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Filters Date Range Past year (4) Past month (0) Past week (0) Past day (0) Custom range... To   Search Contacts U.S. Geological Survey - ScienceBase Mary A Evans Meredith Nevers Patrick Kocovsky Dawn A Shively More... Categories Data (10) Tag Schemes USGS Thesaurus (94) ISO 19115 Topic Category (16) Producer defined (5) Coastal and Marine Ecological Classification Standard (3) Marine Realms Information Bank (MRIB) keywords (3) National Agricultural Library Thesaurus (3) Alexandria Digital Library Feature Type Thesaurus (1) More... Tags (with Type=Theme ) biota (6) environment (6) freshwater ecosystems (5) invasive species (5) algae (3) algal blooms (3) aquatic biology (3) More... View Results as: JSON ATOM CSV

Cladophora biomass and supporting data collected in the Great Lakes, 2019 (ver. 2.0, December 2023) This dataset records Cladophora and associated submerged aquatic vegetation (SAV) biomass collected approximately monthly during the growing season of 2019 at stations located along the U.S. shoreline of Lakes Michigan, Huron, Erie, and Ontario. It also records a variety of supporting data collected at Cladophora measurement stations. These supporting data include: - seasonal time series of light, currents, wave action, temperature, specific conductivity, turbidity, pH, phycocyanin, chlorophyll, and dissolved oxygen from moored sensors at a subset of stations; - measurements of Secchi disk depth and water chemistry; - water column profiles of temperature, specific conductivity, turbidity, pH, phycocyanin, chlorophyll,... Categories: Data, Data Release - Revised; Tags: CTD measurement, Great Lakes Region, Lake Erie, Lake Huron, Lake Michigan, All tags... Lake Ontario, USGS Science Data Catalog (SDC), acoustic Doppler current profiling, algae, algal blooms, aquatic biology, aquatic vegetation, benthos, biota, environment, eutrophication, freshwater ecosystems, habitat alteration and disturbance, inlandWaters, invasive species, mollusks, nuisance species, nutrient content (water), optical methods, oxygen content (water), phosphorus, submerged aquatic vegetation, surface water quality, suspended material (water), turbidity, water pH, water sampling, water temperature, Fewer tags Grass Carp (Ctenopharyngodon idella) egg capture data from Great Lakes tributaries, 2021-2022 (ver. 1.1, November 2023) The data includes dates, places, and times of sampling events for eggs of invasive Grass Carp (Ctenopharyngodon idella) in tributaries to the Great Lakes in 2021 and 2022. Reference data on locations and dates sampled, gears used, and effort are included. Developmental stages for a subset of undamaged, fertilized eggs are provided. Tables include common fields to allow for integration into a relational database to aid data extraction and associating data among tables. First posted: September 2023 Revised: November 2023 (version 1.1) Categories: Data, Data Release - Revised; Tags: Cuyahoga River, Grand River (Ohio, USA), Grass Carp, Great Lakes, Huron River (Ohio, USA), All tags... Invasive carp, Maumee River, Portage River, Sandusky River, St. Joseph River, Tittabawassee River, USGS Science Data Catalog (SDC), biota, fish, fish spawning and larval aggregation, invasive species, mathematical modeling, streamflow, Fewer tags Historical Spawning Sites for Lake Whitefish (Coregonus clupeaformis) and Cisco (Coregonus artedi) in Lake Erie and Connecting Channels, 1850-1960 (ver. 2.0, July 2022) This data contains coordinate locations for suspected historical spawning locations of lake whitefish (Coregonus clupeaformis) and cisco (Coregonus artedi) across the Lake Erie basin, including the Detroit River, Lake St. Clair, and the St. Clair River. Data points were summarized using ArcGIS 10.5. Data came from published and unpublished sources cited in the Atlas of the Spawning and Nursery Areas of Great Lakes Fishes (Goodyear et al. 1982) and other sources as described. Data points included were specific locations described as having the presence of eggs or spawning fish. Pseudo-absence data used for comparison purposes are also provided in this data release. First release: 2019 Revised: July 2022 (ver. 2.0) Categories: Data, Data Release - Revised; Tags: Coregonus artedi, Coregonus clupeaformis, Detroit River, Fish Spawning and Larval