Filters: Tags: {"scheme":"Geographic Names Information System (GNIS)"} (X) > Contacts: Furu Mienis (X)

Filters Date Range Past year (1) Past month (0) Past week (0) Past day (0) Custom range... To   Search Types Citation (2) Contacts U.S. Geological Survey Jennifer P McClain Counts Amanda W Demopoulos U.S. Geological Survey - ScienceBase PCMSC Science Data Coordinator More... Categories Data (2) Tag Types Place (2) Tags (with Scheme=Geographic Names Information System (GNIS)) atlantic ocean (2) View Results as: JSON ATOM CSV

Food-web dynamics and isotopic niches in deep-sea communities residing in a submarine canyon and on the adjacent open slopes Examination of food webs and trophic niches provide insight into organisms’ functional ecology, yet few studies have examined the trophodynamics within submarine canyons, where the interaction of morphology and oceanography influences food deposition. Stable isotope analysis and Bayesian ellipses documented deep-sea food web structure and trophic niches in Baltimore Canyon and the adjacent open slopes in the U.S. Mid-Atlantic Region. Results revealed isotopically diverse feeding groups, comprising approximately 5 trophic levels. Regression analysis indicated that consumer isotope data are structured by site (canyon vs. slope), feeding group, and depth. Benthic feeders were enriched in 13C and 15N relative to suspension... Categories: Data; Types: Citation; Tags: Atlantic Ocean, Baltimore Canyon, Bayesian ellipses, USGS Science Data Catalog (SDC), deep-sea, All tags... stable isotopes, submarine canyon, Fewer tags Sediment trap and water column chemistry, Baltimore Canyon, U.S. Mid-Atlantic Bight Time-series of sediment chemistry, including organic biomarker composition and bulk inorganic geochemical analytes, from samples collected over a one-year period in a sediment trap. The sediment traps were deployed at a depth between 603 m to 1318 m, and they were programmed to rotate a 250 mL sample bottle at 30 d intervals, delivering 12 samples during the 1-year deployment between August 2012 and June 2013. In addition, dissolved water column nutrient concentrations and water column trace element particulate concentrations were collected in Baltimore Canyon on the U.S. Mid-Atlantic Bight (MAB). Categories: Data; Types: Citation; Tags: Assessments, Atlantic Ocean, Atlantic Ocean, Baltimore Canyon, animal-sediment interactions, All tags... carbon-14 analysis, chemical analysis, environment, gas chromatography, geochemistry, geochemistry, geoscientificInformation, light stable isotope analysis, marine chemistry, marine sediments, oceans, particle flux, radiometric dating, sediment chemistry, sediment deposition, sediment erosion, sediment geochemistry, sediment transport, Fewer tags