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  2. Marine viruses - Wikipedia

    en.wikipedia.org/wiki/Marine_viruses

    [14] [15] Marine viruses, although microscopic and essentially unnoticed by scientists until recently, are the most abundant and diverse biological entities in the ocean. Viruses have an estimated abundance of 10 30 in the ocean, or between 10 6 and 10 11 viruses per millilitre. [4]

  3. Marine prokaryotes - Wikipedia

    en.wikipedia.org/wiki/Marine_prokaryotes

    Heterotrophic bacterioplankton are main consumers of dissolved organic matter (DOM) in pelagic marine food webs, including the sunlit upper layers of the ocean. Their sensitivity to ultraviolet radiation (UVR), together with some recently discovered mechanisms bacteria have evolved to benefit from photosynthetically available radiation (PAR ...

  4. Marine microorganisms - Wikipedia

    en.wikipedia.org/wiki/Marine_microorganisms

    Microorganisms make up about 70% of the marine biomass. [4] A microorganism, or microbe, is a microscopic organism too small to be recognised adequately with the naked eye. In practice, that includes organisms smaller than about 0.1 mm. [12]: 13

  5. Hydrothermal vent microbial communities - Wikipedia

    en.wikipedia.org/wiki/Hydrothermal_vent...

    Organic matter produced by autotrophic bacteria is then used to support the upper trophic levels. The hydrothermal vent fluid and the surrounding ocean water is rich in elements such as iron , manganese and various species of sulfur including sulfide , sulfite , sulfate , elemental sulfur from which they can derive energy or nutrients. [ 9 ]

  6. Marine life - Wikipedia

    en.wikipedia.org/wiki/Marine_life

    Marine life, sea life or ocean life is the collective ecological communities that encompass all aquatic animals, plants, algae, fungi, protists, single-celled microorganisms and associated viruses living in the saline water of marine habitats, either the sea water of marginal seas and oceans, or the brackish water of coastal wetlands, lagoons ...

  7. Cyanophage - Wikipedia

    en.wikipedia.org/wiki/Cyanophage

    [38] [4] They can withstand temperatures ranging from 12 to 30 °C and salinities of 18-70 ppt. [4] The DNA of cyanophages is susceptible to UV degradation but can be restored in host cells through a process called "photoreactivation". [39] The viruses cannot move independently and must rely on currents, mixing, and host cells to transport them.

  8. DNA virus - Wikipedia

    en.wikipedia.org/wiki/DNA_virus

    Orthopoxvirus particles. A DNA virus is a virus that has a genome made of deoxyribonucleic acid (DNA) that is replicated by a DNA polymerase.They can be divided between those that have two strands of DNA in their genome, called double-stranded DNA (dsDNA) viruses, and those that have one strand of DNA in their genome, called single-stranded DNA (ssDNA) viruses. dsDNA viruses primarily belong ...

  9. Marine protists - Wikipedia

    en.wikipedia.org/wiki/Marine_protists

    Protozoans are protists which feed on organic matter such as other microorganisms or organic tissues and debris. [ 87 ] [ 88 ] Historically, the protozoa were regarded as "one-celled animals", because they often possess animal -like behaviours, such as motility and predation , and lack a cell wall , as found in plants and many algae .