Now showing items 3540-3559 of 7346

  • Iron supply and demand in an Antarctic shelf ecosystem 

    McGillicuddy, Dennis J.; Sedwick, Peter N.; Dinniman, M. S.; Arrigo, Kevin R.; Bibby, Thomas S.; Greenan, Blair J. W.; Hofmann, Eileen E.; Klinck, John M.; Smith, Walker O.; Mack, S. L.; Marsay, Christopher M.; Sohst, Bettina M.; van Dijken, Gert L. (John Wiley & Sons, 2015-10-08)
    The Ross Sea sustains a rich ecosystem and is the most productive sector of the Southern Ocean. Most of this production occurs within a polynya during the November–February period, when the availability of dissolved iron ...
  • Irreversibly increased nitrogen fixation in Trichodesmium experimentally adapted to elevated carbon dioxide 

    Hutchins, David A.; Walworth, Nathan G.; Webb, Eric A.; Saito, Mak A.; Moran, Dawn; McIlvin, Matthew R.; Gale, Jasmine; Fu, Fei-Xue (Nature Publishing Group, 2015-09-01)
    Nitrogen fixation rates of the globally distributed, biogeochemically important marine cyanobacterium Trichodesmium increase under high carbon dioxide (CO2) levels in short-term studies due to physiological plasticity. ...
  • Is ASFA sufficient? The role of inexpensive multidisciplinary databases in the marine science 

    Hooper-Lane, Christopher; Atkins, David P. (IAMSLIC, 1997)
  • Is biological productivity enhanced at the New England shelfbreak front? 

    Zhang, Weifeng G.; McGillicuddy, Dennis J.; Gawarkiewicz, Glen G. (John Wiley & Sons, 2013-01-31)
    A two-dimensional (cross-shelf) numerical model of the mean seasonal circulation offshore of southern New England predicts upwelling at the shelfbreak front. Expected ramifications of this upwelling include enhancement of ...
  • Is global ocean sprawl a cause of jellyfish blooms? 

    Duarte, Carlos M.; Pitt, Kylie A.; Lucas, Cathy H.; Purcell, Jennifer E.; Uye, Shin-Ichi; Robinson, Kelly L.; Brotz, Lucas; Decker, Mary Beth; Sutherland, Kelly R.; Malej, Alenka; Madin, Laurence P.; Mianzan, Hermes; Gili, Josep-Maria; Fuentes, Veronica; Atienza, Dacha; Pages, Francesc; Breitburg, Denise; Malek, Jennafer; Graham, William M.; Condon, Robert H. (Ecological Society of America, 2012-09-07)
    Jellyfish (Cnidaria, Scyphozoa) blooms appear to be increasing in both intensity and frequency in many coastal areas worldwide, due to multiple hypothesized anthropogenic stressors. Here, we propose that the proliferation ...
  • Is it the global net? 

    Avery, Beth; Pretorius, Martha (IAMSLIC, 2002)
  • Is science as global as we think? 

    Wong, Bob B. M.; Kokko, Hanna (2005)
    A cornerstone of scientific practice is the perceived freedom with which knowledge is disseminated. But does the scientific community make good use of all that is available? Researchers have, on occasion, been accused of ...
  • Is the Faroe Bank Channel overflow hydraulically controlled? 

    Girton, James B.; Pratt, Lawrence J.; Sutherland, David A.; Price, James F. (American Meteorological Society, 2006-12)
    The overflow of dense water from the Nordic Seas through the Faroe Bank Channel (FBC) has attributes suggesting hydraulic control—primarily an asymmetry across the sill reminiscent of flow over a dam. However, this aspect ...
  • Is the northern high-latitude land-based CO2 sink weakening? 

    Hayes, Daniel J.; McGuire, A. David; Kicklighter, David W.; Gurney, Kevin R.; Burnside, T. J.; Melillo, Jerry M. (American Geophysical Union, 2011-08-30)
    Studies indicate that, historically, terrestrial ecosystems of the northern high-latitude region may have been responsible for up to 60% of the global net land-based sink for atmospheric CO2. However, these regions have ...
  • Is there a need for a Mediterranean interest group? 

