Search Results - "HARRISON, W. G"

Chlorophyll, bacteria and picophytoplankton in ecological provinces of the North Atlantic by Li, W.K.W, Harrison, W.G

“…A comparative ecology of chlorophyll, bacteria and picophytoplankton is presented for seven ecological provinces in the North Atlantic. Depth-integrated…”
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The Kinetics of Nitrogen Utilization in the Oceanic Mixed Layer: Nitrate and Ammonium Interactions at Nanomolar Concentrations by Harrison, W. G., Harris, L. R., Irwin, B. D.

“…The concentration-dependent uptake of nitrate (NO3) and its inhibition by ammonium (NH4) were surveyed in surface waters of the North Atlantic Ocean. Low-level…”
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Comparing Predator‐Prey Models to Luckinbill's Experiment with Didinium and Paramecium by Harrison, Gary W.

“…When Leo Luckinbill (1973) grew Paramecium aurelia together with its predator Didinium nasutum in 6 mL of standard cerophyl medium, the Didinium consumed all…”
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Nutrients, primary production and microbial heterotrophy in the southeastern Chukchi Sea: Arctic summer nutrient depletion and heterotrophy by Cota, G. F., Pomeroy, L. R., Harrison, W. G., Jones, E. P., Peters, F., Sheldon, W. M., Weingartner, T. R.

“…In August 1993, we measured photosynthesis, chlorophyll a, bacterial secondary production, microbial community respiratory rate, bacterial abundance, dissolved…”
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Experimental Evidence on Alternative Environmental Valuation Methods by Harrison, Glenn W

“…Experimental methods are central to assessments of environmental valuation approaches that are operationally meaningful. Existing lab experiments focus…”
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Basin-scale variability in plankton biomass and community metabolism in the sub-tropical North Atlantic Ocean by Harrison, W.G., Arı́stegui, J., Head, E.J.H., Li, W.K.W., Longhurst, A.R., Sameoto, D.D.

“…Three trans-Atlantic oceanographic surveys (Nova Scotia to Canary Islands) were carried out during fall 1992 and spring 1993 to describe the large-scale…”
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Are the spring and fall blooms on the Scotian Shelf related to short-term physical events? by Greenan, B.J.W, Petrie, B.D, Harrison, W.G, Oakey, N.S

“…Physical, chemical and biological data from the Scotian Shelf indicate that short-term physical events affect the dynamics of spring and fall blooms. This is…”
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Geographic variations in the nitrogen isotope composition of surface particulate nitrogen and new production across the North Atlantic Ocean by Waser, Nathalie A.D., Harrison, William G., Head, Erica J.H., Nielsen, Bente, Lutz, Vivian A., E. Calvert, Stephen

“…Natural 15 N/ 14 N ( δ 15N) was determined in suspended particulate matter (SPM) and plankton tow samples (20- and 233-μm mesh nets) during extensive surveys…”
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Plankton dynamics and carbon flux in an area of upwelling off the coast of Morocco by Head, E.J.H., Harrison, W.G., Irwin, B.I., Horne, E.P.W., Li, W.K.W.

“…A carbon flux study was carried out off the coast of Morocco, at 31°N, in a region characterized by the presence of a persistent cyclonic eddy. Two short-term…”
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Photosynthesis-irradiance relationships in polar and temperate phytoplankton populations by Harrison, W.G, Platt, T

“…Analyses of some 700 photosynthesis-irradiance (P-I) experiments made on natural marine phytoplankton assemblages in over six years of field work are…”
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Autotrophic picoplankton in the Tropical ocean [Pacific Ocean] by Li, W. K. W., D. V. Subba Rao, Harrison, W. G., Smith, J. C., Cullen, J. J., Irwin, B., Platt, T.

“…In phytoplankton of the eastern tropical Pacific Ocean from 25 to 90 percent of the biomass (measured as chlorophyll a) and 20 to 80 percent of the inorganic…”
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Nutrient control of phytoplankton photosynthesis in the western North Atlantic by Platt, Trevor, Sathyendranath, Shubha, Ulloa, Osvaldo, Harrison, William G., Hoepffner, Nicolas, Goes, Joaquim

“…Results from several years of oceanographic cruises are reported which show that the parameters of the photosynthesis-light curve of the flora of the North…”
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Balancing acute and long-term care: the mathematics of throughput in departments of geriatric medicine by Harrison, G W, Millard, P H

“…The empirical distribution of length of stay of patients in departments of geriatric medicine is fit extremely well by a sum of two exponentials. Most of the…”
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Estimation of new production in the ocean by compound remote sensing by Sathyendranath, Shubha, Platt, Trevor, Horne, Edward P. W., Harrison, William G., Outerbridge, Richard, Ulloa, Osvaldo, Hoepffner, Nicolas

“…Compound remote sensing, a technique for estimating oceanic new production using remotely sensed data on ocean color and temperature, is discussed. This…”
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Effects of silicate limitation on production of domoic acid, a neurotoxin, by the diatom Pseudo-nitzschia multiseries. II. Continuous culture studies by Pan, Youlian, Rao, D. V. Subba, Mann, K. H., Li, W. K. W., Harrison, W. G.

“…Production of domoic acid (DA) by Pseudo-nitzschia multiseries (Hasle) was studied using continuous cultures with growth rates ranging from 0.06 to 0.67 d−1…”
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The Onset and Evolution of a Spring Bloom on the Scotian Shelf by Greenan, B. J. W., Petrie, B. D., Harrison, W. G., Strain, P. M.

“…The spring bloom on the Scotian Shelf is examined using a mooring array deployed from 18 March 2002 to 18 April 2002 to provide physical, chemical, and…”
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Nitrogen utilization in chlorophyll and primary productivity maximum layers: an analysis based on the f-ratio by Harrison, W. Glen

“…An analysis was made of the relative importance of 'new' (NO₃ uptake) and 'regenerated' (NH₄ uptake) production in the chlorophyll maximum (CHLmax) and primary…”
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Biogenic fluxes of carbon and oxygen in the ocean by Platt, Trevor, Harrison, William G

“…Rates of oxygen utilization (OUR) at depth in the ocean have been interpreted as showing that rates of carbon fixation by phytoplankton, as estimated by…”
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New production in the central equatorial Pacific by Peña, M. Angélica, Harrison, W. Glen, Lewis, Marlon R.

“…Uptake rates of nitrogen (15NO3− and 15NH4+) and primary productivity were measured along a transect across the equatorial Pacific region at ca 135° W from 15°…”
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Synoptic Study of Variations in the Fluorescence-Based Maximum Quantum Efficiency of Photosynthesis Across the North Atlantic Ocean by Olaizola, Miguel, Geider, Richard J., Harrison, William G., Graziano, Lisa M., Ferrari, Giovanni M., Schlittenhardt, Peter M.

“…Using ship-based phytoplakton fluorescence techniques on a 9-d transect of the North Atlantic Ocean, we have produced the first synoptic view of variations in…”
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