black-legged Kittiwake, Ecology, Environment, Environmental sustainability, Field sampling, Fish, Fishes, Gulf of Alaska, Marine biology, Marine environment monitoring, Marine environments, Marine fishes, Middleton Island, Oceans, Prey selection, Prince William Sound, Quantitative distribution, Rhinoceros Auklet, Temporal variations, Tufted Puffin, USGS Science Data Catalog (SDC), Waders/Gulls/Auks and allies, Wildlife Biology, Wildlife biology, Fewer tags

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.

Categories: Data; Tags: Alaska, Animal tracking, Animals/Vertebrates, Argos, Atka Island, All tags... Biota, Birds, Brachyramphus brevirostris, Breeding sites, Capture-recapture studies, Coastal ecosystems, Environment, Glacier Bay, Icy Bay, Kachemak Bay, Kittlitz's Murrelet, Kodiak Island, Marine ecosystems, Migratory birds, Migratory rates/routes, Migratory species, Ornithology, Overwintering, PTT, Platform Transmitter Terminal, Prince William Sound, Satellite transmitter, Seasonal distribution, Seasonal movement, Species life history, Tagging devices, Telemetry, Tracking equipment, USGS Science Data Catalog (SDC), Waders/Gulls/Auks and Allies, Wildlife, Wildlife Biology, Fewer tags