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2 edition of On the analysis of dark fixation in primary production computations found in the catalog.

On the analysis of dark fixation in primary production computations

G. HГёpner Petersen

On the analysis of dark fixation in primary production computations

by G. HГёpner Petersen

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  • 32 Currently reading

Published by s.n. in [Denmark .
Written in English

    Subjects:
  • Plankton -- Greenland

  • Edition Notes

    Reprinted from: Ophelia, vol. 17, no. 1 (July 1978).

    StatementG. Høpner Petersen.
    SeriesPublications from the Danish Arctic Station on Disko Island, Greenland -- no. 74
    The Physical Object
    Paginationp. 326-330 :
    Number of Pages330
    ID Numbers
    Open LibraryOL17371010M

    Mary Malone plays the snake by introducing Will and Lyra to the idea that sex is not a shameful act. Mary began her adult life as a nun.. She dedicated her life to God by refusing physical pleasures (primarily sex) and ignoring her body’s urges.   Dark matter is one of the great unsolved mysteries of modern astronomy. We've reached the point where we know most matter in the cosmos is made of matter that interacts weakly with light if .

    Applying the structure of the Hero's Journey is a little funky for this film, since The Dark Knight is the second film in a trilogy that essentially tells one big story. We get Act II without Acts I or III, which leaves a lot of middle steps without any of the first or last ones in the story. Assessing the Themes of The Dark Knight Posted on Sunday, July 20th, by David Chen I hauled my ass out of bed at AM ton Saturday morning and saw The Dark .

    Anoxygenic Photosynthetic Bacteria is a comprehensive volume describing all aspects of non-oxygen-evolving photosynthetic bacteria. The 62 chapters are organized into themes of: Taxonomy, physiology and ecology; Molecular structure of pigments and cofactors; Membrane and cell wall structure: Antenna structure and function; Reaction center structure and electron/proton pathways; Cyclic electron. P(I) = primary production at irradiance I, corrected for dark fixation (P(i)-P(d» P,b "= theoretical maximum production without photoinhibition a = a"I!Psb", and a"is the initial slope the light-dependent rise in production.


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On the analysis of dark fixation in primary production computations by G. HГёpner Petersen Download PDF EPUB FB2

Primary production results are biased by the different uses of dark fixation in computations. Dark fixation is not related to light fixation but to other environmental para-meters. The necessity of independent analysis of dark fixation is stressed, and the value of existing primary production results for studies on food web discussed Year: Cited by: Determinations of primary production and related factors beneath the Arctic sea ice have been few.

A thorough treatment, however, of all available data shall not be attempted here. The main topic concerns conditions of primary production in the Polar Basin and adjacent ice-laden areas, with additional information from more southerly waters Cited by:   Autocorrelation coefficients were computed for the analysis of variability of dark 14 CO 2 fixation rates within a year.

It was suggested that dark 14 CO 2 incorporation might be a periodic phenomenon depending mainly on the productive capacity of the phytoplankton by: 8. regression analysis) and changes in primary production trends on various spatial and temporal scales (correlation analysis).

To estimate the rate and direction of change in annual primary pr oduction. Moreover, since the process of dark carbon fixation is at least partially under the influence of enzymes, the dark fixation can be expected to be influenced by temperature.

Legendre et al. () found that 14 C incorporation in darkness is a function of temperature: higher the temperature to which algae are exposed during dark incubation, higher the dark by: Playing in the Dark: Whiteness and the Literary Imagination is an adaptation of three lectures that Nobel Prize-winning author Toni Morrison delivered at the Massey Lectures at Harvard University in She turned the three-part series into a page book, published in by Harvard University Press.

9 PRIMARY PRODUCTION METHODS area of first computation of global oceanic primxy production using the remote- sensing approach appeared in the literature in (Figure 1). Other, similar computi~ions have. Abstract. Here we report on the seasonal productivity cycle at a fixed station in the Puyuhuapi Channel (44°S, 73°W), Chilean Patagonia.

The analysis of in situ water column data and longer-term records of satellite-derived surface ocean color (Chl-a) highlighted two contrasting seasons.A more productive period occurred between August and April, where depth-integrated gross primary.

Oxygen production The oldest and most direct measurement of phytoplankton primary production involves the measurement of dissolved oxygen in light and dark bottles. The dark bottle provides the rate of respiratory consumption of organic substrates. Oxygen may be measured using the classic Winkler titration method, or an oxygen electrode (this.

Primary production can be estimated from chloro-phyll (from satellite color or in situ Suorescence) if carbon uptake per unit of chlorophyll is known. Therefore, ‘global’ estimates of primary production depend on direct measurements by incubation.

The technical objectives are to obtain a representative. Primary production in marine ecosystems occurs in the presence of nutrients that are mainly brought from below the euphotic zone by upwelling and mixing. Rivers and atmospheric deposition bring additional nutrients, the former being important in the coastal areas and the latter being more important in the open ocean areas.

The most offensive thing about the Church in His Dark Materials is its relentless quest to ensure ignorance. Beginning with Adam and Eve and the forbidden tree of knowledge, God and the Church have sought to prevent people from becoming freethinking adults by trying to restrict knowledge. Integrated primary production varied by a factor of 4 with 91% of this variability due to variations in primary production at the deep chlorophyll maximum (71%) and the maximum photosynthetic rate (P m B) at the surface waters (20%).

The present study assesses the contribution of dark carbon fixation to the primary production in the oxic/anoxic interface of a shallow estuarine environment that develops a salt-water wedge with. Single-cell analysis of N 2-fixation that recently fixed N 2 by Aphanizomenon is released as NH 4 + to the surrounding water and consequently supports the primary production The.

Playing in the Dark: Whiteness and the Literary Imagination Summary & Study Guide Toni Morrison This Study Guide consists of approximately 37 pages of chapter summaries, quotes, character analysis, themes, and more - everything you need to sharpen your knowledge of Playing in the Dark.

system levels. In the present investigation the light dark oxygen method was followed in order to assess the of primary productivity of Bay of Bengal at Chandravaga, Konark, Odisha, Seasonally, the maximum Gross Primary Production and Net Primary Production were recorded in summer due to clear.

Shiozaki T, Bombar D, Riemann L, Sato M, Hashihama F, Kodama T, Tanita I, Takeda S, Saito H, Hamasaki K, Furuya K. Linkage between dinitrogen fixation and primary production in the oligotrophic South Pacific Ocean. Global Biogeochemical Cycles, Dark Data explores the many ways in which we can be blind to missing data and how that can lead us to conclusions and actions that are mistaken, dangerous, or even disastrous.

Examining a wealth of real-life examples, from the Challenger shuttle explosion to complex financial frauds, Hand gives us a practical taxonomy of the types of dark data. The cross-correlation analysis showed a lag-time of 2 months between chlorophyll a and TEP concentrations (r =p primary production (r =p.

P(I) = primary production at irradiance I, corrected for dark fixation (P(i)-P(d» P.0"= theoretical maximum production wjthout photoinhibition a = cx"IIPW. and cx"is the initial slope the light-dependent rise in production.Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that can later be released to fuel the organisms' activities.

This chemical energy is stored in carbohydrate molecules, such as sugars, which are synthesized from carbon dioxide and water – hence the name photosynthesis, from the Greek phōs (), "light", and sunthesis (σύνθεσις.The following is a partial list of publications which have used data from the Ocean Productivity site Deep Sea Research Part I: Oceanographic Research Papers, MH Pinkerton, M .