Portal:Algae

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Introduction

A variety of algae growing on the sea bed in shallow waters
A variety of microscopic unicellular and colonial freshwater algae

stoneworts. Algae that are carried by water are plankton, specifically phytoplankton
.

Algae constitute a polyphyletic group since they do not include a common ancestor, and although their

red alga. Algae exhibit a wide range of reproductive strategies, from simple asexual cell division to complex forms of sexual reproduction
.

Algae lack the various structures that characterize

Vindhya basin have been dated back to 1.6 to 1.7 billion years ago. (Full article...
)

Selected general article

Lake Erie in October 2011, during an intense cyanobacteria bloom

Microcystins—or cyanoginosins—are a class of toxins produced by certain freshwater cyanobacteria, commonly known as blue-green algae. Over 250 different microcystins have been discovered so far, of which microcystin-LR is the most common. Chemically they are cyclic heptapeptides produced through nonribosomal peptide synthases.

Cyanobacteria can produce microcystins in large quantities during algal blooms which then pose a major threat to drinking and irrigation water supplies, and the environment at large. (Full article...)

Selected algae type

Macrocystis pyrifera
)

Laminariales, may reach 60 m (200 ft) in length and forms prominent underwater kelp forests that contain a high level of biodiversity. Another example is Sargassum, which creates unique floating mats of seaweed in the tropical waters of the Sargasso Sea
that serve as the habitats for many species. Some members of the class, such as kelps, are used by humans as food.

Between 1,500 and 2,000

carbon fixation. (Full article...
)

Selected images

  • Image 1Stigeoclonium, a chlorophyte green alga genus
    Stigeoclonium, a chlorophyte green alga genus
  • Image 2Zygnema. 10× objective, 15× eyepiece; numbered ticks are 122 µM apart.
    Zygnema. 10× objective, 15× eyepiece; numbered ticks are 122 µM apart.
  • Image 3Algae at Yellowstone Park
    Algae at Yellowstone Park
  • Image 4Micrasterias radiata / from Shishitsuka-Pond, Tsuchiura, Ibaraki Pref., Japan / Microscope: Leica DMRD (DIC)
    Micrasterias radiata / from Shishitsuka-Pond, Tsuchiura, Ibaraki Pref., Japan / Microscope: Leica DMRD (DIC)
  • Image 5Aerial view of algae farm ponds for production of beta-carotin, Whyalla, South Australia.
    Aerial view of algae farm ponds for production of beta-carotin, Whyalla, South Australia.
  • Image 6Eucheuma farming (underwater), Philippines
    Eucheuma farming (underwater), Philippines

Get involved

WikiProject Algae is dedicated to focusing the efforts of Wikipedia contributors on algae-related articles. Find articles to work on on its taxon notes page.

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