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Location Folder Show Tree ROOT _ScienceBase Catalog __Alaska Science Center (ASC) ____Ecosystems Aerial Photo Imagery from Fall Waterfowl Surveys, Izembek Lagoon, Alaska, 2017-2019 Bird Species Checklists from USGS Alaska Science Center Field Camps Data from Black Brant (Branta bernicla nigricans) Overwintering in Three Lagoons Along the Baja California Peninsula, Mexico Data from Prince William Sound: Distribution, Abundance, and Morphology of Fish, Zooplankton, and Predators and Oceanographic Conditions Pacific Walrus Coastal Haulout Occurrences Interpreted from Satellite Imagery More... Filters Date Range Past year (109) Past month (51) Past week (16) Past day (0) Custom range... To   Search Types Map Service (10) OGC WFS Layer (10) OGC WMS Layer (10) OGC WMS Service (10) Citation (1) Contacts Alaska Science Center U.S. Geological Survey, Alaska Science Center Ecosystems USGS ScienceBase Team USGS ScienceBase Team More... Categories Data Release - Revised (15) Tag Types Theme (101) Place (98) USGS Scientific Topic Keyword (99) Harvest Set (100) Ecology (1) Tag Schemes None (91) USGS Thesaurus (95) NASA GCMD Earth Science Keyword Thesaurus (92) USGS CSA Biocomplexity Thesaurus (93) USGS Geographic Names Information System (GNIS) (90) ISO 19115 Topic Category (100) NGA GEOnet Names Server (27) More... View Results as: JSON ATOM CSV Browse Folder

Cryptosporidium and Giardia Occurrence Data in Wildlife from Arctic Alaska, 2012-2017 This dataset consists of one table with sample collection locations and results of screening resident wildlife for Cryptosporidium and Giardia in the Alaskan Arctic, 2012-2017. We analyzed feces collected from polar bear, Pacific walrus, Arctic fox, and caribou with MERIFLUOR direct immunofluorescence assay to determine the presence of Cryptosporidium oocysts and Giardia cysts. Categories: Data; Tags: Alaska, Animals/Vertebrates, Arctic fox, Biota, Caribou, All tags... Cryptosporidium, Cryptosporidium, Disease detection, Disease reservoirs, Disease vectors, Endangered species, Environment, Giardia, Giardia, Health and disease, Indicator species, MERIFLUOR Cryptosporidium/Giardia direct immunofluorescent assay, Mammals, Migratory species, Odobenus rosmarus divergens, Pacific walrus, Parasitic diseases, Polar bear, Rangifer tarandus, Tundra ecosystems, USGS Science Data Catalog (SDC), Ursus maritimus, Vulpes lagopus, Wildlife, Wildlife Biology, Wildlife Disease, Wildlife disease, Fewer tags Rocky Intertidal Invertebrate and Algae Cover from Prince William Sound, Katmai National Park and Preserve, and Kenai Fjords National Park This is a child item of the USGS Data Release: https://doi.org/10.5066/F7513WCB. These data are part of the Gulf Watch Alaska (GWA) long-term monitoring program, nearshore monitoring component. The dataset has six comma separated values (.csv) file exported from a Microsoft Access relational database. The data consist of percent cover and point contact data from algae and invertebrates at intertidal rocky substrate sampling sites. Tables include: 1) intertidal cover, 2) intertidal percent cover, 3) intertidal top layer percent cover, 4) intertidal substrate percent cover, 5) taxonomic classification, and 6) Gulf Watch Alaska contributors. Version History: First release: September 2022 Revised: October 2023 (ver.... Categories: Data; Tags: Alaska, Alaska Peninsula, Algae, Algae, Animals/Invertebrates, All tags... Aquatic biology, Aquatic ecosystems, Biospheric indicators, Biota, Community ecology, Ecology, Ecosystem monitoring, Environment, Gulf of Alaska, Intertidal environments, Intertidal zone, Katmai National Park and Preserve, Kenai Fjords National Park, Macroinvertebrates, Marine ecosystems, Marine invertebrates, Mollusks, Nearshore ecology, Prince William Sound, USGS Science Data Catalog (SDC), Wildlife biology, Wildlife disease, Fewer tags Eelgrass (Zostera marina) Percent Cover Data from Katmai National Park and Preserve, Kenai Fjords National Park, and Prince William Sound, Alaska These data are part of the Gulf Watch Alaska (GWA) long-term monitoring program, nearshore monitoring component. The dataset has one comma separated values (.csv) table with estimates of eelgrass (Zostera marina) percent cover. Eelgrass cover was estimated from sonar and video drop cameras deployed from boats following prescribed survey transects. Categories: Data; Tags: Alaska, Alaska Peninsula, Angiosperms (flowering plants), Animal and plant census, Aquatic Biology, All tags... Biological productivity, Biota, Coastal ecosystems, Ecosystem monitoring, Eelgrass, Environment, Estuarine ecosystems, Gulf of Alaska, Katmai National Park and Preserve, Kenai Fjords National Park, Marine ecosystems, Monocots, Nearshore ecology, Prince William Sound, Relative abundance analysis, Seagrass, Seagrass beds, USGS Science Data Catalog (SDC), Wildlife Biology, Zostera marina, Fewer tags Genetic Data from Cooper's Hawks (Accipiter cooperii), North America This data set describes nuclear microsatellite genotypes derived from six autosomal loci (AgCA222, Age7.1JT, BV13, BV20, NVH206, NVH195-2) in Cooper's Hawks. Samples originated from blood samples collected from live trapped birds. Version History: First release: December 2020 Revised: February 2022 (ver. 2.0) Categories: Data; Tags: Accipiter cooperii, AgCA222, Age7.1JT, Alleles, Animals/Vertebrates, All tags... BV13, BV20, Biota, Birds, Birds of prey, British Columbia, Cooper's Hawk, DNA, Eagles/Falcons/Hawks and Allies, Environment, Gene Flow, Genetic Markers, Genetics, Genetics, Genotype, Microsatellite Repeats, NVH195-2, NVH206, North Dakota, Polymerase chain reaction, Population Genetics, Raptors, Site Fidelity, Terrestrial ecosystems, USGS Science Data Catalog (SDC), Wildlife, Wildlife Biology, Wisconsin, Fewer tags Interior Alaska eBird Checklists These data are daily summary checklists of all bird species observed at U.S. Geological Survey, Alaska Science Center (ASC) field camps in Interior Alaska. Version History: First release: May 2021 Revised: February 2022 (ver. 2.0) Revised: February 2023 (ver. 3.0) Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service Gulf Watch Alaska Nearshore Component: Sea Otter Aerial Survey Data Katmai National Park and Preserve, 2008-2018 These data are part of the Gulf Watch Alaska (GWA) long term monitoring program, nearshore monitoring component. Specifically, these data describe sea otter (Enhydra lutris) aerial survey observations from the waters around Katmai National Park and Preserve from surveys conducted in 2008, 2012, 2015, and 2018. Sea otters are a keystone predator, well known for structuring the nearshore marine ecosystem through their consumption of invertebrate prey. The dataset consists of 3 comma-delimited files (CSV) exported from Microsoft Excel. The data consists of (1) Strip transect counts, (2) Intensive Search Unit (ISU) counts, and (3) Transect coordinates. For each aerial survey, a pilot flew an airplane at an altitude... Categories: Data, Data Release - Revised; Tags: Abundance, Aerial survey, Alaska, Animals/Vertebrates, Aquatic Biology, All tags... Aquatic ecosystems, Benthic habitat, Biota, Coastal habitat, Distribution, Ecology, Ecology, Ecosystem monitoring, Enhydra lutris, Environment, Gulf of Alaska, Intertidal environments, Katmai National Park and Preserve, Marine environment monitoring, Marine mammals, Otters, Population dynamics, Sea otters, USGS Science Data Catalog (SDC), Wildlife Biology, Fewer tags 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. Version History: First release: February 2024 Revised: August 2024 (ver. 1.1) Categories: Data, Data Release - Revised; Tags: Actinopterygii, Age