Lmst

La dernière fiche publiée nous parle d'une #algue brune de nos côtes est-atlantiques : l'algue filamenteuse de La Pylaie.

Par l'excellente équipe
QUINTIN Christophe, VERLAQUE Marc, MÜLLER Yves in : #DORIS, 08/01/2026 :
Pylaiella littoralis (Linnaeus) Kjellman, 1872, https://doris.ffessm.fr/ref/specie/6111

#biodiversite #Ochrophyta #Phaeophyceae #biodiversity #Ectocarpales #vegetaux #algae #ffessm

#FotoVorschlag: Dem Boden ganz nah // Very close to the ground

Damit diese #Braunalge dem Meeresboden ganz nah ist, bildet sie so eine komische Knolle, mit der sie sich an Felsen verankert. Diese schnell wachsende, einjährige Algenart kann bis zu 4 m lang werden und wächst in Tiefen bis 35 m. Im Herbst ist Feierabend, und oft wird die Knolle dann wie hier an den #Strand geschwemmt.
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This #brownAlgae stays close to the seabed with the help of its warty, bulbous #holdfast that attaches to rocks. A fast growing, annual #seaweed, it can reach up to 4 metres in length and is found at depths of up to 35 metres. In autumn, it begins fruiting and starts to decay, with the #bulb often washing up on the #shore.

#TextureTuesday

#SaccorhizaPolyschides #Saccorhiza #basaleKnolle #Sackwurzeltang #Braunalgen #Phaeophyceae #Tang #kelpForest #Tangwald #Algenwald #Rhizoid #kelp #Thallus #furbelows #furbellow #furbellows #seaHedgehog #seaweed #Seetang #algae #Alge #Algen #beach #MorfaNefyn

A close-up of the holdfast of Saccorhiza polyschides (a type of seaweed or kelp), lying on light-coloured sand. The holdfast is dark brown, with a rough, knobbly texture and multiple finger-like extensions radiating outward. Its surface appears slightly weathered, with grains of sand clinging to its structure. The surrounding sand is fine and pale, with a few scattered fragments of shells and debris. The image highlights the intricate, organic form of this marine organism.

#Phycologists discover what makes some #BrownAlgae shimmer and others not
https://phys.org/news/2024-05-phycologists-brown-algae-shimmer.html

#StructuralColour in the brown algal genus Sporochnus (Sporochnales, #Phaeophyceae) https://phys.org/news/2024-05-phycologists-brown-algae-shimmer.html

"Most brown #algae are yellowish-brown, but #scuba divers noticed that a species resembling #Sporochnus shimmers like peacock feathers in yellow, bright green or blue when direct light is shone on them."

#Phaeophyceae

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