Filters: Tags: Benthos (X) > Types: Citation (X)

Filters Date Range Past year (1) Past month (0) Past week (0) Past day (0) Custom range... To   Search Extensions Citation (2) Shapefile (1) Types Journal Citation (2) Downloadable (1) Map Service (1) OGC WFS Layer (1) OGC WMS Layer (1) Shapefile (1) Contacts U.S. Geological Survey - ScienceBase Ecosystems Great Lakes Science Center U.S. Geological Survey Kevin M Keeler More... Categories Data (4) Publication (2) Tag Types Theme (5) Place (5) Harvest Set (4) Tag Schemes Great Lakes Science Center Defined (1) None (2) USGS Thesaurus (4) National Agricultural Library Thesaurus (3) Coastal and Marine Ecological Classification Standard (CMECS) (1) Geographic Names Information System (GNIS) (2) Getty Thesaurus of Geogrpahic Names (1) More... View Results as: JSON ATOM CSV

Estimates of global cyanobacterial biomass and its distribution We estimated global cyanobacterial biomass in the main reservoirs of cyanobacteria on Earth: marine and freshwater plankton, arid land soil crusts, and endoliths. Estimates were based on typical population density values as measured during our research, or as obtained from literature surveys, which were then coupled with data on global geographical area coverage. Among the marine plankton, the global biomass of Prochlorococcus reaches 120 × 10^12 grams of carbon (g C), and that of Synechoccus some 43 × 10^12 g C. This makes Prochlorococcus and Synechococcus, in that order, the most abundant cyanobacteria on Earth. Tropical marine blooms of Trichodesmium account for an additional 10 × 10^12 g C worldwide. In terrestrial... Categories: Publication; Types: Citation, Journal Citation; Tags: Algological Studies, Cyanobacteria, abundance, arid land soils, benthos, All tags... freshwater, geography, global biomass, marine, plankton, population density, quantification, terrestrial environments, Fewer tags Soft sediment benthic macroinvertebrate communities of the Green River at the Ouray National Wildlife Refuge, Uintah County, Utah Benthic macroinvertebrates from four habitat types (river channel, ephemeral side channel, river backwater, and seasonally inundated wetland) were examined from the Green River at the Ouray National Wildlife Refuge, Uintah County, UT, June-August 1991. For major taxa (Nematoda, Oligochaeta, Diptera: Ceratopogonidea, and Chironomidae) were quantified. Chuster analysis of densities showed that habitat types with comparable flow conditions were the most similar. Highest to lowest overall benthic invertebrate densities of the four habitats were as follows: ephemeral side channel, river backwater, seasonally inundated wetland, and river channel. Nematodes were the most abundant taxon in all habitat types and sample dates... Categories: Publication; Types: Citation, Journal Citation; Tags: Ceratopogonidae, Chironomidae, Green River, Nematoda, Oligochaeta, All tags... Western North American Naturalist, benthic macroinvertebrates, benthos, river benthos, wetland, Fewer tags Development of fluorescent staining method and effect of fluorescent staining on benthic invertebrate picking efficiency This is a tabular data set that includes intensity and saturation measurements of benthic invertebrates, sample residue, and preservative from samples stained with three fluorescent dyes for the development of a fluorescent staining method to enhance picking efficiency. This data set also contains data evaluating a selected fluorescent method's effects on picking efficiency and comparison to standard non-fluorescent methods for sorting benthic invertebrates. Categories: Data; Types: Citation; Tags: Michigan, USGS Science Data Catalog (SDC), Washtenaw, benthos, environment, All tags... fluorescence microscopy, invertebrates, Fewer tags Great Lakes Research Vessel Operations 1958-2018. (ver. 3.0, April 2019) The Great Lakes Research Vessel Operations data release is taken from the Research Vessel Catch (RVCAT) database curated at the Great Lakes Science Center (GLSC). RVCAT has been used as the primary data collection tool aboard the GLSC’s research vessel operations. Content: The data set has been collected on various vessel operations on all the Great Lakes and select connecting waterways between the years 1958-2018. Data collection begins in early spring and ends in late fall. Each vessel operation was completed for a specific purpose, or target mission, which are enumerated in this data set. In addition to vessel operations data, RVCAT collects trawl and gillnet catch data, sample information of fish species caught,... Types: Citation; Tags: Alewife, Bathythermograph, Benthos, Bloater, Cisco, All tags... Deepwater, Deepwater Sculpin, Detroit