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  • Book
    Anthony W.D. Larkum, Gary A. Kendrick, Peter J. Ralph, editors.
    Summary: This book takes the place of "Biology of Seagrasses: A Treatise on the Biology of Seagrasses with Special Reference to the Australian Region", co-edited by A.W.D. Larkum, A.J. MaCComb and S.A. Shepherd and published by Elsevier in 1989. The first book has been influential, but it is now 25 years since it was published and seagrass studies have progressed and developed considerably since then. The design of the current book follows in the steps of the first book. There are chapters on taxonomy, floral biology, biogeography and regional studies. The regional studies emphasize the importance of Australia having over half of the world's 62 species, including some ten species published for Australia since the previous book. There are a number of chapters on ecology and biogeography; fish biology and fisheries and dugong biology are prominent chapters. Physiological aspects again play an important part, including new knowledge on the role of hydrogen sulphide in sediments and on photosynthetic processes. Climate change, pollution and environmental degradation this time gain an even more important part of the book. Decline of seagrasses around Australia are also discussed in detail in several chapters. Since the first book was published two new areas have received special attention: blue carbon and genomic studies. Seagrasses are now known to be a very important player in the formation of blue carbon, i.e. carbon that has a long turnover time in soils and sediments. Alongside salt marshes and mangroves, seagrasses are now recognized as playing a very important role in the formation of blue carbon. And because Australia has such an abundance and variety of seagrasses, their role in blue carbon production and turnover is of great importance. The first whole genomes of seagrasses are now available and Australia has played an important role here. It appears that seagrasses have several different suites of genes as compared with other (land) plants and even in comparison with freshwater hydrophytes. This difference is leading to important molecular biological studies where the new knowledge will be important to the understanding and conservation of seagrass ecosystems in Australia. Thus by reason of its natural abundance of diverse seagrasses and a sophisticated seagrass research community in Australia it is possible to produce a book which will be attractive to marine biologists, coastal scientists and conservationists from many countries around the world.

    Intro; Preface; Contents; Biogeography; 1 Evolution and Biogeography of Seagrasses; Abstract; 1.1 Introduction; 1.2 Fossils and Seagrasses; 1.2.1 Fossil Record of the Alismatales; 1.2.2 Alismataceae; 1.2.3 Aponogetonaceae; 1.2.4 Hydrocharitaceae; 1.2.5 Potamogetonaceae-Cymodoceaceae (Incl. Ruppiaceae); 1.2.6 'Seagrass' Fossils; 1.2.7 Foraminiferan Evidence; 1.2.8 Other Associative Evidence; Gastropods; Crustose Coralline Algae; Sirenia; 1.3 Biogeography of Seagrasses; 1.3.1 The Present Distribution of Seagrasses; 1.3.2 Seagrass Distribution and Biogeographical Regions 1.4 New Zealand, Our Close Neighbour1.5 Conclusions; References; 2 Biogeography of Australian Seagrasses: NSW, Victoria, Tasmania and Temperate Queensland; Abstract; 2.1 Introduction; 2.2 Habitat Descriptions; 2.3 Species Distributions; 2.3.1 Temperate Queensland (QLD); Zostera muelleri; Halophila spp.; 2.3.2 Halodule uninervis; Syringodium isoetifolium; Cymodocea spp.; 2.3.3 New South Wales (NSW); Posidonia australis; Zostera muelleri; Halophila spp.; 2.3.4 Victoria (VIC); Zostera spp.; Zostera muelleri Heterozostera nigricaulis2.3.4.4 Heterozostera tasmanica; Amphibolis antarctica; Halophila australis; Posidonia australis; 2.3.5 Tasmania (TAS); Amphibolis antarctica; Halophila australis; Heterozostera tasmanica/Heterozostera nigricaulis; Posidonia australis; Zostera muelleri; 2.4 Changes in Seagrass Distribution; 2.4.1 Decadal Fluctuations in Port Phillip Bay seagrass linked to rainfall (VIC); 2.4.2 Warming-Induced Seagrass Loss from Western Port Bay (VIC) 2.4.3 Impacts of Floods and Dredging on Queensland Seagrasses (QLD)2.4.4 Decline of Seagrasses in Urban Tasmania (TAS); 2.4.5 Decline of Seagrasses in Urban New South Wales (NSW); 2.5 Conclusions; References; 3 Seagrasses of Southern and South-Western Australia; Abstract; 3.1 Introduction; 3.2 The Forces Shaping Seagrasses and the Coastline over Geological Time; 3.3 Present Day Seagrass Habitats and Drivers; 3.4 Impacts on Seagrasses in this Region; 3.5 Emerging Threats and Management Issues; 3.6 Summary; References; Taxonomy and Anatomy; 4 Anatomy and Structure of Australian Seagrasses Abstract4.1 Introduction; 4.2 Plant External Morphology (See also Table4.1); 4.3 The Foliage Leaf; 4.4 Leaf Blade (See also Table4.2); 4.5 Cuticle; 4.6 Epidermis; 4.7 Leaf Fibre Bundles; 4.8 Mesophyll and Air Lacunae; 4.9 Leaf Vascular System; 4.10 Leaf Sheath; 4.11 Stems (Erect Shoots) and Rhizomes; 4.12 Root; 4.13 Phyllosphere, Rhizosphere and Endophytes; 4.14 Reproduction: Flowers, Fruits, Seeds and Seedlings (See also Table4.3); 4.15 Concluding and Recommendations for Future Studies; Acknowledgements; References; Molecular and Taxonomic Studies
    Digital Access Springer 2018