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Brief Summary
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Fucales is the largest order of Phaeophyceae (brown algae), and the sistergroup to the remainder of the brown algaes. Fucales is a morphologically diverse group (Rousseau and DeReviers 1999).

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Comprehensive Description
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The algae in the Fucales are characterized by:

Their parenchymal growth (i.e. growing in three dimensions rather than as a two-dimensional filiment), outward from an apical area at each apex.

Their reproductive organs are always contained in conceptacles, usually on the tips of the thallus (body of the aglae).

Their life cycle is almost completely diploid, with only the gametes being haploid.

Their eggs are large and non-motile, and are fertilized by small motile sperm (oogamy).

(Rousseau and DeReviers 1999)

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Distribution
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The Fucales are found worldwide, but are represented by quite different taxa in different parts of the globe. In Northern waters Fucus is the the most common genus, whereas in tropical waters Sargassum predominates, Cystophora is common in Australia and Durvillea widespread in the sub-antarctic, especially southern New Zealand and Chile.

(Lee 2008)

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Habitat
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The Fucales are found exclusively in marine habitats, in the intertidal and up into the spray zone. They are commonly found on rocky substrates. Some species grow in salt marshes and other brackish environments.

(Lee, 2008; Graham et al 2009)

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Life Expectancy
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Members of the order Fucales generally live for 2-3 years. One genus, Ascophyllum, can live up to 15 years, depending on where it lives in the littoral zone: those living deeper tend to live longer than those at the top.

(Lee 2008)

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Fucales
provided by wikipedia EN

The Fucales (fucoids) are an order in the brown algae (class Phaeophyceae). The list of families in the Fucales, as well as additional taxonomic information on algae, is publicly accessible at Algaebase. [1][1]

The class Phaeophyceae is included within the division Heterokontophyta.[2] This name comes from the Greek word phaios meaning "brown" and phyton meaning plant.[3] They include some of the largest plants in the sea, but some are small and fine in structure.

Classification

The Fucales include some of the more common littoral seaweeds and the members of the order have the typical seaweed construction: a holdfast, stipe, and lamina. The lamina is often much branched and may include gas-filled bladders. Growth is by division of the apical cells.

They are oogamous - fusion between the small male gamete and the large female gamete.

References

  1. ^ Guiry, M.D. and Guiry, G.M. 2006. AlgaeBase version 4.2. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 7 December 2006
  2. ^ Hardy, G. and Guiry, M.D. 2006. A Check-list and Atlas of the Seaweeds of Britain and Ireland. 2006. The British Phycologcal Society. .mw-parser-output cite.citation{font-style:inherit}.mw-parser-output q{quotes:"""""'"'"}.mw-parser-output code.cs1-code{color:inherit;background:inherit;border:inherit;padding:inherit}.mw-parser-output .cs1-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Lock-green.svg/9px-Lock-green.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-lock-limited a,.mw-parser-output .cs1-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lock-gray-alt-2.svg/9px-Lock-gray-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Lock-red-alt-2.svg/9px-Lock-red-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration{color:#555}.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration span{border-bottom:1px dotted;cursor:help}.mw-parser-output .cs1-hidden-error{display:none;font-size:100%}.mw-parser-output .cs1-visible-error{font-size:100%}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-format{font-size:95%}.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-right{padding-right:0.2em}ISBN 3-906166-35-X
  3. ^ Huisman, J.M. 2000. Marine Plants of Australia. University of Western Australia Press, Australia. ISBN 1-876268-33-6

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Fucales: Brief Summary
provided by wikipedia EN

The Fucales (fucoids) are an order in the brown algae (class Phaeophyceae). The list of families in the Fucales, as well as additional taxonomic information on algae, is publicly accessible at Algaebase. [1]

The class Phaeophyceae is included within the division Heterokontophyta. This name comes from the Greek word phaios meaning "brown" and phyton meaning plant. They include some of the largest plants in the sea, but some are small and fine in structure.

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