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Brief Summary

provided by EOL staff

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 ( Asturian )

provided by wikipedia AST

Fucales ye un orde de la clase Phaeophyceae o algues pardes.[1] El grupu inclúi dalgunes de les algues marines más comunes de la mariña. Tolos sos miembros son pluricelulares y tienen la estructura típica d'un alga marina: rizoide, estipe y llámina.[2] La llámina xeneralmente ta bien espandida y puede tener gas en visícules. La crecedera ye por división de les célules apicales. Como'l nome xénericu d'algues pardes" suxer, la so pigmentación ye marrón.

Son oogámicos pues la fecundación realízase ente un pequeñu gametu masculín y un gran gametu femenín. La xeneración gametofita reduzse a los gametos formaos nel talu del esporófitu.

Destaquen los xéneros Fucus y Sargassum.

Galería

  • "

    Cystoseira ericoides

  • "

    Cystoseira foeniculacea

  • "

    Cystoseira granulata

  • "

    Durvillaea antarctica

  • "

    Fucus distichus

  • "

    Fucus spiralis

  • "

    Fucus serratus

  • "

    Fucus vesiculosus

  • "

    Hormosira banksii

  • "

    Pelvetia canaliculata

  • "

    Sargassum bacciferum

  • "

    Turbinaria mesenterina

  • "Fucus
  • "Fucus
  • "Fucus
  • "Neptune's
  • "Pelvetia
  • "Anna
  • "Turbinaria

Referencies

  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 07 December 2006
  2. Hoek, C.van den, Mann, D.G. and Jahns, H.M. 1995. Algae. Cambridge University Press. ISBN 0 521 30419 9
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Fucales: Brief Summary ( Asturian )

provided by wikipedia AST

Fucales ye un orde de la clase Phaeophyceae o algues pardes. El grupu inclúi dalgunes de les algues marines más comunes de la mariña. Tolos sos miembros son pluricelulares y tienen la estructura típica d'un alga marina: rizoide, estipe y llámina. La llámina xeneralmente ta bien espandida y puede tener gas en visícules. La crecedera ye por división de les célules apicales. Como'l nome xénericu d'algues pardes" suxer, la so pigmentación ye marrón.

Son oogámicos pues la fecundación realízase ente un pequeñu gametu masculín y un gran gametu femenín. La xeneración gametofita reduzse a los gametos formaos nel talu del esporófitu.

Destaquen los xéneros Fucus y Sargassum.

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