composition, Alaska, Animals/Invertebrates, Animals/Invertebrates, All tags... Aquatic Biology, Aquatic Invertebrates, Aquatic ecosystems, Arachnida, Arctic, Arthropods, Arthropods, Biota, Bivalvia, Clitellata, Ecology, Entognatha, Environment, Freshwater ecosystems, Gastropoda, InlandWaters, Insecta, Macroinvertebrates, Nemata, Turbellaria, USGS Science Data Catalog (SDC), Water Quality, Fewer tags Data from Black Brant (Branta bernicla nigricans) Overwintering in Three Lagoons Along the Baja California Peninsula, Mexico This data package includes two child items with data from Pacific Black Brant (Branta bernicla nigricans) during winter and migration periods. Child Item One: "Body mass, Morphological Measurements, Flock Counts, and Age-Ratios from Black Brant Overwintering in Three Lagoons Along the Baja California Peninsula, Mexico". The data include: (1) body mass and morphological measurements from sport hunter harvested brant, and (2) census counts of brant in Bahia de San Quintin, (3) counts for flock age ratio determination, and (4) behavior. Child Item Two: "Black Brant (Branta bernicla nigricans) Radio Detection and Migration Timing Alaska to Mexico". Data from brant tagged with VHF radio transmitters in July 1999 on... Categories: Data, Data Release - Revised; Tags: Alaska, Animal populations, Animals/Vertebrates, Bahia San Quintín, Baja California, All tags... Baja California Sur, Biota, Birds, Black Brant, Branta bernicla nigricans, Brent Goose, Coastal ecosystems, Ecological dynamics, Environment, Izembek National Wildlife Refuge, Laguna Ojo de Liebre, Laguna San Ignacio, Mexico, Migratory birds, Population dynamics, Species life history, Species/population interactions, USGS Science Data Catalog (SDC), Waterfowl, Wildlife, Wildlife Biology, Yukon Delta, Yukon Delta National Wildlife Refuge, Yukon Kuskokwim Delta, Fewer tags Genetic Data from Arctic, Polar, and Saffron Cod and Walleye Pollock, Alaska and Canada, 2011-2017 Fragment data from 11 nuclear microsatellite loci and sequence data from the mitochondrial cytochrome b gene were gathered from Arctic cod (Boreogadus saida) in the Beaufort and Chukchi seas. Mitogenomic analyses of Arctic cod and three other co-distributed gadoids (Polar cod [Arctogadus glacialis], Saffron cod [Eleginus gracilis], Walleye Pollock [Gadus chalcogrammus]) were also completed. Transcriptomic analyses of Arctic cod were used to identify genes associated with environmental perturbations. Genome-wide scans using RAD-Seq of Arctic cod and the co-distributed Polar Cod were collected. Categories: Data; Tags: Alaska, Aleutian Islands, Aquatic Biology, Aquatic ecosystems, Aquatic sciences, All tags... Arctic cod, Arctogadus glacialis, Beaufort Sea, Beaufort Sea, Bering Sea, Biota, Boreogadus saida, Canada, Chukchi Sea, DNA sequencing, DNA, Mitochondrial, Eleginus gracilis, Environment, Fish, Fisheries, Gadus chalcogrammus, Gene flow, Genetic structure, Genetic variance, Genetics, Genetics, Genomics, Gulf of Alaska, Gulf of Saint Lawrence, Marine habitat, Microsatellite Repeats, Norton Sound, Nova Scotia, Polymerase chain reaction, Population dynamics, Population genetics, Saffron cod, Systematics and taxonomy, USGS Science Data Catalog (SDC), Walleye Pollock, Wildlife Biology, Yukon Territory, Fewer tags Western Alaska eBird Checklists These data are daily summary checklists of all bird species observed at U.S. Geological Survey, Alaska Science Center (ASC) field camps in Western Alaska. Version History: First release: May 2021 Revised: February 2022 (ver. 2.0) Revised: February 2023 (ver. 3.0) Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service Scoter (Melanitta sp.) ddRAD SNP and Microsatellite Genetic Data, North America and Europe, 1977-2012 This data set contains sampling information, allele sizes of 11 microsatellite loci, and Genbank accession