Living dendrolitic microbial mats in hamelin pool, Shark Bay, Western Australia

Erica P. Suosaari, Stanley M. Awramik, Pamela R Reid, John F. Stolz, Kathleen Grey

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Hamelin Pool, Shark Bay, Western Australia, is home to the largest and most diverse assemblage of living marine stromatolites, with shapes and sizes comparable to ancient structures. A recent field-intensive program revealed seasonally ephemeral occurrences of modern dendrolitic microbial mats forming in intertidal, low energy settings. Dominated by filamentous cyanobacteria, dendrolitic microbial mats are formed when filaments provide a supporting framework as a result of gliding mobility, to build a shrubby morphology. Dendrolites, known throughout the rock record, refer to macroscopic microbialites with mesostuctures composed of unlaminated arborescent structures called shrubs. In these modern examples, thick filaments of Lyngbya aestuarii form the “trunk” of the bush, with finer filaments of Lyngbya fragilis, Phormidium sp. and Schizothrix sp. forming the “branches” These biologically-influenced dendrolitic structures provide insight into the complex interplay of microbial communities and the environment, broadening our understanding of shrub and dendrolite formation throughout the rock record.

Original languageEnglish (US)
Article number212
JournalGeosciences (Switzerland)
Volume8
Issue number6
DOIs
StatePublished - Jun 11 2018

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microbial mat
shark
shrub
gliding
rock
cyanobacterium
microbial community
energy
programme

Keywords

  • Cyanobacteria
  • Dendrolite
  • Hamelin Pool
  • Lyngbya
  • Microbialites
  • Non-lithifying microbial mats
  • Shrubs

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)

Cite this

Living dendrolitic microbial mats in hamelin pool, Shark Bay, Western Australia. / Suosaari, Erica P.; Awramik, Stanley M.; Reid, Pamela R; Stolz, John F.; Grey, Kathleen.

In: Geosciences (Switzerland), Vol. 8, No. 6, 212, 11.06.2018.

Research output: Contribution to journalArticle

Suosaari, Erica P. ; Awramik, Stanley M. ; Reid, Pamela R ; Stolz, John F. ; Grey, Kathleen. / Living dendrolitic microbial mats in hamelin pool, Shark Bay, Western Australia. In: Geosciences (Switzerland). 2018 ; Vol. 8, No. 6.
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