Journal ArticleDOI
Certain Aspects of Production and Standing Stock of Particulate Matter in the Surface Waters of the Northwest Atlantic Ocean
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TLDR
A good correlation was found between ATP and DNA even though the DNA concentration was too great to be entirely representative of living material, and a trend was noted towards higher specific growth rate with smaller standing crop in southern waters.Abstract:
Samples collected during January and October 1968 from 44° to 19°N in the western North Atlantic were analysed for particulate organic carbon, ATP, DNA, chlorophyll a, and total particulate volume between 1 and 40 μ diameter Although the ratio of chlorophyll to ATP decreased from north to south, the ratio of particulate carbon to ATP did not show any systematic trend A good correlation was found between ATP and DNA even though the DNA concentration was too great to be entirely representative of living material Growth or production of particulate material as measured by the Coulter Counter method was higher than that measured by C-14 method A trend was noted towards higher specific growth rate with smaller standing crop in southern watersread more
Citations
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Temperature and phytoplankton growth in the sea
TL;DR: The variation in growth rate with temperature of unicellular algae suggests that an equation can be written to describe the maximum expected growth rate for temperatures less than 40°C, a logical starting point for modeling phytoplankton growth and photosynthesis in the sea.
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The Size Distribution of Particles in the OCEAN1
TL;DR: In this paper, the frequency distributions of particIe size between sizes of about I and 100 p are given for both surface and deep water of the Atlantic and Pacific Oceans.
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Growth rate influence on the chemical composition of phytoplankton in oceanic waters
TL;DR: Growth rates of natural phytoplankton populations in oceanic waters may be near maximal and hence non-nutrient limited, but the uniformly low biomass and residual nutrient levels in such waters does not preclude the possibility of high growth rates because Zooplankon grazing and nutrient regeneration within the euphotic zone may keep this highly dynamic system in a balanced state.
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Aquatic Primary Productivity and the 14C-CO2 Method: A History of the Productivity Problem
TL;DR: The 14C-CO2 tracer method was introduced by Steemann Nielsen in 1952 and has been widely used in aquatic ecology research as mentioned in this paper, with the results of the 14C tracer being used to measure the carbon budget of plankton assemblages.
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A new method for estimating phytoplankton growth rates and carbon biomass
D. G. Redalje,Edward A. Laws +1 more
TL;DR: Application of the method to the phytoplankton community in an eutrophic estuary in Hawaii indicates that the cells are growing with a doubling time of about 2 d and that about 85% of the particulate carbon consists of phytopsized carbon.
References
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Journal ArticleDOI
The measurement of adenosine triphosphate in the ocean and its ecological significance1
TL;DR: The ATP levels found at various depths in the ocean indicate bacterial populations between 50−2,000 times those found by plating techniques, and the biomass of living material in the water has been estimated using the ATP content of laboratory cultured microorganisms as indicators of endogenous ATP levels.
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Relationship between carbon content, cell volume, and area in phytoplankton
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Determination of microbial biomass in ocean profiles1
TL;DR: In this article, total particulate carbon, nitrogen, adenosine triphosphate (ATP), deoxyribonucleic acid (DNA), and chlorophyll have been measured in detailed profiles to 600 and 1,000 m off the coast of southern California.
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Measurement of deoxyribonucleic acid in the ocean and its ecological significance1
TL;DR: The DNA content of laboratory cultured cells of Skeletonema costatum, DunaZieZZa tertioZecta, and Monoch~ysb Zutheri have been determined relative to the cellular contents of organic carbon, nitrogen, and chlorophyll.
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Growth Rates of Marine Phytoplankton: Correlation with Light Absorption by Cell Chlorophyll a
TL;DR: An equation has been formulated for calculating growth rate which provides a more precise fit of the data than do equations for growth rate based upon cell surface/volume ratios or cell volume, and allows for variations in the efficiency of utilization of light absorbed by chlorophyll a and the changes in chlorine content resulting from light intensity and temperature differences.