Now showing items 1297-1316 of 5326

    • Diverse coral communities in naturally acidified waters of a Western Pacific reef 

      Shamberger, Kathryn E. F.; Cohen, Anne L.; Golbuu, Yimnang; McCorkle, Daniel C.; Lentz, Steven J.; Barkley, Hannah C. (John Wiley & Sons, 2014-01-16)
      Anthropogenic carbon dioxide emissions are acidifying the oceans, reducing the concentration of carbonate ions ([CO32−]) that calcifying organisms need to build and cement coral reefs. To date, studies of a handful of ...
    • Diverse styles of submarine venting on the ultraslow spreading Mid-Cayman Rise 

      German, Christopher R.; Bowen, Andrew D.; Coleman, M. L.; Honig, D. L.; Huber, Julie A.; Jakuba, Michael V.; Kinsey, James C.; Kurz, Mark D.; Leroy, S.; McDermott, Jill M.; Mercier de Lepinay, B.; Nakamura, Ko-ichi; Seewald, Jeffrey S.; Smith, J. L.; Sylva, Sean P.; Van Dover, Cindy L.; Whitcomb, Louis L.; Yoerger, Dana R. (2010-06-24)
      Thirty years after the first discovery of high-temperature submarine venting, the vast majority of the global Mid Ocean Ridge remains unexplored for hydrothermal activity. Of particular interest are the world’s ultra-slow ...
    • Diversity and characterization of novel Cytochrome P450 2 genes in the marine teleost Fundulus Heteroclitus 

      Oleksiak, Marjorie F. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1997-09)
      The multiplicity and roles of cytochrome P450 CYP genes in the 2 family are not well known in fish. Characterizations of CYP2 genes were done in the killifish, Fundulus heteroclitus. Multiple cDNAs from three CYP2 ...
    • Diversity and dynamics of a North Atlantic coastal Vibrio community 

      Thompson, Janelle R.; Randa, Mark A.; Marcelino, Luisa A.; Tomita-Mitchell, Aoy; Lim, Ee Lin; Polz, Martin F. (American Society for Microbiology, 2004-07)
      Vibrios are ubiquitous marine bacteria that have long served as models for heterotrophic processes and have received renewed attention because of the discovery of increasing numbers of facultatively pathogenic strains. ...
    • Diversity and dynamics of a widespread bloom of the toxic dinoflagellate Alexandrium fundyense 

      Erdner, Deana L.; Richlen, Mindy L.; McCauley, Linda A. R.; Anderson, Donald M. (Public Library of Science, 2011-07-29)
      Historically, cosmopolitan phytoplankton species were presumed to represent largely unstructured populations. However, the recent development of molecular tools to examine genetic diversity have revealed differences in ...
    • Diversity and spatial distribution of hydrazine oxidoreductase (hzo) gene in the oxygen minimum zone off Costa Rica 

      Kong, Liangliang; Jing, Hongmei; Kataoka, Takafumi; Buchwald, Carolyn; Liu, Hongbin (Public Library of Science, 2013-10-31)
      Anaerobic ammonia oxidation (anammox) as an important nitrogen loss pathway has been reported in marine oxygen minimum zones (OMZs), but the community composition and spatial distribution of anammox bacteria in the eastern ...
    • Diversity and structure of bacterial chemolithotrophic communities in pine forest and agroecosystem soils 

      Tolli, John D.; King, Gary M. (American Society for Microbiology, 2005-12)
      Obligate lithotrophs (e.g., ammonia oxidizers) and facultative lithotrophs (e.g., CO and hydrogen oxidizers) collectively comprise a phylogenetically diverse functional group that contributes significantly to carbon ...
    • Diversity in sound pressure levels and estimated active space of resident killer whale vocalizations 

      Miller, Patrick J. O. (2005-12-02)
      Signal source intensity and detection range, which integrates source intensity with propagation loss, background noise and receiver hearing abilities, are important characteristics of communication signals. Apparent source ...
    • Diversity of ageing across the tree of life 

      Jones, Owen R.; Scheuerlein, Alexander; Salguero-Gomez, Roberto; Camarda, Carlo Giovanni; Schaible, Ralf; Casper, Brenda B.; Dahlgren, Johan P.; Ehrlen, Johan; Garcia, María B.; Menges, Eric S.; Quintana-Ascencio, Pedro F.; Caswell, Hal; Baudisch, Annette; Vaupel, James W. (2013-10)
      Evolution drives and is driven by demography. A genotype moulds its phenotype’s age-patterns of mortality and fertility in an environment; these two patterns in turn determine the genotype’s fitness in that environment. ...
    • Diversity of Archaea and detection of crenarchaeotal amoA genes in the rivers Rhine and Têt 

