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Inter-vessel comparison of hydroacoustic fish density in central Lake Erie, 2014 Hydroacoustic estimates of fish density are used for fisheries management in central Lake Erie. Data are sometimes collected from multiple vessels, raising the question of comparability of data collected among vessels. Hydroacoustic data were collected along three cross-lake transects in central Lake Erie in July, 2014 from three different vessels using similar equipment. Several variables derived from hydroacoustic data and fish densities calculated from those variables were compared between the standard vessel used typically for hydroacoustic data collection and two other vessels used occasionally. The data used in those analyses are presented here. Categories: Data; Tags: Aquatic Biology, Great Lakes, Lake Erie, Remote Sensing, USGS Science Data Catalog (SDC), All tags... aquatic biology, biota, field inventory and monitoring, fishery management, multibeam sonar, transect sampling, Fewer tags Hydroacoustic data from central Lake Erie, 2010-2019 Hydroacoustic estimates of fish density are used for fisheries management in central Lake Erie. Hydroacoustic data were collected along up to four cross-lake transects in central Lake Erie July 2010 through July 2019. Software-generated raw variables used for calculating estimates of hydroacoustic fish densities are presented here. Categories: Data; Tags: Aquatic Biology, Great Lakes, Lake Erie, USGS Science Data Catalog (SDC), aquatic biology, All tags... biota, field inventory and monitoring, fishery management, multibeam sonar, transect sampling, Fewer tags Stable Isotopes of Silver Chub, Dreissenid mussels, and Hexagenia spp. Mayflies from Western Lake Erie, 2014 This table contains Carbon and Nitrogen stable isotope data for Silver Chub (Macrhybopsis storeriana), dreissenid mussels, and Hexagenia spp. mayflies from western Lake Erie in 2014. Samples were collected between May and September 2014 as part of both routine monitoring and a lake-wide coordinated monitoring effort. Silver Chub were collected in trawls; Hexagenia and Dreissenids were captured in benthic samples and taken from Silver Chub diets. Categories: Data; Tags: Lake Erie, USGS Science Data Catalog (SDC), biota, invasive species, life sciences, All tags... native species, recovery, Fewer tags Developmental Stages of Grass Carp (Ctenopharyngodon idella) eggs in the Sandusky River in 2017 A newer version of these data is available at https://doi.org/10.5066/P94BH3W0. 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 2017, sampling with ichthyoplankton nets in the Sandusky River produced thousands of fertilized eggs on four dates during two distinct spawning events. We used published keys to estimate developmental... Categories: Data; Tags: Aquatic Biology, Ecology, Sandusky River, USGS Science Data Catalog (SDC), Western Lake Erie, All tags... biota, environment, invasive species, Fewer tags Grass Carp (Ctenopharyngodon idella) egg capture data from tributaries to western Lake Erie, 2015-2020 The data includes dates, places, and times of sampling events for eggs and larvae of invasive Grass Carp (Ctenopharyngodon idella) in tributaries to Lake Erie between 2015 and 2020. 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. Categories: Data; Tags: Aquatic Biology, Asian carp, Cuyahoga River, Grass Carp, Great Lakes, All tags... Huron River, Maumee River, Portage River, Sandusky River, USGS Science Data Catalog (SDC), USGS-CC Asian Carp, Western Lake Erie, biota, fish, fish spawning and larval aggregation, invasive species, mathematical modeling, streamflow, Fewer tags Historical Length, Weight, and Fecundity of Silver Chub (Macrhybopsis storeriana) in Western Lake Erie This data set provides a table of length, weight, sex, and estimated fecundity of Silver Chub Macrhybopsis storeriana in western Lake Erie from 1979 through 1987. These data are potentially useful to those studying recovery and restoration of Silver Chub in Lake Erie. These data were collected as part of routine trawl surveys in western Lake Erie. Other data associated with these data can be found in the Great Lakes Research Vessel Operations 1958-2018. (ver. 3.0, April 2019). A drawn map, originally packaged alongside the hard copy data sheets, is included in this data release. This map guides users in identifying specific locations of capture. Due to the legacy nature of these data, location data is estimated... Categories: Data; Types: Citation; Tags: Lake Erie, USGS Science Data Catalog (SDC), biota, endangered species, native species, All tags... population dynamics, Fewer tags Effects of pulse duration on common hydroacoustic measures in Lake Erie in 2011-2012 and Ohio Reservoirs in 2017 Hydroacoustics is a common sampling tool in freshwater and marine ecosystems, yet the full potential of this tool remains restricted, owing to an incomplete understanding of the influence of many data collection settings. In particular, investigation into the effects of the pulse duration setting on common hydroacoustic measures remains limited. Hydroacoustic theory suggests that pulse duration can affect how many single targets (e.g., individual fish or invertebrates) are detected, the mean target strength (TS) of sample