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Taxonomy of diatoms information


Light microscopy of several species of living freshwater diatoms

Diatoms belong to a large group called the heterokonts, which include both autotrophs such as golden algae and kelp; and heterotrophs such as water moulds. The classification of heterokonts is still unsettled: they may be designated a division, phylum, kingdom, or something intermediate to those. Consequently, diatoms are ranked anywhere from a class, usually called Diatomophyceae or Bacillariophyceae, to a division (=phylum), usually called Bacillariophyta, with corresponding changes in the ranks of their subgroups.

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Taxonomy of diatoms

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classes, maintaining the centric diatoms as a single class Coscinodiscophyceae, but splitting the former pennate diatoms into 2 separate classes, Fragilariophyceae...

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Diatom

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related to Diatoms. Wikimedia Commons has media related to Diatoms. Diatom EST database, École Normale Supérieure Plankton*Net, taxonomic database including...

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Milky seas effect

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ocean in which large areas of seawater (up to 6,000 sq mi or 16,000 km2) appear to glow translucently (in varying shades of blue). Such occurrences glow...

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Greta Fryxell

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work on the biology and taxonomy of diatoms. In 1996, she was elected a fellow of the American Association for the Advancement of Science. Fryxell graduated...

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Holoplankton

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planktic organisms that spend part of their life cycle in the benthic zone. Examples of holoplankton include some diatoms, radiolarians, some dinoflagellates...

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Radiolaria

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oceanic conditions. Like diatoms, radiolarians come in many shapes Also like diatoms, radiolarian shells are usually made of silicate However acantharian...

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Coscinodiscophyceae

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some taxonomy schemes, the centric diatoms are known instead as order Coscinodiscophyceae, and in some schemes as order Biddulphiales. However, diatom taxonomy...

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Echinoderm

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23 June 2022. Sartori, D.; Gaion, A. (2015). "Toxicity of polyunsaturated aldehydes of diatoms to Indo-Pacific bioindicator organism Echinometra mathaei"...

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Phytoplankton

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algae to armour-plated coccolithophores. Important groups of phytoplankton include the diatoms, cyanobacteria and dinoflagellates, although many other groups...

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Fragilaria

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Fragilaria is a genus of freshwater and saltwater diatoms. It is usually a colonial diatom, forming filaments of cells mechanically joined by protrusions...

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Plankton

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only the root of the word in the derivation. Some marine diatoms — a key phytoplankton group The amphipod Hyperia macrocephala – part of the zooplankton...

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Microalgae

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forces. Microalgae, capable of performing photosynthesis, are important for life on earth; they produce approximately half of the atmospheric oxygen and...

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Eutrophication

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silica rich phytoplankton species like diatoms compared to other species. This process leads to the development of nuisance algal blooms in areas such as...

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Marine protists

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depths. Diatoms are one of the most common types of phytoplankton. Their protective shells (frustles) are made of silicon. Diatom shapes Diatoms Physically...

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Nanophytoplankton

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autotrophic part of nanoplankton. Like other phytoplankton, nanophytoplankton are microscopic organisms that obtain energy through the process of photosynthesis...

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Cyanobacteria

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with diatoms such as Hemiaulus, Rhizosolenia and Chaetoceros. Marine cyanobacteria include the smallest known photosynthetic organisms. The smallest of all...

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Marine microorganisms

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California Diatom shapes Diatoms form a (disputed) phylum containing about 100,000 recognised species of mainly unicellular algae. Diatoms generate about...

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Taxonomy of Protista

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Society of Protistologists to revise the taxonomy of protists in a manner that reflects their phylogeny and evolution, striving away from the use of historical...

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Iron fertilization

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mesoscale ocean eddy in the South Atlantic resulted in a bloom of diatoms, a large portion of which died and sank to the ocean floor when fertilization ended...

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Zooplankton

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oceanic conditions. Like diatoms, radiolarians come in many shapes Also like diatoms, radiolarian shells are usually made of silicate However acantharian...

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Pleurosigma

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Pleurosigma is a genus of widely distributed diatoms found abundantly in brackish to marine waters. It is a group of primarily pelagic or benthic species...

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Pennales

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vegetative cells are produced). In some taxonomic schemes, the pennate diatoms are divided into two groups: pennate diatoms without a raphe (a seam or ridge)...

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Picoplankton

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categorized on the basis of physiological, taxonomic, or dimensional characteristics. Subsequently, a generic classification of a plankton includes: Bacterioplankton...

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Critical depth

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precisely matched by losses of phytoplankton biomass within the depth interval. This concept is useful for understanding the initiation of phytoplankton blooms...

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Meroplankton

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exist meroplanktonic diatoms; these have a seasonal resting phase below the photic zone and can be found commonly amongst the benthos of lakes and coastal...

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CLAW hypothesis

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climate forcing, and that these responses act to stabilise the temperature of the Earth's atmosphere. The CLAW hypothesis was originally proposed by Robert...

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Skeletonema

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Skeletonema is a genus of diatoms in the family Skeletonemataceae. It is the type genus of its family. The genus Skeletonema was established by R. K....

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Harmful algal bloom

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main types of phytoplankton which can form into harmful algal blooms: cyanobacteria, dinoflagellates and diatoms. All three are made up of microscopic...

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Coccolithophore

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its diatom predominance. The overlap of two major phytoplankton groups, coccolithophores and diatoms, in the dynamic frontal systems characteristic of this...

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