3 Works

The BenBioDen database, a global database for meio-, macro- and megabenthic biomass and densities

Tanja Stratmann, Dick Van Oevelen, Pedro Martínez Arbizu, Chih-Lin Wei, Jian-Xiang Liao, Mathieu Cusson, Ricardo A. Scrosati, Philippe Archambault, Paul V. R. Snelgrove, Patricia A. Ramey-Balci, Brenda J. Burd, Ellen Kenchington, Kent Gilkinson, Rénald Belley & Karline Soetaert
Benthic fauna refers to all fauna that live in or on the seafloor, which researchers typically divide into size classes meiobenthos (32/ 64 µm – 0.5/ 1 mm), macrobenthos (250 µm – 1 cm), and megabenthos (> 1 cm). Benthic fauna play important roles in bioturbation activity, mineralization of organic matter, and in marine food webs. Evaluating their role in these ecosystem functions requires knowledge of their global distribution and biomass. We therefore established the...

The oxygen isotope compositions of large numbers of small cosmic spherules: Implications for their sources and the isotopic composition of the upper atmosphere

N. G. Rudraswami
Cosmic spherules are micrometeorites that melt at high altitude as they enter Earth’s atmosphere and their oxygen isotope compositions are partially or completely inherited from the upper atmosphere, depending on the heating experienced and the nature of their precursor materials. In this study, the three oxygen isotope compositions of 137 cosmic spherules are determined using 277 in-situ analyses by ion probe. Particles of each different type of cosmic spherule (scoriaceous, porphyritic, cryptocrystalline, barred, glass, calcium...

Extraterrestrial dust as a source of bioavailable Fe for the ocean productivity

N. G. Rudraswami
Bioavailable Fe is an essential nutrient for phytoplankton that allows these organisms to flourish and drawdown atmospheric CO2 affecting global climatic condition. In marine locales remote from the continents extraterrestrial (ET) dust provides an important source of Fe and thus moderates primary productivity. Here we provide the first constraints on the partitioning of extraterrestrial Fe between seawater and sediments from observations of the dissolution and alteration of 5228 cosmic spherules recovered from the deep sea...

Registration Year

  • 2020
    3

Resource Types

  • Dataset
    3

Affiliations

  • National Institute of Oceanography
    3
  • Koç University
    1
  • Université du Québec à Chicoutimi
    1
  • Royal Netherlands Institute for Sea Research
    1
  • St. Francis Xavier University
    1
  • Max Planck Institute for Marine Microbiology
    1
  • Bedford Institute of Oceanography
    1
  • Senckenberg am Meer
    1
  • Memorial University of Newfoundland
    1
  • Université Laval
    1