Guide to Mangroves of Sri Lanka PDF Download

Author: M. G. Manoj Prasanna
Publisher:
ISBN: 9789550033775
Category :
Languages : en
Pages : 70

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Author: Padma Kumari De Silva
Publisher:
ISBN: 9789559114376
Category : Mangrove plants
Languages : en
Pages : 0

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Author: K. B. Ranawana
Publisher:
ISBN: 9789559120834
Category : Mangrove plants
Languages : en
Pages : 54

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Author: Arjan Rajasuriya
Publisher: IUCN
ISBN: 9550205274
Category : Nature
Languages : en
Pages : 116

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The hope is that this field guide, along with its companion, volume 1, will be useful resources for snorkelers, divers, and all those interested in marine life in expanding their knowledge on identification of species found in the reef habitats of Sri Lanka.

Author: Leonard Pinto
Publisher:
ISBN: 9789555900027
Category : Mangrove ecology
Languages : en
Pages : 54

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Author: DK
Publisher: Penguin
ISBN: 146543271X
Category : Travel
Languages : en
Pages : 290

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Book Description
A new first-edition DK Eyewitness Travel Guide A wealth of history, culture, and natural beauty awaits in Sri Lanka, an island nation located just off India's southern coast. This new first-edition DK Eyewitness Travel Guide: Sri Lanka delivers the full DK Eyewitness Travel Guides treatment--including the famous cutaway illustrations of major architectural and historic sights, museum floor plans, and maps. DK Eyewitness Travel Guide: Sri Lanka includes everything a traveler needs to know to experience the best Sri Lanka has to offer. Photography, illustrations, and maps show the sights of Sri Lanka in full color throughout, while themed itineraries help travelers plan trips by length of stay and by interest. Hotels and restaurant listings include DK Choice special recommendations and an array of options for all budget levels. The guidebook is organized with maps and historical overviews for each region, and neighborhood walking maps include restaurant locations by area, as well as key sights not to miss. Expert travel writers explain the stories the behind the sights and include overviews of the nation's history and culture so you always discover more about the places you visit. From spectacular national parks to manicured tea plantations, beautiful beaches, and the bustling capital city of Colombo, this country offers vacation options for all types of travelers. And, with hundreds of full-color photographs, hand-drawn illustrations, and custom maps that illuminate every page, DK Eyewitness Travel Guide: Sri Lanka truly shows you this destination as no one else can.

Author: DK Travel
Publisher: Penguin
ISBN: 1465459812
Category : Travel
Languages : en
Pages : 290

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DK Eyewitness Travel Guide: Sri Lanka is your in-depth guide to the very best of this beautiful and diverse country. Explore Sri Lanka region-by-region, from Colombo and the beaches on its idyllic west coast to Kandy and the Hill Country to Jaffna and the north. Visit Yala National Park to see wildlife, play a game of cricket, and take a pilgrimage to Adam's Peak. Discover DK Eyewitness Travel Guide: Sri Lanka. + Detailed itineraries and "don't-miss" destination highlights at a glance. + Illustrated cutaway 3-D drawings of important sights. + Floor plans and guided visitor information for major museums. + Guided walking tours, local drink and dining specialties to try, things to do, and places to eat, drink, and shop by area. + Area maps marked with sights. + Detailed city maps include street finder indexes for easy navigation. + Insights into history and culture to help you understand the stories behind the sights. + Hotel and restaurant listings highlight DK Choice special recommendations. With hundreds of full-color photographs, hand-drawn illustrations, and custom maps that illuminate every page, DK Eyewitness Travel Guide: Sri Lanka truly shows you this country as no one else can.

Author: Silva, E. I. L.
Publisher: IWMI
ISBN: 9290907789
Category : Nature
Languages : en
Pages : 126