Aggregation, Lake Erie, All tags... Lake Saint Clair, Saint Clair River, USGS Science Data Catalog (SDC), biota, fisheries biology, historic sites, lake, mapping, Fewer tags Cladophora biomass and supporting data collected in the Great Lakes, 2020 (ver. 2, May 2023) This dataset records Cladophora and associated benthic algae, collectively Cladophora community or submerged aquatic vegetation (SAV), biomass collected during the growing season of 2020 at stations located along the U.S. shoreline of Lakes Michigan, Huron, and Erie. It also records a variety of supporting data collected at Cladophora measurement stations. These supporting data include: - measurements of Secchi disk depth and water chemistry; - water column profiles of temperature, specific conductivity, turbidity, pH, phycocyanin, chlorophyll, and dissolved oxygen; - diver observations of SAV, dreissenid mussels, round goby abundance, and substrate properties; - measurements of dreissenid mussel abundance and size... Categories: Data, Data Release - Revised; Tags: CTD measurement, Great Lakes Region, Lake Erie, Lake Huron, Lake Michigan, All tags... USGS Science Data Catalog (SDC), algae, algal blooms, aquatic biology, aquatic vegetation, benthos, biota, environment, eutrophication, field sampling, freshwater ecosystems, habitat alteration and disturbance, inlandWaters, invasive species, mollusks, nuisance species, nutrient content (water), optical methods, oxygen content (water), phosphorus, submerged aquatic vegetation, surface water quality, suspended material (water), turbidity, water pH, water sampling, water temperature, Fewer tags Cladophora biomass and supporting data collected in the Great Lakes, 2018 (ver. 2.0, June 2023) This dataset records Cladophora and associated benthic algae, collectively Cladophora community or submerged aquatic vegetation (SAV), biomass collected during the growing season of 2018 at stations located along the U.S. shoreline of Lakes Michigan, Huron, Erie, and Ontario. It also records a variety of supporting data collected at Cladophora measurement stations. These supporting data include: - seasonal time series of light, currents, wave action, temperature, specific conductivity, turbidity, pH, phycocyanin, chlorophyll, and dissolved oxygen from moored sensors at a subset of stations; - measurements of Secchi disk depth and water chemistry; - water column profiles of temperature, specific conductivity, turbidity,... Categories: Data, Data Release - Revised; Tags: Aquatic Biology, CTD measurement, Ecology, Great Lakes Region, Lake Erie, All tags... Lake Huron, Lake Michigan, Lake Ontario, Limnology, Water Quality, acoustic Doppler current profiling, algae, algal blooms, aquatic biology, aquatic vegetation, benthos, biota, environment, eutrophication, freshwater ecosystems, habitat alteration and disturbance, inlandWaters, invasive species, mollusks, nuisance species, nutrient content (water), optical methods, oxygen content (water), phosphorus, submerged aquatic vegetation, surface water quality, suspended material (water), turbidity, water pH, water sampling, water temperature, Fewer tags Historical Ice Breakup Dates for Chequamegon Bay, Lake Superior (ver. 5.0, September 2022) Ice breakup dates of Chequamegon Bay, Lake Superior from 1911 to 2022 were compiled by Lori Evrard (USGS, GLSC, Lake Superior Biological Station, Ashland, WI). Ice breakup date is the day in spring when winter ice cover substantially leaves a water body. Local residents deem "ice breakup" as when the ice moves northeast of a line straight across Chequamegon Bay out from Ellis Avenue (State highway 13). Another way ice breakup was determined has been if you could drive a boat from the outlet of Fish Creek to Houghton Point. The ice may move back and forth over that line but the ice is breaking up, moving and melting from that date on. Ellis Avenue ends on a bluff (46.5925 degrees North, 90.8827 degrees West) that... Categories: Data, Data Release - Revised; Tags: Ashland, Chequamegon Bay, Climatology, Great Lakes, Lake Superior, All tags... USGS Science Data Catalog (SDC), Wisconsin, bays, climatologyMeteorologyAtmosphere, lake ice, snow and ice cover, time series datasets, Fewer tags Developmental Stages of Grass Carp (Ctenopharyngodon idella) eggs in the Sandusky River (ver. 3.0, July 2020) Grass Carp