Primary Production in the Ocean

Thornton, Daniel C. O.

doi:10.5772/27848

Cited by 3 publications

(1 citation statement)

References 103 publications

(98 reference statements)

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“…The trophic use of carbon and dietary energy produced within (autochthonous) and outside (allochthonous) aquatic ecosystems is still poorly understood. Autotrophic primary production is the basal source of dietary energy and essential biomolecules in most ecosystems (Thornton, 2012). However, autotrophic primary production in terrestrial and aquatic environments is affected substantially by the availability of light and CO 2 .…”

Section: Introductionmentioning

confidence: 99%

The second life of terrestrial and plastic carbon as nutritionally valuable food for aquatic consumers

et al. 2023

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Primary production is the basis for energy and biomolecule flow in food webs. Nutritional importance of terrestrial and plastic carbon via mixotrophic algae to upper trophic level is poorly studied. We explored this question by analysing the contribution of osmo‐ and phagomixotrophic species in boreal lakes and used 13C‐labelled materials and compound‐specific isotopes to determine biochemical fate of carbon backbone of leaves, lignin–hemicellulose and polystyrene at four‐trophic level experiment. Microbes prepared similar amounts of amino acids from leaves and lignin, but four times more membrane lipids from lignin than leaves, and much less from polystyrene. Mixotrophic algae (Cryptomonas sp.) upgraded simple fatty acids to essential omega‐3 and omega‐6 polyunsaturated fatty acids. Labelled amino and fatty acids became integral parts of cell membranes of zooplankton (Daphnia magna) and fish (Danio rerio). These results show that terrestrial and plastic carbon can provide backbones for essential biomolecules of mixotrophic algae and consumers at higher trophic levels.

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Section: Introductionmentioning

confidence: 99%

The second life of terrestrial and plastic carbon as nutritionally valuable food for aquatic consumers

et al. 2023

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Gross and Net Production in Different Environments

Dokulil¹

2019

Encyclopedia of Ecology

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CO<sub>2</sub> Air-Water Exchanges during Seasonal and Glacial Cycles

Muller-Feuga

2023

JACEN

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Based on the photosynthesis-respiration reversible reaction and the available statistics, we attempted to quantify the planetary seasonal exchanges of CO 2 between air and water from 1970 and compared them to the glacial ACC cycles as reported from ice cores archives. In 2020, the overall continental absorption (AW) was 8.0 giga tonnes of carbon per year (GtC/y). Emissions into the atmosphere (EW) resulting from mineral degradation by respiration and combustion of biomass and fossil hydrocarbons were 14.7 GtC/y, an increase of 2.4% per year since 1970. The continental surplus balance (−AW+EW) of 6.7 GtC/y was shared between the atmosphere, which received 5.1 GtC/y (GATM), and the ocean which absorbed 1.6 GtC/y. This ocean contribution (OC) corresponded to 17% of the 9.2 GtC/y emissions by combustion of fossil hydrocarbons (EFOS). Analysis of the ACC oscillations during 2020 in the northern hemisphere showed that the ocean absorbed 11.1 GtC during the warm season and outgassed 9.5 GtC during the cold season. Assuming proportionality to world population, the ACC, 414 parts per million (ppm) in 2021, would reach 584 ppm in 2080, still growing at a rate of 0.6% per year. The gain of atmospheric CO 2 (GATM) and its absorption by the ocean (OC) were expected to peak at 7.0 and 2.2 GtC/y, respectively, in 2080. This increase in the availability of atmospheric CO 2 resulted in improved yields of agriculture which more than compensated for the reduction by half of food-producing areas per capita from 1970.

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Primary Production in the Ocean

Cited by 3 publications

References 103 publications

The second life of terrestrial and plastic carbon as nutritionally valuable food for aquatic consumers

The second life of terrestrial and plastic carbon as nutritionally valuable food for aquatic consumers

Gross and Net Production in Different Environments

CO<sub>2</sub> Air-Water Exchanges during Seasonal and Glacial Cycles

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Primary Production in the Ocean

Cited by 3 publications

References 103 publications

The second life of terrestrial and plastic carbon as nutritionally valuable food for aquatic consumers

The second life of terrestrial and plastic carbon as nutritionally valuable food for aquatic consumers

Gross and Net Production in Different Environments

CO&lt;sub&gt;2&lt;/sub&gt; Air-Water Exchanges during Seasonal and Glacial Cycles

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CO<sub>2</sub> Air-Water Exchanges during Seasonal and Glacial Cycles