      Herfort, Lydie; Kim, Jung-Hyun; Coolen, Marco J. L.; Abbas, Ben; Schouten, Stefan; Herndl, Gerhard J.; Sinninghe Damste, Jaap S. (Inter-Research, 2009-04-28)
      Pelagic archaeal phylogenetic diversity and the potential for crenarchaeotal nitrification of Group 1.1a were determined in the rivers Rhine and Têt by 16S rRNA sequencing, catalyzed reported deposition-fluorescence in ...
    • Diversity of the marine cyanobacterium Trichodesmium : characterization of the Woods Hole culture collection and quantification of field populations 

      Hynes, Annette Michelle (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2009-09)
      Trichodesmium is a colonial, N2-fixing cyanobacterium found in tropical oceans. Species of Trichodesmium are genetically similar but several species exist together in the same waters. In order to coexist, Trichodesmium ...
    • Diversity of thiosulfate-oxidizing bacteria from marine sediments and hydrothermal vents 

      Teske, Andreas; Brinkhoff, T.; Muyzer, Gerard; Moser, D. P.; Rethmeier, J.; Jannasch, Holger W. (American Society for Microbiology, 2000-08)
      Species diversity, phylogenetic affiliations, and environmental occurrence patterns of thiosulfate-oxidizing marine bacteria were investigated by using new isolates from serially diluted continental slope and deep-sea ...
    • Dividing up the pie : whales, fish, and humans as competitors 

      Ruzicka, James J.; Steele, John H.; Ballerini, Tosca; Gaichas, Sarah K.; Ainley, David G. (2013-04-29)
      Similarly structured food web models of four coastal ecosystems (Northern California Current, Central Gulf of Alaska, Georges Bank, southwestern Antarctic Peninsula) were used to investigate competition among whales, ...
    • Diving behavior of the reef manta ray links coral reefs with adjacent deep pelagic habitats 

      Braun, Camrin D.; Skomal, Gregory B.; Thorrold, Simon R.; Berumen, Michael L. (Public Library of Science, 2014-02-06)
      Recent successful efforts to increase protection for manta rays has highlighted the lack of basic ecological information, including vertical and horizontal movement patterns, available for these species. We deployed pop-up ...
    • Do Trichodesmium spp. populations in the North Atlantic export most of the nitrogen they fix? 

      McGillicuddy, Dennis J. (John Wiley & Sons, 2014-02-20)
      A new observational synthesis of diazotrophic biomass and nitrogen fixation provides the opportunity for systematic quantitative evaluation of these aspects in biogeochemical models. One such model of the Atlantic Ocean ...
    • Documentation for the CETACEA database of marine mammal literature references 

      Watkins, William A.; Daher, Mary Ann; Haley, Nancy J. (Woods Hole Oceanographic Institution, 1990-06)
      This documentation for the CETACEA database of marine mammal literature references updates and expands the original work by Watkins, Bird, Moore, and Tyack 1988 (Reference Database Marine Mammal Literature, Technical ...
    • Does a ballast effect occur in the surface ocean? 

      Sanders, Richard J.; Morris, Paul J.; Poulton, Alex J.; Stinchcombe, Mark C.; Charalampopoulou, Anastasia; Lucas, Mike I.; Thomalla, Sandy J. (American Geophysical Union, 2010-04-29)
      The oceanic biological carbon pump (BCP), a large (10 GT C yr−1) component of the global carbon cycle, is dominated by the sinking (export) of particulate organic carbon (POC) from surface waters. In the deep ocean, strong ...
    • Does fish larval dispersal differ between high and low latitudes? 

      Leis, Jeffrey M.; Caselle, Jennifer E.; Bradbury, Ian R.; Kristiansen, Trond; Llopiz, Joel K.; Miller, Michael J.; O'Connor, Mary I.; Paris, Claire B.; Shanks, Alan L.; Sogard, Susan M.; Swearer, Stephen E.; Treml, Eric A.; Vetter, Russell D.; Warner, Robert R. (2013-02)
      Several factors lead to expectations that the scale of larval dispersal and population connectivity of marine animals differs with latitude. We examine this expectation for demersal shorefishes, including relevant ...
    • Does the marine biosphere mix the ocean? 

      Dewar, William K.; Bingham, Rory J.; Iverson, R. L.; Nowacek, Douglas P.; St. Laurent, Louis C.; Wiebe, Peter H. (Sears Foundation for Marine Research, 2006-07)
      Ocean mixing is thought to control the climatically important oceanic overturning circulation. Here we argue the marine biosphere, by a mechanism like the bioturbation occurring in marine sediments, mixes the oceans as ...
    • Domains of depleted mantle : new evidence from hafnium and neodymium isotopes 

      Salters, Vincent J. M.; Mallick, Soumen; Hart, Stanley R.; Langmuir, Charles H.; Stracke, Andreas (American Geophysical Union, 2011-08-02)
      Isotope systematics of basalts provide information on the distribution of mantle components and the length scale of mantle heterogeneity. To obtain this information, high data and sampling density are crucial. We present ...