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2009 | Buch

Seaweeds of India

The Diversity and Distribution of Seaweeds of the Gujarat Coast

verfasst von: Bhavanath Jha, C. R. K. Reddy, Mukund C. Thakur, M. Umamaheswara Rao

Verlag: Springer Netherlands

Buchreihe : Developments in Applied Phycology

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Über dieses Buch

India has 7,500 km of coastline with diverse habitats and rich biota. Coastal ecosystems, unfortunately, are experiencing wide range of pressures due to siltation, eutrophication, coastal development, aquaculture and climate change. Those species that adapt to these pressures will expand their living boundaries while others may fade away. Accordingly, the study of coastal biodiversity is of great concern globally and constitutes an important element of global change research. Gujarat has 1,600 km of coastline, reportedly with rich diversity of seaweeds. Previously published accounts on seaweed biodiversity were mainly in the form of checklists, the earliest among these being the checklist of Krishnamurthy and Joshi prepared in the early 1970s. The more recent checklists are based almost entirely on secondary information. The present book entitled Seaweeds of India – The Diversity and Distribution of Seaweeds of Gujarat Coast is a timely publication based wholly on primary data. Data were collected through extensive and systematic ? eld studies conducted by the authors during different seasons over a three year period. The authors collected nearly 200 species of seaweeds belonging to 100 genera of Chlorophyta, Phaeophyta and Rhodophyta. Twenty-four of the species are new to Gujarat coast and three are new to Indian waters. The book contains high-quality images of the different species in their existing habitats. Brief taxonomical descriptions, together with information on ecology, distribution, seasonality and abundance, are covered for each of the species.

Inhaltsverzeichnis

Frontmatter

Chlorophyta

Introduction
Gujarat is situated on the north-western most part of peninsular India between 20° 1' to 24° 7' N and 68° 4' to 74° 4' E (Fig. 1). It has total area of 196,024 km2 and a coastline of 1,650 km — the longest coastline of the country — with a continental shelf of 164,200 km2 (35.3% of the country) and an Exclusive Economic Zone (EEZ) of 214,000 km2 (9.9% of the country). Further, the state has two major gulfs namely Gulf of Khambat and Gulf of Kutch which embrace diverse coastal habitats as well as biota of ecological signifi -cance. The Gulf of Kutch is the biggest gulf on the west coast of India in the Arabian Sea and contains 42 islands fringing with corals and mangroves which provide congenial habitat for proliferation of seaweeds, nesting birds and animals. The coastal parts of both Gulf of Khambhat and Kutch region have extensive intertidal mud and sand fl ats, salt marshes, and mangrove vegetation, particularly in the river deltas of Gulf of Khambhat.
The Gujarat coast is composed of deccan traps and tertiary rocks and in places recent alluvium with lime stones with miliolite fossil forms, which are of Pleistocene age. At the Gulf of Khambhat, newer alluvium deposits are found. The tidal cycle on the Indian coast in general is semidiurnal, with two high and two low waters with unequal tidal amplitudes each day. The area of intertidal exposure depends on the tidal amplitudes and topography of the coast.
Ulotrichales, Monostromataceae
Ulvales, Ulvaceae
Acrosiphoniales, Acrosiphoniaceae
Cladophorales, Cladophoraceae
Siphonocladales, Boodleaceae
Bryopsidales, Bryopsidaceae
Dasycladales, Dasycladaceae

Phaeophyta

Ectocarpales, Chordariaceae
Dictyotales, Dictyotaceae
Scytosiphonales, Scytosiphonaceae
Fucales, Sargassaceae

Rhodophyta

Bangiales, Bangiaceae
Nemaliales, Scinaiaceae
Ahnfeltiales, Ahnfeltiaceae
Gelidiales, Gelidiaceae
Gracilariales, Gracilariaceae
Bonnemaisoniales, Bonnemaisoniaceae
Cryptonemiales, Corynomorphaceae
Halymeniales, Halymeniaceae
Corallinales, Corallinaceae
Gigartinales, Caulacanthaceae
Nemastomatales, Nemastomataceae
Sebdeniales, Sebdeniaceae
Rhodymeniales, Champiaceae
Ceramiales, Wrangeliaceae
Backmatter
Metadaten
Titel
Seaweeds of India
verfasst von
Bhavanath Jha
C. R. K. Reddy
Mukund C. Thakur
M. Umamaheswara Rao
Copyright-Jahr
2009
Verlag
Springer Netherlands
Electronic ISBN
978-90-481-2488-6
Print ISBN
978-90-481-2487-9
DOI
https://doi.org/10.1007/978-90-481-2488-6