Now showing items 218-237 of 1000

    • Daily cycle in oxygen consumption by the sea anemone Nematostella vectensis Stephenson 

      Maas, Amy E.; Jones, Ian T.; Reitzel, Adam M.; Tarrant, Ann M. (The Company of Biologists, 2016-01-15)
      In bilaterian animals, the circadian clock is intimately involved in regulating energetic metabolism. Although cnidarians exhibit diel behavioral rhythms including cycles in locomotor activity, tentacle extension and ...
    • Data report for Atlantic pelagic zoogeography 

      Backus, Richard H.; Craddock, James E. (Woods Hole Oceanographic Institution, 1977-01)
      This data report fulfils two functions. It (1) gives station data for 1022 midwater trawl collections made in the Atlantic Ocean between 1961 and 1974 by the writers and their colleagues (Table 1, Figure 1, and Appendix ...
    • A datalogger to identify vocalizing dolphins 

      Tyack, Peter L.; Recchia, Cheri A. (Acoustical Society of America, 1991-09)
      A datalogger was developed to identify vocalizing dolphins within socially interacting captive groups. Every 50 ms the logger stores data on the level and frequency of detected sound. Dataloggers are temporarily attached ...
    • Deadly diving? Physiological and behavioural management of decompression stress in diving mammals 

      Hooker, Sascha K.; Fahlman, Andreas; Moore, Michael J.; Aguilar De Soto, Natacha; Bernaldo de Quiros, Yara; Brubakk, A. O.; Costa, Daniel P.; Costidis, Alexander M.; Dennison, Sophie; Falke, K. J.; Fernandez, Antonio; Ferrigno, Massimo; Fitz-Clarke, J. R.; Garner, M. M.; Houser, Dorian S.; Jepson, Paul D.; Ketten, Darlene R.; Kvadsheim, P. H.; Madsen, Peter T.; Pollock, N. W.; Rotstein, David S.; Rowles, Teresa K.; Simmons, S. E.; Van Bonn, William; Weathersby, P. K.; Weise, M. J.; Williams, T. M.; Tyack, Peter L. (Royal Society, 2011-12-21)
      Decompression sickness (DCS; ‘the bends’) is a disease associated with gas uptake at pressure. The basic pathology and cause are relatively well known to human divers. Breath-hold diving marine mammals were thought to be ...
    • Decadal changes in zooplankton of the Northeast U.S. continental shelf 

      Bi, Hongsheng; Ji, Rubao; Liu, Hui; Jo, Young-Heon; Hare, Jonathan A. (Public Library of Science, 2014-01-31)
      The abundance of the subarctic copepod, Calanus finmarchicus, and temperate, shelf copepod, Centropages typicus, was estimated from samples collected bi-monthly over the Northeast U.S. continental shelf (NEUS) from 1977–2010. ...
    • Decompression sickness (‘the bends’) in sea turtles 

      Garcia-Parraga, D.; Crespo-Picazo, J. L.; Bernaldo de Quiros, Yara; Cervera, V.; Marti-Bonmati, L.; Diaz-Delgado, J.; Arbelo, Manuel; Moore, Michael J.; Jepson, Paul D.; Fernandez, Antonio (Inter-Research, 2014-10-16)
      Decompression sickness (DCS), as clinically diagnosed by reversal of symptoms with recompression, has never been reported in aquatic breath-hold diving vertebrates despite the occurrence of tissue gas tensions sufficient ...
    • Decompression vs. decomposition : distribution, amount, and gas composition of bubbles in stranded marine mammals 

      Bernaldo de Quiros, Yara; Gonzaez-Diaz, Oscar; Arbelo, Manuel; Sierra, Eva; Sacchini, Simona; Fernandez, Antonio (Frontiers Media, 2012-06-04)
      Gas embolic lesions linked to military sonar have been described in stranded cetaceans including beaked whales. These descriptions suggest that gas bubbles in marine mammal tissues may be more common than previously thought. ...
    • The deduction theorem and ecology 

      Hulburt, Edward M. (2008-04-11)
      The deduction theorem is based primarily on the formula [A superset of (B superset of C)] superset of [(A superset of B) superset of (A superset of C)]. The fisheries of Newfoundland, Iceland, and west Greenland have ...
    • Deep ocean circulation and transport where the East Pacific Rise at 9–10°N meets the Lamont seamount chain 

      Lavelle, J. William; Thurnherr, Andreas M.; Ledwell, James R.; McGillicuddy, Dennis J.; Mullineaux, Lauren S. (American Geophysical Union, 2010-12-31)
      We report the first 3-D numerical model study of abyssal ocean circulation and transport over the steep topography of the East Pacific Rise (EPR) and adjoining Lamont seamount chain in the eastern tropical Pacific. We begin ...
    • Deep-sea mining of seafloor massive sulfides 

