Oceanography Faculty Research, Publications and Presentations: Recent submissions

Now showing items 41-60 of 151

  • Carbon cycling in the Arctic Archipelago: the export of Pacific carbon to the North Atlantic 

    Shadwick, E. H., T. Papakyriakou, AEF Prowe, D. Leong, et al. 2009. "Carbon cycling in the Arctic Archipelago: the export of Pacific carbon to the North Atlantic." Biogeosciences Discussions 6(1): 971-994.
    The Arctic Ocean is expected to be disproportionately sensitive to climatic changes, and is thought to be an area where such changes might be detected. The Arctic hydrological cycle is influenced by: runoff and precipitation, ...

  • Controls of the surface water partial pressure of CO2 in the North Sea 

    Thomas, H., Y. Bozec, K. Elkalay, HJW de Baar, et al. 2005. "Controls of the surface water partial pressure of CO2 in the North Sea." Biogeosciences 2(4): 323-334.
    The seasonal variability of the partial pressure of CO2 (pCO(2)) has been investigated in the North Sea, a northwest European shelf sea. Based on a seasonal and high spatial resolution data set the main controlling factors ...

  • Seasonal variability of the inorganic carbon system in the Amundsen Gulf region of the southeastern Beaufort Sea 

    Shadwick, E. H., H. Thomas, M. Chierici, B. Else, et al. 2011. "Seasonal variability of the inorganic carbon system in the Amundsen Gulf region of the southeastern Beaufort Sea." Limnology and Oceanography 56(1): 303-322.
    During a year-round occupation of Amundsen Gulf in the Canadian Arctic Archipelago dissolved inorganic and organic carbon (DIC, DOC), total alkalinity (TA), partial pressure of CO(2) (pCO(2)) and related parameters were ...

  • Satellite observations reveal high variability and a decreasing trend in CO sub(2) fluxes on the Scotian Shelf 

    Shadwick, E. H., H. Thomas, A. Comeau, SE Craig, et al. 2010. "Satellite observations reveal high variability and a decreasing trend in CO sub(2) fluxes on the Scotian Shelf." Biogeosciences Discussions 7(4): 5269-5304.
    We develop an algorithm to compute pCO sub(2) in the Scotian Shelf region (NW Atlantic) from satellite-based estimates of chlorophyll-a concentration, sea-surface temperature, and observed wind speed. This algorithm is ...

  • Direct observations of diel biological CO2 fixation on the Scotian Shelf, northwestern Atlantic Ocean 

    Thomas, H., S. E. Craig, B. J. W. Greenan, W. Burt, et al. 2012. "Direct observations of diel biological CO2 fixation on the Scotian Shelf, northwestern Atlantic Ocean." Biogeosciences 9(6): 2301-2309.
    Much of the variability in the surface ocean's carbon cycle can be attributed to the availability of sunlight, triggering surface heat flux and photosynthesis, which in turn regulate the biogeochemical cycling of carbon ...

  • The carbon budget of the North Sea 

    Thomas, H., Y. Bozec, HJW de Baar, K. Elkalay, et al. 2005. "The carbon budget of the North Sea." Biogeosciences 2(1): 87-96.
    A carbon budget has been established for the North Sea, a shelf sea on the NW European continental shelf. The carbon exchange fluxes with the North Atlantic Ocean dominate the gross carbon budget. The net carbon budget ...

  • Assessment of the processes controlling seasonal variations of dissolved inorganic carbon in the North Sea 

    Bozec, Yann, Helmuth Thomas, Laure-Sophie Schiettecatte, Alberto V. Borges, et al. 2006. "Assessment of the processes controlling seasonal variations of dissolved inorganic carbon in the North Sea." Limnology and Oceanography 51(6): 2746-2762.
    We used a seasonal North Sea data set comprising dissolved inorganic carbon (DIC), partial pressure of CO2 (pCO(2)), and inorganic nutrients to assess the abiotic and biological processes governing the monthly variations ...

  • Air-Sea CO2 fluxes on the Scotian Shelf: seasonal to multi-annual variability 

    Shadwick, E. H., H. Thomas, A. Comeau, S. E. Craig, et al. 2010. "Air-Sea CO2 fluxes on the Scotian Shelf: seasonal to multi-annual variability." Biogeosciences 7(11): 3851-3867.
    We develop an algorithm to compute pCO(2) in the Scotian Shelf region (NW Atlantic) from satellite-based estimates of chlorophyll-a concentration, sea-surface temperature, and observed wind speed. This algorithm is based ...

  • Spatiotemporal variations of fCO(2) in the North Sea 

    Omar, A. M., A. Olsen, T. Johannessen, M. Hoppema, et al. 2010. "Spatiotemporal variations of fCO(2) in the North Sea." Ocean Science 6(1): 77-89.
    Data from two Voluntary Observing Ship (VOS) (2005-2007) augmented with data subsets from ten cruises (1987-2005) were used to investigate the spatiotemporal variations of the CO2 fugacity in seawater (fCO(2)(sw)) in the ...

  • Probability and mitigation of vessel encounters with North Atlantic right whales 

    Vanderlaan, Angelia SM, James J. Corbett, Shannon L. Green, John A. Callahan, et al. 2009. "Probability and mitigation of vessel encounters with North Atlantic right whales." Endangered Species Research 6(3): 273-285.
    Successful mitigation of vessel-whale encounters requires quantitative estimates of vessel strikes, how strike rates change over time, where strikes are most likely to occur, and options for minimizing strikes. In addressing ...

