enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Oceanic carbon cycle - Wikipedia

    en.wikipedia.org/wiki/Oceanic_carbon_cycle

    Marine fish also excrete calcium carbonate during osmoregulation. [15] Some of the inorganic carbon species in the ocean, such as bicarbonate and carbonate, are major contributors to alkalinity, a natural ocean buffer that prevents drastic changes in acidity (or pH). The marine carbon cycle also affects the reaction and dissolution rates of ...

  3. Marine biogeochemical cycles - Wikipedia

    en.wikipedia.org/wiki/Marine_biogeochemical_cycles

    The Oceanic carbon cycle is a central process to the global carbon cycle and contains both inorganic carbon (carbon not associated with a living thing, such as carbon dioxide) and organic carbon (carbon that is, or has been, incorporated into a living thing). Part of the marine carbon cycle transforms carbon between non-living and living matter.

  4. Marine biogenic calcification - Wikipedia

    en.wikipedia.org/wiki/Marine_biogenic_calcification

    The surface ocean engages in air-sea interactions and absorbs carbon dioxide (CO 2) from the atmosphere, making the ocean the Earth's largest sink for atmospheric CO 2. Carbon dioxide dissolves in and reacts with seawater to form carbonic acid. Subsequent reactions then produce carbonate (CO 3 2−), bicarbonate (HCO 3 −), and hydrogen (H ...

  5. Biological pump - Wikipedia

    en.wikipedia.org/wiki/Biological_pump

    In general, dissolved organic carbon is introduced into the ocean environment from bacterial lysis, the leakage or exudation of fixed carbon from phytoplankton (e.g., mucilaginous exopolymer from diatoms), sudden cell senescence, sloppy feeding by zooplankton, the excretion of waste products by aquatic animals, or the breakdown or dissolution ...

  6. Marine protists - Wikipedia

    en.wikipedia.org/wiki/Marine_protists

    Dead diatoms drift to the ocean floor where, over millions of years, the remains of their frustules can build up as much as half a mile deep. [64] Diatoms have relatively high sinking speeds compared with other phytoplankton groups, and they account for about 40% of particulate carbon exported to ocean depths. [60] [65] [62]

  7. Carbon cycle - Wikipedia

    en.wikipedia.org/wiki/Carbon_cycle

    Ocean mixed layer carbon, c m, is the only explicitly modelled ocean stock of carbon; though to estimate carbon cycle feedbacks the total ocean carbon is also calculated. [107] Current trends in climate change lead to higher ocean temperatures and acidity, thus modifying marine ecosystems. [108]

  8. Marine primary production - Wikipedia

    en.wikipedia.org/wiki/Marine_primary_production

    Marine plants can be found in intertidal zones and shallow waters, such as seagrasses like eelgrass and turtle grass, Thalassia. These plants have adapted to the high salinity of the ocean environment. Light is only able to penetrate the top 200 metres (660 ft) so this is the only part of the sea where plants can grow. [77]

  9. Marine prokaryotes - Wikipedia

    en.wikipedia.org/wiki/Marine_prokaryotes

    Prokaryotes play important roles in ecosystems as decomposers recycling nutrients. Some prokaryotes are pathogenic, causing disease and even death in plants and animals. [5] Marine prokaryotes are responsible for significant levels of the photosynthesis that occurs in the ocean, as well as significant cycling of carbon and other nutrients. [6]