Now showing items 59-78 of 879

  • Bacterial group II introns in a deep-sea hydrothermal vent environment 

    Podar, Mircea; Mullineaux, Lauren S.; Huang, Hon-Ren; Perlman, Philip S.; Sogin, Mitchell L. (American Society for Microbiology, 2002-12)
    Group II introns are catalytic RNAs and mobile retrotransposable elements known to be present in the genomes of some nonmarine bacteria and eukaryotic organelles. Here we report the discovery of group II introns in a ...
  • Bacterivory by phototrophic picoplankton and nanoplankton in Arctic waters 

    Sanders, Robert W.; Gast, Rebecca J. (2011-11)
    Mixotrophy, the combination of phototrophy and heterotrophy within the same individual, is widespread in oceanic systems. Yet, neither the presence nor ecological impact of mixotrophs has been identified in an Arctic marine ...
  • Barnacle larvae in ice : survival, reproduction, and time to post settlement metamorphosis 

    Pineda, Jesus; DiBacco, Claudio; Starczak, Victoria R. (2005)
    Late stage larvae (cyprids) of the barnacle Semibalanus balanoides frequently encounter freezing conditions along the northwest Atlantic coast. S. balanoides cyprids survived for more than 4 weeks embedded in sea ice, and ...
  • Basal gnathostomes provide unique insights into the evolution of vitamin B12 binders 

    Lopes-Marques, Monica; Ruivo, Raquel; Delgado, Ines; Wilson, Jonathan M.; Aluru, Neelakanteswar; Castro, L. Filipe C. (Oxford University Press, 2014-12-31)
    The uptake and transport of vitamin B12 (cobalamin; Cbl) in mammals involves a refined system with three evolutionarily related transporters: transcobalamin 1 (Tcn1), transcobalamin 2 (Tcn2), and the gastric intrinsic ...
  • Baseline hearing abilities and variability in wild beluga whales (Delphinapterus leucas) 

    Castellote, Manuel; Mooney, T. Aran; Quakenbush, Lori; Hobbs, Roderick; Goertz, Caroline; Gaglione, Eric (2014-01)
    While hearing is the primary sensory modality for odontocetes, there are few data addressing variation within a natural population. This work describes the hearing ranges (4-150 kHz) and sensitivities of seven apparently ...
  • Bathymetric zonation of deep-sea macrofauna in relation to export of surface phytoplankton production 

    Wei, Chih-Lin; Rowe, Gilbert T.; Hubbard, G. Fain; Scheltema, Amelie H.; Wilson, George D. F.; Petrescu, Iorgu; Foster, John M.; Wicksten, Mary K.; Chen, Min; Davenport, Roe; Soliman, Yousria; Wang, Yuning (Inter-Research, 2010-01-28)
    Macrobenthos of the deep, northern Gulf of Mexico (GoM) was sampled with box cores (0.2 m2) along multiple cross-depth transects extending from depths of 200 m to the maximum depth of the basin at 3700 m. Bathymetric (depth) ...
  • Beaked whale necropsy findings for strandings in the Bahamas, Puerto Rico, and Madeira, 1999-2002 

    Ketten, Darlene R. (Woods Hole Oceanographic Institution, 2005-11)
    Necropsy and histologic findings for examinations performed on beaked whales stranding between October, 1999 and June, 2002 are summarized and the finding interpreted. They are presented in chronological order of exams ...
  • Beaked whales echolocate on prey 

    Johnson, Mark P.; Madsen, Peter T.; Zimmer, Walter M. X.; Aguilar De Soto, Natacha; Tyack, Peter L. (Royal Society, 2004-12-07)
    Beaked whales (Cetacea: Ziphiidea) of the genera Ziphius and Mesoplodon are so difficult to study that they are mostly known from strandings. How these elusive toothed whales use and react to sound is of concern because ...
  • Beaked whales respond to simulated and actual navy sonar 

    Tyack, Peter L.; Zimmer, Walter M. X.; Moretti, David J.; Southall, Brandon L.; Claridge, Diane E.; Durban, John W.; Clark, Christopher W.; D'Amico, Angela; DiMarzio, Nancy A.; Jarvis, Susan; McCarthy, Elena; Morrissey, Ronald; Ward, Jessica; Boyd, Ian L. (Public Library of Science, 2011-03-14)
    Beaked whales have mass stranded during some naval sonar exercises, but the cause is unknown. They are difficult to sight but can reliably be detected by listening for echolocation clicks produced during deep foraging ...
  • Behavioral ecology of coral reef fishes at spawning aggregation sites 