  • Absolute probability estimates of lethal vessel strikes to North Atlantic right whales in Roseway Basin, Scotian Shelf 

    van der Hoop, Julie M., Angelia S. M. Vanderlaan, and Christopher T. Taggart. 2012. "Absolute probability estimates of lethal vessel strikes to North Atlantic right whales in Roseway Basin, Scotian Shelf." Ecological Applications 22(7): 2021-2033.
    Vessel strikes are the primary source of known mortality for the endangered North Atlantic right whale (Eubalaena glacialis). Multi-institutional efforts to reduce mortality associated with vessel strikes include vessel-routing ...

  • Reducing the risk of lethal encounters: vessels and right whales in the Bay of Fundy and on the Scotian Shelf 

    Vanderlaan, Angelia S. M., Christopher T. Taggart, Anna R. Serdynska, Robert D. Kenney, et al. 2008. "Reducing the risk of lethal encounters: vessels and right whales in the Bay of Fundy and on the Scotian Shelf." Endangered Species Research 4(3): 283-297.
    The North Atlantic right whale Eubalaena glacialis is endangered, in part, due to vessel-strike mortality. We use vessel traffic and right whale survey data (similar to 3 nautical miles [n miles], similar to 5.6 km resolution) ...

  • Mixed-stock analysis of Atlantic cod near the Gulf of St. Lawrence based on microsatellite DNA 

    Ruzzante, DE, CT Taggart, S. Lang, and D. Cook. 2000. "Mixed-stock analysis of Atlantic cod near the Gulf of St. Lawrence based on microsatellite DNA." Ecological Applications 10(4): 1090-1109.
    The collapse of various stock complexes of cod (Gadus morhua) in the northwest Atlantic has prompted a clarification of relationships among stock components. Here we examine the genetic composition of >2300 cod collected ...

  • Accelerometer tags: detecting and identifying activities in fish and the effect of sampling frequency 

    Broell, Franziska, Takuji Noda, Serena Wright, Paolo Domenici, et al. 2013. "Accelerometer tags: detecting and identifying activities in fish and the effect of sampling frequency." Journal of Experimental Biology 216(7): 1255-1264.
    Monitoring and measuring the behaviour and movement of aquatic animals in the wild is typically challenging, though micro-accelerometer (archival or telemetry) tags now provide the means to remotely identify and quantify ...

  • Genomic islands of divergence and their consequences for the resolution of spatial structure in an exploited marine fish 

    Bradbury, Ian R., Sophie Hubert, Brent Higgins, Sharen Bowman, et al. 2013. "Genomic islands of divergence and their consequences for the resolution of spatial structure in an exploited marine fish." Evolutionary Applications 6(3): 450-461.
    As populations diverge, genomic regions associated with adaptation display elevated differentiation. These genomic islands of adaptive divergence can inform conservation efforts in exploited species, by refining the ...

  • Lipid and gross energy content of North Atlantic right whale food, Calanus finmarchicus, in the Bay of Fundy 

    Michaud, Josee, and Christopher T. Taggart. 2007. "Lipid and gross energy content of North Atlantic right whale food, Calanus finmarchicus, in the Bay of Fundy." Endangered Species Research 3(1): 77-94.
    We address spatial and temporal distribution of abundance, lipid and caloric content and water column energy density of the copepod Calanus finmarchicus, a major food source for the north Atlantic right whale (NARW) Eubalaena ...

  • Spatial variation in right whale food, Calanus finmarchicus, in the Bay of Fundy 

    Michaud, J., and C. T. Taggart. 2011. "Spatial variation in right whale food, Calanus finmarchicus, in the Bay of Fundy." Endangered Species Research 15(3): 179-194.
    No abstract available.

  • GCM experiments on changes in atmospheric predictability associated with the PNA pattern and tropical SST anomalies 

    Sheng, J.. 2002. "GCM experiments on changes in atmospheric predictability associated with the PNA pattern and tropical SST anomalies." Tellus Series A-Dynamic Meteorology and Oceanography 54(4): 317-329.
    Based on results from a simple three-level quasi-geostrophic model, Lin and Derome suggested that atmospheric predictability is influenced by the Pacific/North American (PNA) pattern. In the present study, predictability ...

  • An Observational Study of the Energy-Transfer between the Seasonal Mean Flow and Transient Eddies 

    SHENG, J., and J. DEROME. 1991. "An Observational Study of the Energy-Transfer between the Seasonal Mean Flow and Transient Eddies." Tellus Series A-Dynamic Meteorology and Oceanography 43(2): 128-144.
    The large-scale energetics of the Northern Hemisphere atmospheric motions are computed in the frequency domain using a 5-year data set from the ECMWF operational analyses. The geographical distributions of kinetic energy ...

  • Water Column Seismic Images as Maps of Temperature Gradient 

    Ruddick, Barry, Haibin Song, Chongzhi Dong, and Luis Pinheiro. 2009. "Water Column Seismic Images as Maps of Temperature Gradient." Oceanography 22(1): 192-205.
    Multichannel seismic imaging of ocean water column features is anew interdisciplinary study that may become an accepted oceanographic toot in coming years. We now know that reflectors are associated with water column ...