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Sri Lanka, an island in the Indian Ocean, has lagoons along 1,338 km of its coastline. They experience low-energy oceanic waves and semidiurnal microtidal currents. The Sri Lankan coastal lagoons are not numerous but they are diverse in size, shape, configuration, ecohydrology, and ecosystem values and services. The heterogeneous nature, in general, and specific complexities, to a certain extent, exhibited by coastal lagoons in Sri Lanka are fundamentally determined by coastal and adjoining hinterland geomorphology, tidal fluxes and fluvial inputs, monsoonal-driven climate and weather, morphoedaphic attributes, and cohesive interactions with human interventions.Most coastal lagoons in Sri Lanka are an outcome of mid-Holocene marine transgression and subsequent barrier formation and spit development enclosing the water body between the land and the sea. This process has varied from one coastal stretch to another due to wave-derived littoral drift, sediment transport by tidal fluxes, fluvial inputs and wave action or, in other words, sea-level history, shore-face dynamics and tidal range as the three major factors that control the origin and maintenance of the sandy barrier, the most important features for the formation and evolution of coastal lagoons with their landward water mass. In certain stretches of Sri Lanka’s coastline, formation of the barrier spit was very active due to shore-face dynamics that resulted in chains of shore parallel, elongated lagoons. They are among the most productive in terms of ecosystem yield and show some similarities to large tropical lagoons with respect to sea entrance, zonation, biodiversity and ecosystem services. However, some of them become seasonally hypersaline due to lack of freshwater input and high evaporation. Functions and processes of some of these water bodies are fairly known. There are a fair number of small back-barrier lagoons of different shapes and sizes whose origin goes back to sea-level history. They are located on low-energy coasts with prominent beach ridges and restricted hinterland geomorphology. Mixing processes of these landward indentations are hindered by elevated sand dunes, and their salinity increases due to poor freshwater input and high evaporation leading to seasonally hypersaline conditions. These sedimented lagoons, primarily confined to the southeastern coast of the island, are biologically the least productive, with limited ecosystem values and services. Another group of moderately elongated semicircular, slightly large lagoons in the same coast, formed exclusively by submergence due to mid-Holocene sea-level rises, do not receive sufficient freshwater input leading to seasonally hypersaline conditions. They are also biologically unproductive but some are ecologically important since they provide habitats conducive to migratory birds. In contrast, some lagoons on the southern coast receive sufficient freshwater via streams draining the wet zone, maintain more estuarine salinities, exhibit rich biodiversity and serve as functional resource units. Lagoons formed by mid-Holocene submergence and recession of water level with simultaneous chain barrier formation on the high energy southwest coast, which includes cliffs, small bays and headlands, show peculiar configurations and link channel characteristics. Some of these irregular water bodies have clusters of small isles and luxuriant mangrove swamps with high biodiversity but not very rich in catadromous finfish and shellfish species due to the restricted nature of the entrance channel and nondistinct salinity gradients. The barrier-built, seasonally hypersaline lagoon complex in the Jaffna Peninsula, the largest lagoon system in the country with multiple perennial entrances show extremely narrow salinity ranges towards the upper limit of salinity. The main lagoon is elongated and the shore parallel to eastward and southward extensions is connected by narrow channels. The other lagoon in the Jaffna Peninsula is elongated, shore parallel and ribbon-shaped and receives tidal water throughout the year but freshwater is received only from precipitation and surface runoff. Even though the lagoons in the peninsula are extremely rich in ecosystem heterogeneity their hydrology and hydrodynamics have been severely disturbed by infrastructural development for transportation and by attempts to create a freshwater river for Jaffna. There are a few virgin lagoons of moderate size also on the northern coast, south of the Jaffna Peninsula on both the east and west sides. They look very typical tropical lagoons rich in biodiversity and biological production but their structure, functions and values are virtually unknown in scientific or socioeconomic terms. The lagoons located on the east coast are not numerous but relatively large in extent. They are also an outcome not only of mid-Holocene sea-level rises but of submerged multi-delta valleys or abandoned paleo estuaries. When inundated, the multi-delta valley configuration became elongated and is shore parallel with a smooth seaward shoreline; both shorelines become irregular when coastal waves are weak, and internal waves are created by the action of local winds. Configuration of a lagoon formed by inundation of an abandoned river valley is irregular with a long entrance channel extended landward. These lagoons are highly productive with a variety of associated ecosystems, large open water areas and wide perennial sea entrances. When the lagoon is too much elongated, zonation is prominent due to fewer entrance effects. Lagoons form a particular type of natural capital which generates use values (fish, shrimp, fuelwood, salt, fodder, ecotourism, anchorage, recreation, etc.) and nonuse values (habitat preservation, biodiversity, ecosystem linkages, etc.) contributing positively towards improving the human well-being. Of many values of lagoons in Sri Lanka, only the extractive values are generally utilized at present, by way of fish and shrimp catches, salt production and use of mangrove for various purposes. Besides, coastal lagoons generate a range of nonextractive use values and nonuse values, which could add towards the total economic value. Misuse has taken place at several instances when “use” adversely affects the status of the resources or the health of the ecosystem due to vulnerability and poverty, population pressure, urbanization, development activities and multi-stakeholder issues. The status of lagoon resources shows that the resources in the majority of Sri Lankan lagoons still remain satisfactory, somewhat good or very good. Nevertheless, concerns for management of lagoons in Sri Lanka exist only where “use values” (extractive values, such as fish and shrimp) exist. There is no evidence of resources management in lagoons for inspirational, scholarly values or tacit knowledge of the same. Management for use values exhibits several stages from zero management to comanagement via community management and state intervention. Most of Sri Lanka’s lagoons have the potential for generating high extractive and nonextractive use values which could improve the human well-being, while maintaining resources sustainability. Unfortunately, these potentials have not been understood or “seen” yet by the relevant authorities, although a few instances of exploring this potential were noticed.

Author: W. D. Emmerson
Publisher: Cambridge Scholars Publishing
ISBN: 1443896128
Category : Science
Languages : en
Pages : 720

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Decapods are a culmination of nearly 600 million years of Crustacean evolution, during which time they have radiated into a variety of superfamilies, families, genera and species which occupy a variety of niches from fresh mountain streams to the abysses of the oceans. This book will fill a gap in the current literature on southern African decapods. Since Barnard published his Descriptive Catalogue of South African Decapod Crustacea in 1950, there have been numerous additions and name changes. This publication updates the taxonomy, and includes ecological and fisheries information. In addition, Kensley’s (1981) distributional checklist for the region has been updated and includes large numbers of new species and records for the region, bringing the total number of decapod to over 1000 species. Although not exhaustive, 262 species are featured, some of which are beautiful, some have commercial or artisinal value, both for consumption and the aquarium, and some have important ecological functions, while others are rare or interesting. For each species there is a photograph, synonymies, common names, a description, ecological information and name derivation (etymology). All the decapod families found in South Africa are described, some new, along with chapters on decapod research history in southern Africa, commercial and artisinal food value of decapods, biodiversity and future research direction. The book is arranged systematically, as taxonomy is based on phylogeny, starting with the earliest forms and progressing to the most derived and advanced forms, and will serve to stimulate interest and future research into southern Africa’s rich decapod biodiversity, especially at a time when biodiversity itself is threatened by global warming, coral bleaching and habitat loss. It will appeal to people interested in Decapoda, including academics, scholars, students, fishermen, aquarists, aquaculturists, recreational snorkel and SCUBA divers, as well as those interested in conservation, biodiversity, management and governance.

Author:
Publisher:
ISBN:
Category : Mangrove conservation
Languages : en
Pages : 790

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