    Sancho, Gorka (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1998-04)
    Coral reef fishes aggregate to spawn on certain locations of reefs. This thesis is an extensive investigation of the behavioral and ecological relations between spawning reef fishes, predators and their environment at a ...
  • Behavioral impacts of disentanglement of a right whale under sedation and the energetic cost of entanglement 

    van der Hoop, Julie M.; Moore, Michael J.; Fahlman, Andreas; Bocconcelli, Alessandro; George, Clay; Jackson, Katharine; Miller, Carolyn A.; Morin, David; Pitchford, Thomas; Rowles, Teresa K.; Smith, Jamison; Zoodsma, Barb (2013-03)
    Protracted entanglement in fishing gear often leads to emaciation through reduced mobility and foraging ability, and energy budget depletion from the added drag of towing gear for months or years. We examined changes in ...
  • The behavioral physiology of labroid fishes 

    Curran, Mary C. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1992-09)
    The family Labridae, or wrasses, is one of the most speciose fish families and is exceptional in its wide range of morphological and behavioral diversities. The cunner Tautogolabrus adspersus is one of two temperate-dwelling ...
  • Behaviour of the ocean DMS(P) pools in the Sargasso Sea viewed in a coupled physical-biogeochemical ocean model 

    Le Clainche, Yvonnick; Levasseur, Maurice; Vezina, Alain; Dacey, John W. H.; Saucier, Francois J. (National Research Council Canada, 2004-06-23)
    The dimethylsulfide (DMS) production model NODEM (Northern Oceans DMS Emission Model) was coupled with the water column ocean model GOTM (General Ocean Turbulence Model) that includes a two-equation k&150;ε turbulence ...
  • The Belukha whale : natural behavior and bioacoustics 

    Belkovitch, V. M.; Shekotov, M. N. (Woods Hole Oceanographic Institution, 1993)
    This monograph presents new original material on the behavior and bioacoustic signals of the belukha whale in its natural environment. A typological classification of the species' signals is based on researches that were ...
  • Benthic community response to ice algae and phytoplankton in Ny Ålesund, Svalbard 

    McMahon, Kelton W.; Ambrose, William G.; Johnson, Beverly J.; Sun, Ming-Yi; Lopez, Glenn R.; Clough, Lisa M.; Carroll, Michael L. (Inter-Research, 2006-04-03)
    We assessed the digestibility and utilization of ice algae and phytoplankton by the shallow, subtidal benthos in Ny Ålesund (Kongsfjord) on Svalbard (79°N, 12°E) using chlorophyll a (chl a), essential fatty acids (EFAs) ...
  • Benthic fauna of the Gulf of Maine sampled by R/V Gosnold Cruise 179 and DSRV Alvin Dives 329, 330, 331, and 404 : infaunal species list 

    Rowe, Gilbert T.; Polloni, Pamela T.; Haedrich, Richard L. (Woods Hole Oceanographic Institution, 1975-07)
    Bottom samples were collected in the Gulf of Maine during July, 1971 and June, 1972 using DSRV ALVIN and RV GOSNOLD. The techniques and results are embodied in a paper entitled "Quantitative Biological Assessment of the ...
  • Benthic protists and fungi of Mediterranean deep hypsersaline anoxic basin redoxcline sediments 

    Bernhard, Joan M.; Kormas, Konstantinos; Pachiadaki, Maria G.; Rocke, Emma; Beaudoin, David J.; Morrison, Colin; Visscher, Pieter T.; Cobban, Alec; Starczak, Victoria R.; Edgcomb, Virginia P. (Frontiers Media, 2014-11-12)
    Some of the most extreme marine habitats known are the Mediterranean deep hypersaline anoxic basins (DHABs; water depth ∼3500 m). Brines of DHABs are nearly saturated with salt, leading many to suspect they are uninhabitable ...
  • Benz(a)anthracene in benthic marine environments : bioavailability, metabolism, and physiological effects on the polychaete Neries virens 

    McElroy, Anne Elizabeth (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1985-02)
    The fate of [14C- 121 benz(a)anthracene (BA) was followed in benthic microcosm experiments in the presence and absence of the polychaete Nereis virens. In concert with chemical analysis of BA and its metabolites in all ...
  • Beyond R0 : demographic models for variability of lifetime reproductive output 

    Caswell, Hal (Public Library of Science, 2011-06-29)
    The net reproductive rate measures the expected lifetime reproductive output of an individual, and plays an important role in demography, ecology, evolution, and epidemiology. Well-established methods exist to calculate ...
  • Bigger is not always better : offspring size does not predict growth or survival for seven ascidian species 

    Jacobs, Molly W.; Sherrard, Kristin M. (Ecological Society of America, 2010-12)
    The presumed trade-off between offspring size and quality predicted by life history theory is often invoked to explain the wide range of propagule sizes observed in animals and plants. This trade-off is broadly supported ...