Now showing items 534-553 of 869

    • Molecular determination of marine iron ligands by mass spectrometry 

      Boiteau, Rene M. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2016-02)
      Marine microbes produce a wide variety of metal binding organic ligands that regulate the solubility and availability of biologically important metals such as iron, copper, cobalt, and zinc. In marine environments where ...
    • Molecular insights into the niche of harmful brown tides 

      Wurch, Louie L. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2011-09)
      Recurrent brown tide blooms caused by the harmful alga Aureococcus anophagefferens have decimated coastal ecosystems and shellfisheries along the Eastern U.S. and South Africa. The exact mechanisms controlling bloom ...
    • Molecular phylogenetics of the Metazoan clade Lophotrochozoa 

      Passamaneck, Yale J. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2003-09)
      DNA sequencing and phylogenetic analyses were conducted to investigate evolutionary relationships between taxa within the metazoan clade Lophotrochozoa. Chapter 1 presents an introduction to phylogenetics of the Metazoa ...
    • Molecular regulation of the induction of cytochrome P-450E in the estuarine fish Fundulus heteroclitus 

      Kloepper-Sams, Pamela J. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1988-12)
      Induction of the aryl hydrocarbon hydroxylase (AHH) P450IA1 occurs in many organisms following exposure to polycyclic aromatic hydrocarbons (PAH). Regulation of induction of P450IA 1 (called P-450E) was examined in the ...
    • Momentum, mass, heat, and vorticity balances from oceanic measurements of current and temperature 

      Bryden, Harry L. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1975-07)
      The local dynamics of low-frequency motions in the MODE region are investigated from three arrays of moored measurements of current and temperature. Tests for lowest-order balances of horizontal momentum, mass, heat, heat ...
    • Monthly variability in upper ocean biogeochemistry due to mesoscale eddy activity in the Saragasso Sea 

      Sweeney, Erin N. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2001-05)
      A comparison of monthly biogeochemical measurements made from 1993 to 1995, combined with hydrography and satellite altimetry, was used to observe the impacts of nine eddy events on primary productivity and particle flux ...
    • Moored observations of shelfbreak processes at the inflow to and outflow from the Arctic Ocean 

      von Appen, Wilken-Jon (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2013-02)
      Two high-resolution mooring arrays extending from the outer shelf to the mid continental slope are used to elucidate shelf-basin exchange at the inflow to and the outflow from the Arctic Ocean. Pacific Water entering the ...
    • Morphometric analysis of ears in two families of pinnipeds 

      Marsh, Sarah Elizabeth (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2001-08)
      Pinniped (seal and sea lion) auditory systems operate in two acoustically distinct environments, air and water. Piniped species differ in how much time they typically spend in water. They therefore offer an exceptional ...
    • Motion sensitivity of flame ionization detectors 

      Gularte, Ronald Carl (Woods Hole Oceanographic Institution, 1972-05)
      A portable gas chromatograph, using a single flame ionization detector, was constructed. The unit was tested for response to surge, sway and heave accelerations up to 0.3g. Also the detector's response was studied for ...
    • A multi-dimensional spectral description of ocean variability with applications 

      Wortham, Cimarron J. L. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2013-02)
      Efforts to monitor the ocean for signs of climate change are hampered by ever-present noise, in the form of stochastic ocean variability, and detailed knowledge of the character of this noise is necessary for estimating ...
    • Multichannel maximum entropy method of spectral analysis applied to offshore structures 

      Briggs, Michael Jeffrey (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1981-06)
      The multichannel Maximum Entropy Method (MEM) of spectral analysis is developed and applied in the dynamic analysis of offshore structures. Two different algorithms are implemented and compared with the conventional ...
    • Multiple equilibria and low-frequency variability of wind-driven ocean models 

      Primeau, Francois W. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1998-06)
      The steady states of two models of the double-gyre wind-driven ocean circulation are studied. The link between the steady state solutions of the models and their time-mean and low-frequency variability is explored to ...
    • Multisensor modeling underwater with uncertain information 

      Stewart, W. Kenneth (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1988-07-05)
      This thesis develops an approach to the construction of multidimensional stochastic models for intelligent systems exploring an underwater environment. The important characteristics shared by such applications are: ...
    • Mutant analysis of luminescence and autoinduction in a marine bacterium 

      Kuo, Alan J. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1994-12)
      The marine symbiotic bacterium Vibrio fischeri is striking for its ability both to emit light and to dramatically regulate light emission using a cell-to-cell signalling mechanism called autoinduction. The latter is ...
    • N2 fixation by subsurface populations of Trichodesmium : an important source of new nitrogen to the North Atlantic Ocean 

      Heithoff, Abigail (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2011-02)
      Trichodesmium, a genus of diazotrophic cyanobacteria, is an important contributor to the marine nitrogen (N) and carbon (C) cycles. The extent to which Trichodesmium dinitrogen (N2) fixation contributes to the marine N ...
    • Natural and synthetic estrogens in wastewater treatment plant effluent and the coastal ocean 

      Griffith, David R. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2013-09)
      Steroidal estrogens are potent endocrine disrupting chemicals that are naturally excreted by vertebrates (e.g., humans and fish) and can enter natural waters through the discharge of treated and raw sewage. Because ...
    • The nature and origin of fine-scale sea-floor relief 

      Shih, John Shai-Fu (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1979-12)
      Bathymetric profiles of mid-ocean ridges show that the morphology of ridge crests and the roughness of sea-floor relief created there is commonly related to the spreading rate. To study the creation of fine-scale sea-floor ...
    • Navigation and manipulation for autonomous underwater dismantling of offshore structures 

      Welch, Christian L. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2015-09)
      The dismantling of offshore structures, known as decommissioning, is a complex task in the oil and gas industry, driven by strict environmental standards. As the environments in which decommissioning is necessary become ...
    • Near-equatorial deep circulation in the Indian and Pacific oceans 

      Johnson, Gregory C. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1990-09)
      Theory and observations of deep circulation in the near-equatorial Atlantic, Indian and Pacific Oceans are reviewed. Flow of deep and bottom water in the near-equatorial Indian and Pacific oceans, the two oceans with ...
    • Near-inertial and thermal upper ocean response to atmospheric forcing in the North Atlantic Ocean 

      Silverthorne, Katherine E. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2010-06)
      Observational and modeling techniques are employed to investigate the thermal and inertial upper ocean response to wind and buoyancy forcing in the North Atlantic Ocean. First, the seasonal kinetic energy variability of ...