      Hoagland, Porter; Beaulieu, Stace E.; Tivey, Maurice A.; Eggert, Roderick G.; German, Christopher R.; Glowka, Lyle; Lin, Jian (2009-10-28)
      The potential emergence of an ocean mining industry to exploit seafloor massive sulfides could present opportunities for oceanographic science to facilitate seafloor mineral development in ways that lessen environmental harms.
    • Deep-sea scleractinian coral age and depth distributions in the northwest Atlantic for the last 225,000 years 

      Robinson, Laura F.; Adkins, Jess F.; Scheirer, Daniel S.; Fernandez, Diego P.; Gagnon, Alexander C.; Waller, Rhian G. (University of Miami - Rosenstiel School of Marine and Atmospheric Science, 2007-11-01)
      Deep-sea corals have grown for over 200,000 yrs on the New England Seamounts in the northwest Atlantic, and this paper describes their distribution both with respect to depth and time. Many thousands of fossil scleractinian ...
    • Defining DNA-based operational taxonomic units for microbial-eukaryote ecology 

      Caron, David A.; Countway, Peter D.; Savai, Pratik; Gast, Rebecca J.; Schnetzer, Astrid; Moorthi, Stefanie D.; Dennett, Mark R.; Moran, Dawn M.; Jones, Adriane C. (2009-06-19)
      DNA sequence information has been increasingly used in ecological research on microbial eukaryotes. Sequence-based approaches have included studies of the total diversity of selected ecosystems, the autecology of ...
    • Defining planktonic protist functional groups on mechanisms for energy and nutrient acquisition : incorporation of diverse mixotrophic strategies 

      Mitra, Aditee; Flynn, Kevin J.; Tillmann, Urban; Raven, John A.; Caron, David A.; Stoecker, Diane K.; Not, Fabrice; Hansen, Per J.; Hallegraeff, Gustaaf M.; Sanders, Robert W.; Wilken, Susanne; McManus, George; Johnson, Matthew D.; Pitta, Paraskevi; Våge, Selina; Berge, Terje; Calbet, Albert; Thingstad, Frede; Jeong, Hae Jin; Burkholder, JoAnn M.; Glibert, Patricia M.; Graneli, Edna; Lundgren, Veronica (Elsevier, 2016-01-03)
      Arranging organisms into functional groups aids ecological research by grouping organisms (irrespective of phylogenetic origin) that interact with environmental factors in similar ways. Planktonic protists traditionally ...
    • Defining the ecological and physiological traits of phytoplankton across marine ecosystems 

      Alexander, Harriet (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2016-02)
      Marine phytoplankton are central players in the global carbon cycle, responsible for nearly half of global primary production. The identification of the factors controlling phytoplankton ecology, physiology, and, ultimately, ...
    • Defining the word “seamount” 

      Staudigel, Hubert; Koppers, Anthony A. P.; Lavelle, J. William; Pitcher, Tony J.; Shank, Timothy M. (Oceanography Society, 2010-03)
      The term seamount has been defined many times (e.g., Menard, 1964; Wessel, 2001; Schmidt and Schmincke, 2000; Pitcher et al., 2007; International Hydrographic Organization, 2008; Wessel et al., 2010) but there is no ...
    • Delayed effects of developmental exposure to low levels of the aryl hydrocarbon receptor agonist 3,3′,4,4′,5-pentachlorobiphenyl (PCB126) on adult zebrafish behavior 

      Glazer, Lilah; Hahn, Mark E.; Aluru, Neelakanteswar (2015-11)
      Polychlorinated biphenyls (PCBs) are ubiquitous environmental contaminants. The most toxic PCBs are the non-ortho-substituted ("dioxin-like") congeners that act through the aryl hydrocarbon receptor (AHR) pathway. In humans, ...
    • A demographic model for sex ratio evolution and the effects of sex-biased offspring costs 

      Shyu, Esther; Caswell, Hal (John Wiley & Sons, 2016-02-09)
      The evolution of the primary sex ratio, the proportion of male births in an individual's offspring production strategy, is a frequency-dependent process that selects against the more common sex. Because reproduction is ...
    • Demographics of lytic viral infection of coastal ocean Vibrio 

      Kauffman, Anne K. M. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2014-06)
      Viral predation on bacteria in the ocean liberates carbon from the particulate fraction, where it is accessible to higher trophic levels, and redirects it to the dissolved fraction, where it supports microbial growth. ...
    • Denitrification likely catalyzed by endobionts in an allogromiid foraminifer 

      Bernhard, Joan M.; Edgcomb, Virginia P.; Casciotti, Karen L.; McIlvin, Matthew R.; Beaudoin, David J. (2011-10)
      Nitrogen can be a limiting macronutrient for carbon uptake by the marine biosphere. The process of denitrification (conversion of nitrate to gaseous compounds, including N2) removes bioavailable nitrogen, particularly in ...
    • Departures from neutrality induced by niche and relative fitness differences 

      Carroll, Ian T.; Nisbet, Roger M. (Springer, 2015-04-08)
      Breaking the core assumption of ecological equivalence in Hubbell’s “neutral theory of biodiversity” requires a theory of species differences. In one framework for characterizing differences between competing species, ...