    Collins, Jean (IAMSLIC, 2002)
  • iSAM2 : incremental smoothing and mapping using the Bayes tree 

    Kaess, Michael; Johannsson, Hordur; Roberts, Richard; Ila, Viorela; Leonard, John J.; Dellaert, Frank (2011-04-06)
    We present a novel data structure, the Bayes tree, that provides an algorithmic foundation enabling a better understanding of existing graphical model inference algorithms and their connection to sparse matrix factorization ...

    Caton, Amy; Baca, David (IAMSLIC, 2015)
  • Isolated communities of Epsilonproteobacteria in hydrothermal vent fluids of the Mariana Arc seamounts 

    Huber, Julie A.; Cantin, Holly V.; Huse, Susan M.; Mark Welch, David B.; Sogin, Mitchell L.; Butterfield, David A. (2010-05)
    Low-temperature hydrothermal vent fluids represent access points to diverse microbial communities living in oceanic crust. This study examined the distribution, relative abundance, and diversity of Epsilonproteobacteria ...
  • Isolating the hydrodynamic triggers of the dive response in eastern oyster larvae 

    Wheeler, Jeanette D.; Helfrich, Karl R.; Anderson, Erik J.; Mullineaux, Lauren S. (John Wiley & Sons, 2015-05-06)
    Understanding the behavior of larval invertebrates during planktonic and settlement phases remains an open and intriguing problem in larval ecology. Larvae modify their vertical swimming behavior in response to water column ...
  • Isolation and characterization of novel psychrophilic, neutrophilic, Fe-oxidizing, chemolithoautotrophic α- and γ-proteobacteria from the deep sea 

    Edwards, Katrina J.; Rogers, Daniel R.; Wirsen, Carl O.; McCollom, Thomas M. (American Society for Microbiology, 2003-05)
    We report the isolation and physiological characterization of novel, psychrophilic, iron-oxidizing bacteria (FeOB) from low-temperature weathering habitats in the vicinity of the Juan de Fuca deep-sea hydrothermal area. ...
  • Isolation and identification of an epibiotic bacterium associated with heterocystous Anabaena cells 

    Stevenson, Bradley S.; Waterbury, John B. (Marine Biological Laboratory, 2006-04)
    Heterotrophic bacteria are commonly found in close associations with photosynthetic cyanobacteria in aquatic ecosystems. Some of these associations can be species-specific and mutualistic, resulting in optimal growth and ...
  • Isolation and phylogeny of novel cytochrome P450 genes from tunicates (Ciona spp.) : a CYP3 line in early deuterostomes? 

    Verslycke, Tim A.; Goldstone, Jared V.; Stegeman, John J. (2006-04-04)
    Cytochromes P450 (CYPs) form a gene superfamily involved in the biotransformation of numerous endogenous and exogenous natural and synthetic compounds. In humans, CYP3A4 is regarded as one of the most important CYPs due ...
  • Isolation and ultrastructural characterization of squid synaptic vesicles 

    Pekkurnaz, Gulcin; Fera, Andrea; Zimmerberg-Helms, Jessica; DeGiorgis, Joseph A.; Bezrukov, Ludmila; Blank, Paul S.; Mazar, Julia; Reese, Thomas S.; Zimmerberg, Joshua (Marine Biological Laboratory, 2011-04)
    Synaptic vesicles contain a variety of proteins and lipids that mediate fusion with the pre-synaptic membrane. Although the structures of many synaptic vesicle proteins are known, an overall picture of how they are organized ...
  • Isotope and trace element insights into heterogeneity of subridge mantle 

    Mallick, Soumen; Dick, Henry J. B.; Sachi-Kocher, Afi; Salters, Vincent J. M. (John Wiley & Sons, 2014-06-16)
    Geochemical data for abyssal peridotites are used to determine the relationship to mid-ocean ridge basalts from several locations at ridge segments on the SW Indian Ridge (SWIR), the Mid-Cayman-Rise (MCR), and the Mid-Atlantic ...
  • The isotope geochemistry of abyssal peridotites and related rocks 

    Snow, Jonathan E. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1993-06)
    This dissertation studies several aspects of the formation of the Earth's oceanic mantle and crust, using a variety of geologic techniques, principally major elements, radiogenic isotopes and trace elements, but including ...