numbers of ddRAD seq results for scoters (Melanitta sp.). Microsatellite data is provided for three North American species of scoter (black scoter, M. americana n = 61; white-winged scoter, M. deglandi, n = 208; surf scoter, M. perspicillata, n = 145) and their European congeners (common scoter, M. nigra, n = 19; velvet scoter, M. fusca, n = 20). Individuals with ddRAD results include 27 black scoters, 4 common scoters, 32 surf scoters, 28 white-winged scoters, and 4 velvet scoters. Categories: Data; Tags: Alaska, Alleles, Animals/Vertebrates, Baja California, Biota, All tags... Birds, British Columbia, Canada, Coastal ecosystems, DNA, DNA Primers, Denmark, Environment, Estuarine habitat, Gene Flow, Genetic markers, Genetic structure, Genetics, Genetics, Melanitta americana, Melanitta deglandi, Melanitta fusca, Melanitta nigra, Melanitta perspicillata, Mexico, Microsatellite Repeats, Midtjylland, Migratory birds, New Brunswick, Newfoundland and Labrador, Northwest Territories, Nova Scotia, Polymerase chain reaction, Population dynamics, Quebec, Rhode Island, Saskatchewan, Seasonal distribution, Seasonal movement, Sjælland, Syddanmark, Terrestrial ecosystems, USGS Science Data Catalog (SDC), Virginia, Washington, Waterfowl, Wetland ecosystems, Wildlife, Wildlife Biology, Fewer tags Marine Bird and Mammal Survey Data from Kachemak Bay, Katmai National Park and Preserve, and Kenai Fjords National Park 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; Tags: Alaska, Animals/Vertebrates, Biota, Birds, Coastal ecosystems, All tags... Community ecology, Ecology, Ecology, Environment, Environmental proxies, Field inventory and monitoring, Field sampling, Gulf of Alaska, Intertidal zone, Kachemak Bay, Katmai National Park and Preserve, Kenai Fjords National Park, Macroinvertebrates, Mammals, Marine ecosystems, Marine environment monitoring, Marine environments, Marine mammals, Nearshore ecology, Population density, Population trend, Relative abundance, Seabirds, Shorebirds, Spatial distribution, USGS Science Data Catalog (SDC), Wildlife, Wildlife Biology, Fewer tags Eelgrass (Zostera marina) Microsatellite DNA Data, Pacific Coast of North America, 2000-2009 This data set contains genetic information collected from eelgrass (Zostera marina) populations along the Pacific coast of North America from Alaska to Baha California. A total of 447 samples were collected comprising 401 unique individuals (genets) and 46 clones (ramets) from which 10 microsatellite DNA loci were obtained. Categories: Data; Types: Citation; Tags: Alleles, Angiosperms (Flowering Plants), Aquatic Biology, Aquatic ecosystems, Bahia Magdelena, All tags... Bahia San Quintin, Biota, Botany, Coastal habitat, DNA, Environment, Estero Punta Banda, Gene flow, Genetic diversity, Genetic markers, Genetic structure, Genetic variance, Genetics, Genetics, Genotype, Izembek Lagoon, Kinzarof Lagoon, Kuskokwim Shoals, Microsatellite repeats, Monocots, Montague Island, Monterey Bay, Nakwasina Bay, Plants, Polymerase chain reaction, Population genetics, Safety Sound, Saint Catherine Cove, Seagrass, Shallow Bay, Simeonof Island, Togiak Bay, USGS Science Data Catalog (SDC), Unga Island, Wide Bay, Yaquina Bay, Fewer tags Enteroctopus Sampling Effects on Genetic Data, Prince William Sound, Alaska, 2012-2015 These are genetic data collected from replicated samples of 21 Enteroctopus (E. dofleini or a cryptic lineage) in Prince William Sound Alaska to evaluate tissue type, DNA extraction method, and time until analyses are completed on data reliability. Data collected from all samples include two microsatellites identified as possible lineage indicators, and nine microsatellite loci previously identified as polymorphic in both lineages. DNA sequence data from 528 bp of the octopine dehydrogenase (OCDE) gene were also collected. Categories: Data; Tags: Alaska, Amino Acid Oxidoreductases, Animals/Invertebrates, Biodiversity, Biodiversity, All tags... Biota, Cephalopods, DNA, DNA sequencing, Electrophoresis, Enteroctopus, Environment, Genetic Markers, Genetic diversity, Genetics, Genetics, Marine ecosystems, Microsatellite Repeats, Mollusks, Octopus, Polymerase chain reaction, Population genetics, Prince William Sound, Species diversity, Systematics and taxonomy, USGS Science Data Catalog (SDC), Wildlife Biology, Fewer tags Point Sampling Data for Eelgrass (Zostera marina) and Widgeongrass (Ruppia marina) Abundance in Embayments of the North Pacific Coast of Baja California, Mexico These data are in seven tables relating to surveys of eelgrass (Zostera marina) and widgeongrass (Ruppia maritima) beds in embayments of the north Pacific coast of Baja California, Mexico. The tables provide environmental conditions, eelgrass and widgeongrass abundance, and measurements used to estimate their aboveground biomass. These tables also provide information on percent cover, location, and tide height of eelgrass, widgeongrass and seaweeds, and water conditions during the survey. Version History: First release: March 2022 Revised: April 2023 (ver. 2.0) Categories: Data; Tags: Algae, Algae, Angiosperms (flowering plants), Animal and plant census, Aquatic Biology, All tags... Aquatic ecosystems, Aquatic plants, Bahia San Quintin, Baja California, Benthic habitat, Biological productivity, Biomass, Biota, Coastal ecosystems, Ecology, Eelgrass, Environment, Estuarine ecosystems, Field inventory and monitoring, Laguna Ojo de Liebre, Laguna San Ignacio, Macroalgae (seaweeds), Marine ecosystems, Mexico, Monocots, Plot sampling, Relative abundance analysis, Ruppia maritima, Seagrass, Seagrass beds, Seaweeds, USGS Science Data Catalog (SDC), Vascular plants, Widgeongrass, Zostera marina, Fewer tags Molecular Sexing of Birds Using Quantitative PCR (qPCR) of Sex-Linked Genes and Logistic Models This dataset provides cycle threshold (Ct) values achieved during qPCR for 6 sex-linked genes, and two autosomal genes, for individuals from 60 species and across 13 orders of birds. Categories: Data; Tags: Alaska, Animals/Vertebrates, Biota, Birds, DNA, All tags... Environment, Genetic Markers, Genetics, Genetics, Laboratory methods, Polymerase chain reaction, Quantitative PCR, USGS Science Data Catalog (SDC), Wildlife, Wildlife Biology, qPCR, Fewer tags Detection of Seagrass Pathogens Using Environmental DNA (eDNA), North Pacific, 2016-present This data set is comprised of one table with sampling information and NCBI BioProject accession numbers for sequence information of this amplicon-based study targeting Labyrinthula, Phytophthora, and Halophytophthora of known pathogenic and non-pathogenic [to eelgrass (Zostera marina)] strains from eDNA samples. eDNA samples included water, sediment, and eelgrass from Notsuke Wan (Cove) Japan, Safety Sound, Izembek Lagoon, Port Moller, Chignik Lagoon, and Frederick Sound, Alaska and cloacal swabs from waterfowl hunted near Cold Bay Alaska. Replicate samples and multiple sampling dates of the same location were included. Highly conserved primers which could differentiate species of interest were developed for four... Categories: Data, Data Release - Revised; Tags: Alaska, Animals/Vertebrates, Aquatic Biology, Aquatic ecosystems, Biological informatics, All tags... Biota, Birds, DNA Primers, DNA, Mitochondrial, Databases, Nucleic acid, Decline (Plant disease), Disease detection, Disease spread, Disease vectors, Ducks/Geese/Swans, Ecological processes, Ecosystem, Ecosystem diversity, Environment, Environmental DNA, Environmental DNA, Feasibility studies, Field sampling, Genetics, Halophytophthora, Hokkaido, Izembek National Wildlife Refuge, Japan, Labyrinthula sp., Labyrinthula zosterae, Marine biology, Marine environment monitoring, Mitochondrial