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Author: B.R. Allanson
Publisher: Springer Science & Business Media
ISBN: 9789061930884
Category : Science
Languages : en
Pages : 386
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Book Description
Author: B.R. Allanson
Publisher: Springer Science & Business Media
ISBN: 9789061930884
Category : Science
Languages : en
Pages : 386
Get Book Here
Book Description
Author: B.R. Allanson
Publisher: Springer Science & Business Media
ISBN: 9400923821
Category : Science
Languages : en
Pages : 461
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Book Description
Limnology - the study of inland waters - had its genesis in Europe about the turn of the century. The studies of Fore1 on Lake Geneva were of seminal value at this time. It prospered under the early guidance of Thienemann, Naumann and Wesenberg-Lund in Europe and, soon transplanted, of Birge and Juday in North America (to name just a few early spirits). Now, liminology is a respectable scientific discipline taught at many universities, and limnologists are recognized as important contributors to our understanding of how this fragile spaceship functions. All this acknowledged, it must also be acknowledged that limnology is not yet a globally comprehensive science. To be sure, much is known about globally applicable processes, and the structural elements of aquatic ecosystems worldwide, but limnological emphases, interests and concerns remain essentially European and North American in balance. Much is known about lakes and rivers in less than one fifth of the world's land area (northern temperature regions); rather little is known about inland waters elsewhere.
Author:
Publisher: UNEP/Earthprint
ISBN: 9789280726947
Category : Nature
Languages : en
Pages : 108
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Book Description
Prepared as part of UNEP's contribution to the 11th World Lakes Conference (held in Nairobi, Kenya in November 2005), this publication examines the environmental changes taking place to Africa's lakes by analysing ground photographs, current and historical satellite images and scientific evidence. Changes highlighted include the rapid shrinking of Lake Songor in Ghana, partly as a result of intensive salt production, and the extraordinary changes in the Zambezi river system as a result of the building of the Cabora Basa dam site. Other impacts, some natural and some human-made and which can only be truly appreciated from space, include the extensive deforestation around Lake Nakuru in Kenya, and the falling water levels of Lake Victoria which is now about a metre lower than it was in the early 1990s. The analysis recognises the importance of Africa's lakes as a source of livelihoods for many local communities, their contribution to the socio-economic development of the continent and the need for the sustainable management of these resources in order to help overcome poverty and meet internationally agreed development goals by 2015.
Author:
Publisher:
ISBN:
Category : Hydrology
Languages : en
Pages : 568
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Book Description
Author: W. D. Emmerson
Publisher: Cambridge Scholars Publishing
ISBN: 144386143X
Category : Science
Languages : en
Pages : 650
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Book Description
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: Roger S. V. Pullin
Publisher: WorldFish
ISBN: 9710400045
Category : Cichlids
Languages : en
Pages : 429
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Book Description
This conference brought together 19 tilapia biologists and experimental culturists from 10 countries. It was designed from the outset as a technical conference on the basic biology of the tilapias and applications in culture systems. The conference did not consider the commercial aspects of tilapia culture.
Author: M.C.M Beveridge
Publisher: Springer Science & Business Media
ISBN: 9401140081
Category : Science
Languages : en
Pages : 517
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Book Description
Referred to in the Bible, pictured on the wall-friezes of ancient Egyptian tombs, and a subject of fascination for generations of scientists, the tilapias (Cichlidae: Tilapiini) have featured in the diet and culture of humankind for thousands of years. The present century has seen their spread from Africa throughout the tropics and sub-tropics, largely for food and fisheries purposes. This book attempts to pull together our knowledge of this important group - their biology and fisheries and aquaculture - in a single volume, something that has not been done comprehensively for nearly two decades. A succession of chapters by acknowledged authorities covers evolution, phylogenetic relationships and biogeography, reproductive biology, mating systems and parental care, diet, feeding and digestive physiology, environmental physiology and energetics, the role of tilapias in ecosystems, population dynamics and management, genetics, seed production, nutrition, farming, economics and marketing. The book is aimed at biologists, fisheries scientists, aquaculturists, and all interested in aquatic ecology.
Author: Barbara McCrea
Publisher: Penguin
ISBN: 1848364334
Category : Travel
Languages : en
Pages : 740
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Book Description
Presents a guide to places to stay, eat, explore, view wildlife, and play in South Africa with background information on the country and its culture and maps and photographs to help plan a trip.
