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David M. John; George W. Lawson; Gabriel K. Ameka:

The marine macroalgae of the tropical West Africa sub-region

2003. IV, 217 pages, 56 figures, 12 colour plates, 17x24cm, 550 g
Language: English

(Nova Hedwigia, Beihefte, Beih. 125)

ISBN 978-3-443-51047-3, paperback, price: 86.00 €

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Keywords

Marine macroalgae West Africa Felsküste Alge

Contents

Abstract top ↑

Rocky shores, mangrove roots and other hard surfaces provide anchorage for seaweeds or benthic macroalgae along the environmentally relatively inhospitable coast of tropical West Africa. This user-friendly guide deals with the over 300 species of green, brown and red seaweeds known from an almost 4,000 km long stretch of West African coast (Gambia to the equator) as well as islands in the Gulf of Guinea. Descriptions and identification keys are relatively free of technical terms. Each entry takes the form of a diagnostic description of the species along with notes on its West African distribution, ecology and taxonomic or identification problems. Included are more than 250 clear line drawings and 46 colour photographs that usually emphasise features required for accurate identification.

Review: The Nigerian Field, Vol. 70, part I (April 2005), page 73 top ↑

This comprehensive survey of The seaweeds of West Africa is, in effect, a third edition of Lawson & John's earlier accounts published as Nova Hedwigia supplements in 1982 and 1987. It is, however, more user-friendly, being based on a manual prepared for a training workshop for marine scientists at the University of Ghana in 2001, and both specialists and non-specialists will find it useful for identification. Technical terms are kept to a minimum, but those necessary are defined in a glossary. The area covered is from Senegal along the coast of West Africa to the equator, plus the islands in the Gulf of Guinea. Over 300 species are described, belonging to the Chlorophyta (green algae), Phaeophyta (brown algae) and Rhodophyta (so-called red algae-though these can be various colours from purple or red to brownish yellow or green). By far the largest group is the red algae (occupying 82 pages) compared with 22 pages for the greens and 18 for the browns. Most of the species are illustrated, either as line drawings or coloured photographs. The twelve coloured plates (each with 6 photographs) include some habitat views. Dichotomous keys are provided to identify the genera and species, and the descriptions include information on ecology and distribution in West Africa. The bibliography is relatively short, but some publications mentioned contain detailed references. -Joyce Lowe The Nigerian Field, Vol. 70, part I (April 2005), page 73

Contents top ↑

Preface IV
Introduction 1
Scope 1
Keys 2
Ecology 2
Illustrations and Photographs 3
Distinguishing Characters 3
Classification 5
Key to Phyla 6
Key to Genera 6
Phylum Chlorophyta (Green Algae) 20
Phylum Phaeophyta (Brown Algae) 42
Phylum Rhodophyta (Red Algae) 59
Figures 148
Glossary 202
Bibliography 210
Taxonomic Index 213