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Ocean chlorophyll concentration as a proxy for marine primary production. Green indicates where there are a lot of phytoplankton, while blue indicates where there are few phytoplankton. – NASA Earth Observatory 2019. [1] Marine primary production is the chemical synthesis in the ocean of organic compounds from atmospheric or dissolved carbon ...
The pelagic food web, showing the central involvement of marine microorganisms in how the ocean imports nutrients from and then exports them back to the atmosphere and ocean floor. A marine food web is a food web of marine life. At the base of the ocean food web are single-celled algae and other plant-like organisms known as phytoplankton.
Dissolved salt does not evaporate back into the atmosphere like water, but it does form sea salt aerosols in sea spray. Many physical processes over ocean surface generate sea salt aerosols. One common cause is the bursting of air bubbles , which are entrained by the wind stress during the whitecap formation.
The transformity of energy becomes degraded, dispersed, and diminished from higher quality to lesser quantity as the energy within a food chain flows from one trophic species into another. Abbreviations: I=input, A=assimilation, R=respiration, NU=not utilized, P=production, B=biomass. [32] Food webs depict energy flow via trophic linkages.
The pelagic food web, showing the central involvement of marine microorganisms in how the ocean imports carbon and then exports it back to the atmosphere and ocean floor The biological pump (or ocean carbon biological pump or marine biological carbon pump ) is the ocean's biologically driven sequestration of carbon from the atmosphere and land ...
The first type of organism to take advantage of this deep-sea energy source is bacteria. [3] Aggregating into bacterial mats at cold seeps, these bacteria metabolize methane and hydrogen sulfide (another gas that emerges from seeps) for energy. [3] This process of obtaining energy from chemicals is known as chemosynthesis. [3]
A food pyramid and a corresponding food web, demonstrating some of the simpler patterns in a food web. A graphic representation of energy transfer between trophic layers in an ecosystem. Energy flow is the flow of energy through living things within an ecosystem . [ 1 ]
They produce 25–45% of the total primary production of organic material in the oceans, [58] [59] [60] owing to their prevalence in open-ocean regions when total phytoplankton biomass is maximal. [61] [62] Diatoms are enclosed in protective silica (glass) shells called frustules. They are classified by the shape of these glass cages in which ...