Author: Rough Guides
Publisher: Apa Publications (UK) Limited
ISBN: 1835290779
Category : Travel
Languages : en
Pages : 973
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Book Description
This South Africa, Lesotho & Eswatini guidebook is perfect for independent travellers planning a longer trip. It features all of the must-see sights and a wide range of off-the-beaten-track places. It also provides detailed practical information on preparing for a trip and what to do on the ground. And this South Africa, Lesotho & Eswatini travel guidebook is printed on paper from responsible sources, and verified to meet the FSC’s strict environmental and social standards. This South Africa, Lesotho & Eswatini guidebook covers: Cape Town and the Cape Peninsula, The Western Cape, The Northern Cape, The Eastern Cape, KwaZulu Natal, Free State, Gauteng, North West Province, Mpumalanga, Limpopo, Lesotho, Eswatini. Inside this South Africa, Lesotho & Eswatini travel book, you’ll find: A wide range of sights – Rough Guides experts have hand-picked places for travellers with different needs and desires: off-the-beaten-track adventures, family activities or chilled-out breaks Itinerary examples – created for different time frames or types of trip Practical information – how to get to South Africa, Lesotho & Eswatini, all about public transport, food and drink, shopping, travelling with children, sports and outdoor activities, tips for travellers with disabilities and more Author picks and things not to miss in South Africa, Lesotho & Eswatini – The Wild Coast, Hluhluwe-iMfolozi Park, Soweto, The Drakensberg, Vernacular Architecture, Addo Elephant National Park, Traditional Arts and Crafts, Stellenbosch, The Sani Pass, Game Trails, Cape Point, Storms River Mouth, Kgalagadi Transfrontier Park, The Bo-Kaap, Kruger National Park Insider recommendations – tips on how to beat the crowds, save time and money, and find the best local spots When to go to South Africa, Lesotho & Eswatini – high season, low season, climate information and festivals Where to go – a clear introduction to South Africa, Lesotho & Eswatini with key places and a handy overview Extensive coverage of regions, places and experiences – regional highlights, sights and places for different types of travellers, with experiences matching different needs Places to eat, drink and stay – hand-picked restaurants, cafes, bars and hotels Practical info at each site – hours of operation, websites, transit tips, charges Colour-coded mapping – with keys and legends listing sites categorised as highlights, eating, accommodation, shopping, drinking and nightlife Background information for connoisseurs – history, culture, art, architecture, film, books, religion, diversity Essential Afrikaans dictionary and glossary of local terms Fully updated post-COVID-19 The guide provides a comprehensive and rich selection of places to see and things to do in South Africa, Lesotho & Eswatini, as well as great planning tools. It’s the perfect companion, both ahead of your trip and on the ground.
Author: Rough Guides
Publisher: Apa Publications (UK) Limited
ISBN: 1786710994
Category : Travel
Languages : en
Pages : 1030
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Book Description
Discover South Africa, Lesotho and Swaziland with themost incisive and entertaining guidebook on the market. Whether you plan tosafari in Kruger National Park, savour the fine wines of the Western Cape orexplore the village where Nelson Mandela grew up, The Rough Guide to South Africa, Lesotho & Swaziland will showyou ideal places to sleep, eat, drink and shop along the way. Inside The Rough Guide to South Africa,Lesotho & Swaziland - Independent, trusted reviewswritten in Rough Guides' trademark blend of humour, honesty and insight,to help you get the most out of your visit, with options to suit everybudget. - Full-colour maps throughout -navigate Johannesburg's downtown shopping streets or the beachfrontof Port Elizabeth without needing to get online. - Detailed regional coverage -whether off the beaten track or in more mainstream tourist destinations,this travel guide has in-depth practical advice for every step of the way.Areas covered include: Cape Town and the Cape Peninsula; The Western Cape;The Northern Cape; The Eastern Cape; the Garden Route; KwaZulu-Natal; Durban;Free State; Gauteng; Johannesburg; North West Province; Mpumalanga; Limpopo;Lesotho; Swaziland. Attractions include: Table Mountain; RobbenIsland; Kirstenbosch National Botanical Garden; Stellenbosch; the WildCoast; Hluhluwe-Imfolozi Park; the Drakensberg mountains; Joburg'sApartheid Museum; Blyde River Canyon; Kruger National Park. - Stunning, inspirational images Itineraries - carefully plannedroutes to help you organize your trip. - Basics - essential pre-departurepractical information including getting there, local transport, accommodation, foodand drink, health, the media, festivals, sports and outdoor activities, crimeand personal safety, and more. - Background information - aContexts chapter devoted to history, music and books, plus a handy languagesection and glossary. Make the Most of Your Time on Earth with theRough Guide to South Africa, Lesotho & Swaziland.
