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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) Revised: February 2025 (ver. 3.0)
This data release contains information derived from fishing efforts and sampled fish from the nearshore Beaufort Sea, Alaska, 2021-2023, as part of a study investigating red-throated loon productivity and diet. The datasets include six tables comprising 1) catch per unit effort (CPUE) data, 2) field-measured lengths of fish (mm), 3) the energy density (kJ/g) and whole-body energy (kJ) of 16 species of forage-sized fish (≤200 mm), 4) taxonomic details of captured fish, 5) temperature (°C), raw electrical conductivity (μS/cm), and salinity (psu) as recorded by data loggers, and 6) the specifications of surface trawl fishing sets.
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These data include species occurrence records of fish in oceans within 1000 kilometers of the United States shoreline. This dataset is a subset of the OBIS-USA dataset as of December 2, 2014 and includes records of the taxonomic groups of Actinopterygii, Chondrichthyes, Myxini, Osteichthyes, and Petromyzontida. After initial taxonomic queries, the remaining data were further queried to retain only samples within 1000 kilometers of the U.S. shoreline. Spatial queries were then used to remove samples overlaying land masses. Data are provided in a geodatabase format, as well as a comma seperated values format. OBIS-USA provides aggregated, interoperable biogeographic data collected primarily from U.S. waters and oceanic...


    map background search result map search result map Fish Subset of Ocean Biogeographic Information System (OBIS) - USA Dataset Collection for NFHP Thematic Viewer 20141202 Seabird Diet Data Collected on Middleton Island, Gulf of Alaska Fish Nutritional Quality, Biomarkers, Communities, and Environmental Data from the Nearshore Beaufort Sea, Alaska, 2021-2023 Fish Nutritional Quality, Biomarkers, Communities, and Environmental Data from the Nearshore Beaufort Sea, Alaska, 2021-2023 Seabird Diet Data Collected on Middleton Island, Gulf of Alaska Fish Subset of Ocean Biogeographic Information System (OBIS) - USA Dataset Collection for NFHP Thematic Viewer 20141202