cells, and estimates of target density, especially in ecosystems with an abundance of potential targets. To quantify the influence of the pulse duration setting on these important and commonly... Categories: Data; Tags: Acton Lake, Alum Creek Lake, Aquatic Biology, Ecology, Great Lakes, All tags... Hoover Reservoir, Lake Erie, Limnology, Ohio, Remote Sensing, Techniques and Methods, USGS Science Data Catalog (SDC), Water Resources, acoustic methods, biota, environment, field methods, fisheries biology, fisheries management, hydroacoustics, inlandWaters, management methods, sonar methods, Fewer tags Optimum electrofishing waveforms and parameters to induce immobilization of juvenile Grass Carp: Data Grass Carp (Ctenopharyngodon idella) are a non-native species to North America that were first introduced for vegetation control in the 1960s. However, wild-reproducing Grass Carp can negatively impact aquatic habitats and aquatic communities by consuming substantial amounts of aquatic vegetation and increasing turbidity. Numerous fisheries techniques have been used in an attempt to control or eradicate Grass Carp, including electrofishing. However, electrofishing efficiency for Grass Carp has been variable, and optimum electrofishing waveforms and parameters for inducing a capture-prone response have not been determined. The objective of this study was to determine the optimum electrofishing waveforms and parameters... Categories: Data; Tags: Grass carp, USGS Science Data Catalog (SDC), biota, control, electrofishing, All tags... invasive species, Fewer tags Development of an age estimation method for Grass Carp from North America The development of a reliable method of age estimation for Grass Carp is necessary for the successful management of this invasive species. Multiple federal and state agencies with assistance from commercial fishers collected adult Grass Carp from 2012 to 2018. Ossified parts were collected from these fish, and age estimates from them were compared to develop an age estimation method. Here we provide the data used in that effort. Categories: Data; Tags: Allegheny River, Ashtabula River, Berlin Lake, Blackwater, Calumet River, All tags... Cuyahoga River, Great Lakes, Illinois, Jungbluth Ditch, Lake Erie, Lake Gibson, Lake Michigan, Lake Ontario, Lamine, Little Calumet River, Mahoning River, Maumee River, Milwaukee River, Minnesota River, Mississippi River, Missouri, Muskingum River, Ohio, Ontario, Pennsylvania, Sac, Sandusky River, Sugar Creek, USGS Science Data Catalog (SDC), Upper Mississippi River, Wisconsin, age estimation methods, biota, freshwater ecosystems, invasive species, none, Fewer tags Hydroacoustic data from central Lake Erie, 2020 Hydroacoustic estimates of fish density are used for fisheries management in central Lake Erie. Hydroacoustic data were collected along 8, randomly-selected, 5-kilometer transects and three transects between the US shore and the international border in central Lake Erie in July 2020. Software-generated raw variables used for calculating estimates of hydroacoustic fish densities are presented here. These data are related to a longer-term data set from 2010-2019. Categories: Data; Tags: Aquatic Biology, Great Lakes, Lake Erie, USGS Science Data Catalog (SDC), aquatic biology, All tags... biota, field inventory and monitoring, fishery management, multibeam sonar, transect sampling, Fewer tags Diets of Silver Chub (Macrhybopsis storeriana) in western Lake Erie, 2014 Diet and estimated ages of Silver Chub (Macrhybopsis storeriana) collected by the US Geological Survey in western Lake Erie in 2014 are presented. Fish were frozen in the field at -20 C and dissected in the lab. Ages were estimated by one experienced biologist who estimated ages twice, then reconciled age estimates when the two age estimates differed. Diet taxa were enumerated, dried individually at 60 F until stable weight was achieved (~24-48 hrs), then weighed. Zero weights for non-zero counts indicates dry weight was below detection limit of the scale used. Categories: Data; Tags: Dreissena, Hexagenia, Lake Erie, USGS Science Data Catalog (SDC), biota, All tags... ecology, ecosystem monitoring, endangered species, native species, 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 Water Chemistry of Great Lakes Tributaries, 2017-2018 Chemical composition of fish bones can be used to trace fish migrations and other movements (e.g., use of tributaries for spawning). Chemical composition of water is required to be able to trace fish migrations or movements to particular rivers or streams. Because water chemistry can change over time due to changes in land use, tectonic movements that alter groundwater pathways, pollution, industrial activity, and potentially other sources, periodic re-assessment of water chemistry is required. Here we present data on concentrations of common elements for several tributary streams to Lake Michigan, Lake Erie, and Lake Ontario collected in 2017 and 2018. These data will be useful to anyone desiring to track fish... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Aquatic Biology, Geochemistry, Great Lakes, Hydrology, Lake Erie, All tags... Lake Michigan, Lake Ontario, USGS Science Data Catalog (SDC), Water Quality, environment, inlandWaters, water chemistry, Fewer tags