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Filters Date Types (for Date Range) Contacts U.S. Geological Survey, Alaska Science Center Alaska Science Center Ecosystems Damian M Menning U.S. Geological Survey - ScienceBase More... Categories Data (2) Tag Types Theme (3) Place (3) USGS Scientific Topic Keyword (1) Harvest Set (1) Tag Schemes USGS Thesaurus (3) None (3) NASA GCMD Earth Science Keyword Thesaurus (3) USGS CSA Biocomplexity Thesaurus (3) ISO 19115 Topic Category (3) USGS Geographic Names Information System (GNIS) (3) MeSH-National Library of Medicine (1) More... View Results as: JSON ATOM CSV

Macroinvertebrates from Rivers in Northwest Alaska, 2015-2019 This dataset contains taxonomic information, counts, and lengths of macroinvertebrates collected from rivers in northwest Alaska using drift and kick nets during summer and fall 2015-2019. Categories: Data; Tags: Actinopterygii, Age composition, Alaska, Animals/Invertebrates, Animals/Invertebrates, All tags... Aquatic Invertebrates, Aquatic ecosystems, Arachnida, Arctic, Arthropods, Arthropods, Biota, Bivalvia, Clitellata, Entognatha, Environment, Freshwater ecosystems, Gastropoda, InlandWaters, Insecta, Macroinvertebrates, Nemata, Turbellaria, Fewer tags Intertidal Mussel (Mytilus) Data from Prince William Sound, Katmai National Park and Preserve, and Kenai Fjords National Park These data are part of the Gulf Watch Alaska (GWA) long-term monitoring program and describe mussel sampling and observations conducted in the northern Gulf of Alaska. This dataset consists of six comma separated files (.csv): 1) mussel sampling site layout information, 2) mussel counts for mussels greater than 20 millimeters in a quadrat, 3) mussel size measurements for mussels greater than 20 millimeters in a quadrat, 4) mussel counts for all mussels collected from core samples, 5) mussel size frequencies for all mussels collected from core samples, and 6) list of Gulf Watch Alaska principal investigators and collaborators. Tags: Alaska, Animals/Invertebrates, Aquatic biology, Aquatic ecosystems, Aquatic ecosystems, All tags... Benthic ecosystems, Benthic habitat, Bioindicator, Biospheric indicators, Biota, Coastal ecosystems, Coastal habitat, Coastal processes, Ecology, Environment, Field inventory and monitoring, Field sampling, Gulf of Alaska, Katmai National Park and Preserve, Kenai Fjords National Park, Macroinvertebrates, Marine ecosystems, Marine environment monitoring, Marine environments, Mollusks, Mollusks, Mussels, Pacific Blue Mussel, Prince William Sound, Size distribution, Spatial distribution, Wildlife, Fewer tags Detection of the Aquatic Invasive Species (AIS) Elodea canadensis and E. nuttallii Using Environmental DNA (eDNA), Alaska This data set is comprised of one table with sampling information and National Center for Biotechnology Information (NCBI) BioProject accession numbers for sequence information of this amplicon-based study targeting Elodea canadensis and E. nuttallii in freshwater systems of Alaska from environmental samples. Highly conserved primers which can differentiate these species of interest were developed for four portions of Elodea mtDNA genes (ITS1-5.8S, atpB-rbcL, and two variations of trnL-trnF). The reference sequences and conserved primer sets to identify species present were developed using publicly available data from NCBI GenBank (https://www.ncbi.nlm.nih.gov/genbank/). Categories: Data; Tags: 5.8S, Alaska, Aquatic Biology, Aquatic ecosystems, Aquatic ecosystems, All tags... Aquatic invasive species, Biota, Coastal ecosystems, DNA Primers, DNA sequencing, Ecology, Elodea, Environment, Environmental DNA, Environmental Health, Genetic markers, Genetics, Marine environment monitoring, Metabarcoding, Mitochondrial DNA, Polymerase chain reaction, Tundra ecosystems, USGS Science Data Catalog (SDC), Weeds, noxious plants, or invasive plants, Wetland ecosystems, Wildlife, atpB-rbcL, eDNA, trnL-trnF, Fewer tags