Now showing items 5756-5775 of 10018

  • Nitrification studies of ship channel waters. 

    Hung, Y.; Eckenfelder, W.W., Jr. (, 1976)
    The study described was conducted on the Houston Ship Channel water in Texas to determine the nitrification of channel water samples; the effects of channel flow and degree of treatment on the nitrification process under ...
  • Nitrifying bacteria study, Houston Ship Channel, 27 July 1977 

    Miertschin, James D. (Espey, Huston and Associates, Incorporated, 1977)
    The Texas Department of Water Resources conducted a sampling survey on the Houston Ship Channel on 27 July 1977, collecting water and sediment samples for enumeration of nitrifying bacteria by Espey, Huston & Associates, ...
  • Nitrogen and carbon isotopic composition of high-molecular-weight dissolved organic matter in marine environments 

    Guo LD; Tanaka N; Schell DM; Santschi PH (, 2003)
    High-molecular-weight (HMW) dissolved organic matter (DOM) was isolated using cross-flow ultrafiltration from seawater across a salinity gradient in 2 estuarine/coastal marine environments-Chesapeake Bay/Middle Atlantic ...
  • Nitrogen and nitrification in the Houston Ship Channel 

    Ward, G.H.; Miertschin, J.D.; Tuffey, T.J. (E.I. du Pont de Nemours and Company, Inc., 1977)
    The objective of this study was to investigate in detail the transport and interconversion of nitrogen forms in the Houston Ship Channel. Particular attention was given the process of nitrification, the bacterial oxidation ...
  • Nitrogen Budget for Low and High Freshwater Inflows, Nueces Estuary, Texas 

    Brock, David A. (Estuaries, 2001-08)
    Nueces Estuary is a relatively shallow, microtidal estuary which receives inputs from a significant industrial and urban area and from a semi-arid drainage basin. Nitrogen (N) loadings were compiled using FLUX model and ...
  • Nitrogen Cycling and Denitrification in Galveston Bay 

    An, Soonmo, and Samantha B. Joye (Texas Natural Resource Conservation Commission, 1999)
    Denitrification is a microbial process that converts inorganic nitrogen (nitrate or nitrite) to a biologically unavailable form of nitrogen (nitrogen gas) and regarded as a significant sink for the nitrogen loading in ...
  • Nitrogen exchange at the continental margin: a numerical study of the Gulf of Mexico. 

    Walsh, J.J.; Dieterle, D.A.; Meyers, M.B.; Muller-Karger, F.E. (, 1989)
    A two-layered baroclinic circulation model and a 21-layered biochemical model are used to explore the consequences of Loop Current - induced upwelling and terrestrial eutrophication on new production within the Gulf of ...
  • Nitrogen in Aquatic Ecosystems 

    Rabalais, Nancy N. (2002)
    Aquatic ecosystems respond variably to nutrient enrichment and altered nutrient ratios, along a continuum from fresh water through estuarine, coastal, and marine systems. Although phosphorus is considered the limiting ...
  • Nitrogen loads to Galveston Bay 

    Jensen, Paul, Suzy Valentine, M.T. Garrett, and Zaki Ahmad (Galveston Bay National Estuary Program, 1991)
    No abstract available
  • Nitrogen uptake and allocation in the sea grass Amphibolis Antarctica 

    Pedersen, M.F.; Paling, E.I.; Walker, D.I. (, 1997)
    Amphibolis Antarctica is an important sea grass along the south and southwest coast of Australia. The purpose of this work was to study how it acquires the nitrogen which it needs in order to sustain its observed high ...
  • NMFS enforcement agents can use extra pair of eyes. 

    Richard, J. (, 1992)
    Since there are only nine National Marine Fishery Service (NMFS) agents besides the Coast Guard keeping vigil from North Carolina to the far southern Texas coast that borders Mexico, extra assistance is needed in order to ...
  • NMFS Galveston Bay laboratory 

    Sparks D (, 2002 May 1)
    Conference papers index
  • NMFS receives grant from GBNEP to study bycatch 

    Texas Shoreline (, 1992)
    The National Marine Fisheries Service (NMFS) has received funding for one year to conduct bycatch research through a grant from the Galveston Bay National Estuary Program (GBNEP). Starting in January, the grant is to conduct ...
  • NMFS reports study effects of salinity on aquatic species in Texas bays 

    New Waves: The Research Newsletter of the Texas Water Resources Institute (The Texas Water Resources Institute, 1990)
    This short article discusses how the National Marine Fisheries service will study the impacts of salinity on aquatic species in Galveston Bay and Lavaca Bay.
  • No Adverse Impact: Protecting Floodplain Resources 

    Larson, Larry, A. P.E., CFM (Galveston Bay Estuary Program, 2003)
    Communities need to consider approaches for reducing the costs and suffering from flooding which are more effective then current approaches used in national programs. These approaches must move from how to build in the ...
  • No more copper smelter? 

    Tide (, 1992)
    Japanese businessmen decided to withdraw their plans to build a copper smelter on the bay just across from Galveston Island. Galveston Bay fishermen are stunned and delighted.
  • No Place in the sun for the Hired Help 

    Thomas, June M. (Institute for Southern Studies, 1982)
    This article discusses the history and changes in the demographics of Hilton Head Island due to the development of resorts in the area.
  • No. 2 fuel oil effects on spartina alterniflora in a Texas salt marsh. 

    Webb, J.W.; Alexander, S.K. (, 1991)
    The effects of No.2 fuel oil on Spartina alterniflora and the recovery potential of affected plants were investigated in a Galveston Bay, Texas salt marsh. To simulate various oil spill conditions, No.2 fuel oil was applied ...
  • NOAA Gulf of Mexico status and trends program: trace organic contaminant distribution in sediments and oysters 

    Wade, T.L.; Atlas, E.L.; Brooks, J.M.; Kennicutt, M.C., II.; Fox, R.G.; Sericano, J.L.; Garcia-Romero, B.; DeFreitas, D. (Estuarine Research Federation, 1988)
    Polynuclear aromatic hydrocarbons (PAH), chlorinated pesticides, and polychlorinated biphenyls (PCB) concentrations were determined in sediment and oysters to provide information on the current status of the concentrations ...
  • NOAA status and trends mussel watch program for the Gulf of Mexico 

    United States.; Texas A & M University.; National Status and Trends Program (The Geochemical and Environmental Research Group, Texas A&M Research Foudation, 1990)