River, Emerald Shiner, Gillnet, Habitat, Hydroacoustic, Ichthyoplankton, Lake Erie, Lake Huron, Lake Michigan, Lake Ontario, Lake Saint Clair, Lake Superior, Lake Trout, Lake Trout Population Dynamics, Laurentian Great Lakes, Mensuration, Mysis, Prey fish, Prey fish population dynamics, Rainbow Smelt, Round Goby, Saint Clair River, Sea Lamprey, Slimy Sculpin, Spoonhead Sculpin, Trawl, USGS Science Data Catalog (SDC), Walleye, White Perch, Yellow Perch, Zebra Mussel, Zooplankton, acoustics, age estimation methods, age structure, biogeography, biological sampling, biomass, biota, environment, fall forage fish, field sampling, fishery management, food web, freshwater fishes, geospatial datasets, gillnets, inlandWaters, invasive species, population dynamics, surface water temperature, time series datasets, transect sampling, trawl nets, trawling, water temperature, Fewer tags Habitat--Offshore of Monterey, California This part of DS 781 presents data for the habitat map of the seafloor of the Offshore of Monterey map area, California. The vector data file is included in "Habitat_OffshoreMonterey.zip," which is accessible from https://doi.org/10.5066/F70Z71C8. These data accompany the pamphlet and map sheets of Johnson, S.Y., Dartnell, P., Hartwell, S.R., Cochrane, G.R., Golden, N.E., Watt, J.T., Davenport, C.W., Kvitek, R.G., Erdey, M.D., Krigsman, L.M., Sliter, R.W., and Maier, K.L. (S.Y. Johnson and S.A. Cochran, eds.), 2016, California State Waters Map Series—Offshore of Monterey, California: U.S. Geological Survey Open-File Report 2016–1110, pamphlet 44 p., 10 sheets, scale 1:24,000, https://doi.org/10.3133/ofr20161110.... Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Backscatter, Bathymetry, Bathymetry, CMHRP, Coastal and Marine Hazards and Resources Program, All tags... Continental/Island Shelf, Ecosystem, Fisheries, Geology, Intensity, Marina, Marine Nearshore Subtidal, Marine Offshore Subtidal, Monterey, Monterey County, Multibeam, Northern California Ecoregion, Ocean Floor Topography, PCMSC, Pacific Coastal and Marine Science Center, Pacific Ocean, Rock Substrate, Seafloor Character, Seafloor Topography, Seaside, State of California, Transform Continental Margin, U.S. Geological Survey, USGS, USGS:e851004e-49c2-4e4d-aba8-76eaf979a61e, Unconsolidated Mineral Substrate, benthos, benthos, distributions, environment, geoscientificInformation, habitat, habitats, habitats, imageryBaseMapsEarthCover, oceans, physical habitats and geomorphology, sea-floor characteristics, seabed, Fewer tags Diets of Deepwater Sculpin collected from fall forage (2003-05 and 2010-14) in Lake Huron Diet contents of Deepwater Sculpin (Myoxocephalus thompsonii) were identified, enumerated, and measured to monitor the changes in the offshore benthic fish community within Lake Huron. Collections were made using a 21-m headrope with a 4.76mm square mesh cod-end with 10 minute contour trawl tows.. Deepwater Sculpin collected from the USGS fall forage (2003-2005 and 2010-2014) were counted and weighed en masse on board research vessel. Individual weights (nearest 0.001g) and measurements (0.1mm) were conducted in laboratory setting. Stomachs were extracted in laboratory setting (from esophogus to pyloric ceaca). Stomachs were stored in ethanol for later dissection. Stomach contents were removed in petri dish. All... Categories: Data; Types: Citation; Tags: Alpena, Au Sable Point, Benthos, Chironomidae, DeTour, All tags... Deepwater Sculpin, Diporeia, Fishes, Food web, Goderich, Hammond Bay, Harbor Beach, Lake Huron, Myoxocephalus thompsonii, Mysis, USGS Science Data Catalog (SDC), benthos, biota, food web, Fewer tags Benthic infaunal communities of Baltimore and Norfolk canyons Submarine canyons are morphologically complex systems, acting as major conduits of organic matter along continental shelves, promoting gradients in food resources, habitat heterogeneity, and areas of sediment resuspension and deposition. Often environmental conditions within canyons can be highly distinct, particularly in different parts of the canyon and in contrast to adjacent slopes. Here we examine how biogeochemical drivers shape the differences between canyon and slope infaunal communities in Baltimore and Norfolk Canyons in the U.S. Mid-Atlantic Region. Specific comparisons included macrofaunal communities in Norfolk canyons and adjacent slope, hard substrate associated macrofaunal communities in Norfolk... Categories: Data; Types: Citation; Tags: Atlantic Ocean, Baltimore Canyon, Benthos, Meiobenthos, Norfolk Canyon, All tags... USGS Science Data Catalog (SDC), biota, chemosynthetic, deep-sea, macrofauna, meiofauna, seep, submarine canyon, Fewer tags