Ctenopharyngodon idella was imported to the United States in the 1960s for research into its usefulness as a biocontrol agent for nuisance aquatic vegetation. Escapees and intentionally stocked individuals founded wild, spawning populations in the Mississippi River and tributaries to the Laurentian Great Lakes. USGS-led research on the Sandusky River, a tributary to Lake Erie, demonstrated spawning of Grass Carp in 2015. In 2018, sampling with ichthyoplankton nets in the Sandusky River 11-13 June produced thousands of suspected fertilized Grass Carp eggs. Genetic analysis of 49 eggs identified by microscopic analysis as Grass Carp eggs confirmed all were from Grass Carp, demonstrating 100% accuracy of... Categories: Data, Data Release - Revised; Tags: DNA sequencing, Fish spawning and larval aggregation, Grass Carp, Sandusky River, USGS Science Data Catalog (SDC), All tags... Western Lake Erie, biological population management, biota, environment, invasive species, Fewer tags USGS Lake Erie East Harbor bottom trawl data series, 1961-2011 (ver. 2.0, March 2020) The USGS Lake Erie Biological Station’s East Harbor sampling program began in 1961 with the commissioning of the research vessel Musky II. It is the longest known continuous trawl survey in Lake Erie. In addition to spanning over 50 years, the data series is unique for three prominent design elements: 1) sampling was conducted at three depth strata; 2) replicate trawl samples were collected at each depth stratum; and 3) sampling was conducted during both day and night. Unlike other trawl series collected in Lake Erie, and throughout the Great Lakes, the East Harbor program is the only one to combine these sampling practices in a single survey. In 2012, the original vessel used since the inception of the East Harbor... Categories: Data, Data Release - Revised; Tags: Cedar-Portage, Ecology, Field Sampling, Fishery Resources, Lake Erie, All tags... Population and community ecology, USGS Science Data Catalog (SDC), Fewer tags 16S rRNA gene sequencing and E. coli for shorelines and the Grand Calumet River, Indiana, 2015 Data were collected in August and September 2015 for analysis of bacteria communities of the Grand Calumet River and associated shorelines. Water samples were collected on three occasions corresponding to one rain-related (wet) events and two non-rain (dry) events. Water samples were collected in the Grand Calumet River, at the mouth of the river, at offshore locations around the peninsular impoundment and at shoreline locations: Jeorse Park (East Chicago, Indiana), Whihala (Whiting, Indiana), and 63rd Street (Chicago, Illinois) beaches. Samples were collected in triplicate, and water was filtered at the USGS Lake Michigan Ecological Research Station. After DNA extraction, samples were analyzed using 16S rRNA sequencing... Categories: Data, Data Release - Revised; Tags: Contamination and pollution, DNA sequencing, Ecology, Freshwater ecosystems, Grand Calumet River, All tags... Great Lakes, Lake Michigan, Microbial communities, Microbiology, USGS Science Data Catalog (SDC), Water sampling, environment, Fewer tags Identify sources of high E. coli concentrations, beaches of southern Lake Michigan, 2015 (version 2.0, July 2020) Data were collected as part of a study to identify sources of E. coli contamination at several beaches located in the Grand Calumet River Areas of Concern, located in northern Indiana on Lake Michigan, as well as in Illinois and Wisconsin on Lake Michigan. Water samples were collected at each site in Indiana three times a week for thirteen weeks and at each site in Illinois and Wisconsin. All samples were analyzed for E. coli bacteria (an indicator bacteria for fecal contamination) and species-specific molecular markers (microbial source tracking, MST), including human, gull, and dog. Presence of MST markers indicates a fecal source at that location associated with the target animal. Field conditions were recorded... Categories: Data, Data Release - Revised; Tags: Aquatic Biology, Area of Concern, Ecology, Environmental Health, Genetics, All tags... Grand Calumet River, Great Lakes, Lake Michigan, USGS Science Data Catalog (SDC), contamination and pollution, environment, environmental health (human), freshwater ecosystems, microbiology, polymerase chain reaction, water sampling, Fewer tags