DNA, Ocean circulation, Oceans and Seas, Phytophthora gemini, Plants, Species/Population Interactions, USGS Science Data Catalog (SDC), Zostera marina, eDNA, Fewer tags Rocky Intertidal Nucella, Lirabuccinum, Katharina, and Lottia Counts from Prince William Sound, Katmai National Park and Preserve, and Kenai Fjords National Park This is a child item of the USGS Data Release: https://doi.org/10.5066/F7513WCB. These data are part of the Gulf Watch Alaska (GWA) long-term monitoring program, nearshore monitoring component. The dataset has three comma separated values (.csv) file exported from a Microsoft Access relational database. The data consist of 1) counts of Nucella spp., Lottia spp., Lirabuccinum dirum, and Katharina tunicata, 2) a taxonomic classification table, and 3) a table of Gulf Watch Alaska contributors. Version History: First release: September 2022 Revised: October 2023 (ver. 2.0) Categories: Data; Tags: Alaska, Alaska Peninsula, Animals/Invertebrates, Aquatic biology, Aquatic ecosystems, All tags... Benthic, Biospheric indicators, Biota, Chiton, Community ecology, Density, Ecology, Ecology, Ecosystem monitoring, Environment, Gulf of Alaska, Intertidal, Intertidal environments, Intertidal zone, Katharina, Katmai National Park and Preserve, Kenai Fjords National Park, Lirabuccinum, Marine ecosystems, Marine invertebrates, Mollusks, Nearshore ecology, Nucella, Prince William Sound, Snail, USGS Science Data Catalog (SDC), Wildlife biology, Wildlife disease, Fewer tags Pacific Walrus Coastal Haulout Images from Remote Camera Stations This data package contains 362 digital photos of a walrus haulout location at Cape Greig, on the Alaska Peninsula summer 2023 (2023-05-09 23:01:08 UTC through 2023-11-16 21:01:14 UTC). Photos were taken up to three times daily from a remotely operated camera located on a bluff above the haulout. The camera station was installed in the early spring 2023, prior to arrival of walruses at the site. Images are transferred via satellite link. Version History: First release: June 2023 Revised: January 2024 (ver. 2.0) Categories: Data; Tags: Alaska, Animals/vertebrates, Bering Sea, Biota, Cape Greig, All tags... Carnivores, Coastal ecosystems, Environment, Field inventory and monitoring, Image collections, Mammals, Marine ecosystems, Marine mammals, Migratory species, Odobenus rosmarus divergens, Pacific Walrus, Pinniped, Remote photo imagery, Remote sensing, Seals/sea lions/walruses, Seasonal distribution, USGS Science Data Catalog (SDC), Walrus, Wildlife, Wildlife Biology, Fewer tags Genetic Data from Wolverine (Gulo gulo) of North America These data are comprised of two tables, one table containing wolverine (Gulo gulo) sample and genetic information for 20 microsatellite loci (Gg10-1, Gg25, Gg37-2, Gg42-1, Gg192-1, Gg443, Gg452, Gg454, Gg465, Gg471, Gg473, Gg-3-1, Gg-4, Gg-7-1, Ggu_216-1, Lut604, Ma-3-1, Mvis075, Tt-1, and Tt-4) and genetic sex determination results from North America and one Russian wolverine. All samples were obtained from collections at the University of Alaska Museum of the North or the University of New Mexico’s Museum of Southwestern Biology. The second table provides complete primer information for the genetic markers since several were redesigned from their originally-published sequences for this study. Categories: Data; Tags: Alaska, Alleles, Animals/Vertebrates, Biota, British Columbia, All tags... Canada, Carnivores, Chukotka, DNA, DNA Primers, Environment, Gene Flow, Genetic diversity, Genetic markers, Genetic structure, Genetics, Genetics, Gulo gulo, Kenai Peninsula, Mammals, Martens/Weasels/Wolverines, Microsatellite Repeats, Nunavut, Polymerase chain reaction, Population Genetics, Russia, Sexing (plants & animals), Terrestrial ecosystems, USGS Science Data Catalog (SDC), Wildlife, Wildlife Biology, Wolverine, Yukon, Fewer tags 1 2 3 4 5 6 »