Small-sized Achnanthales (Bacillariophyta) from coral sands off Mascarenes (Western Indian Ocean)
Ed.: Catherine Riaux-Gobin; Oscar E. Romero; Pierre Compère; Adil Y. Al-Handal
2011. 234 pages, 2 tables, 88 plates, 1 map, 23x14cm, 480 g
Language: English
(Bibliotheca Diatomologica, Band 57)
ISBN 978-3-443-57048-4, paperback, price: 94.00 €
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Keywords
mascarenes • réunion • mauritius • rodrigues • achnanthes • cocconeis • tropics • reef • indian ocean
Benthic marine diatoms from tropical environments are still poorly
documented, despite their high diversity.
Coral reef biotopes of the Mascarene Islands (Western Indian Ocean
Archipelago: Réunion, Mauritius, Rodrigues Islands) provide the
opportunity to study a large part of their diatom community: the
abundant small-sized Achnanthales treated here.
Diatoms of other environments of very variable nutrient status were
studied in Réunion and Rodrigues Islands and include areas of both low
and high anthropogenic impact.
This monograph describes taxa of seven genera, upon which
Cocconeis Ehrenberg was particularly diverse.
Scanning and light microscope images document and illustrate a
total of 59 taxa, eight of them are new descriptions from these islands.
This study serves as a basis for further investigations in the Mascarenes, Réunion
the Rodrigues Islands and
other tropical areas.
Introduction 5
The Mascarenes 5
Diversity of coral reef diatoms 7
Preliminary remarks 8
Material and methods 8
Taxonomy 11
Order Achnanthales Silva 11
New taxa described 12
Taxa description 13
Taxa with unfixed classification 40
Discussion 43
General comments about the Mascarene small-sized Achnanthales 43
New taxa and endemism in Mascarenes 44
Characteristics shared by taxa close or affiliated to Cocconeis peltoides 46
Small-sized taxa and the importance of SEM observations 47
Acknowledgments 47
References 48
LM Plates 56
SEM Plates 70
Taxonomic Index 232