Bleher's Biotopes. Expeditions to Aquatic Habitats. Aquatic Biotopes in Nature. Biotope Aquarium PDF Download

Author: Heiko Bleher
Publisher:
ISBN: 9788890973680
Category : Pets
Languages : en
Pages : 460

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Author: Heiko Bleher
Publisher:
ISBN: 9788890973628
Category : Travel
Languages : en
Pages : 460

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Author: Dick Au
Publisher:
ISBN: 9781932892048
Category :
Languages : en
Pages :

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Author: Jan H.A. Mol
Publisher: BRILL
ISBN: 9004207651
Category : Science
Languages : en
Pages : 899

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With some 480 currently known fresh- and brackish-water fish species, Suriname has a rich inland fish fauna that is related to the most diverse freshwater fish fauna on planet Earth, i.e. that of the Amazon River. Interest in the freshwater fishes of Suriname by naturalists and scientists extends back over more than two centuries. Suriname is undoubtedly the site of origin of the oldest extant preserved specimens of South American fishes and 19 Surinamese fish species were described and figured by Linnaeus. Building on ichthyological studies initiated in the 1960s by the Brokopondo Project, this book provides an introduction to the freshwater fish fauna of Suriname, including identification keys, photographs of the species and descriptions of their habitats, that should be especially useful to decision makers, conservation biologists, aquarium hobbyists and eco-tourists.

Author: John A. Parrotta
Publisher: Springer Science & Business Media
ISBN: 9400721447
Category : Science
Languages : en
Pages : 639

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Exploring a topic of vital and ongoing importance, Traditional Forest Knowledge examines the history, current status and trends in the development and application of traditional forest knowledge by local and indigenous communities worldwide. It considers the interplay between traditional beliefs and practices and formal forest science and interrogates the often uneasy relationship between these different knowledge systems. The contents also highlight efforts to conserve and promote traditional forest management practices that balance the environmental, economic and social objectives of forest management. It places these efforts in the context of recent trends towards the devolution of forest management authority in many parts of the world. The book includes regional chapters covering North America, South America, Africa, Europe, Asia and the Australia-Pacific region. As well as relating the general factors mentioned above to these specific areas, these chapters cover issues of special regional significance, such as the importance of traditional knowledge and practices for food security, economic development and cultural identity. Other chapters examine topics ranging from key policy issues to the significant programs of regional and international organisations, and from research ethics and best practices for scientific study of traditional knowledge to the adaptation of traditional forest knowledge to climate change and globalisation.

Author: John A. Parrotta
Publisher:
ISBN:
Category : Forest management
Languages : en
Pages : 222

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Author: Christel Kasselmann
Publisher:
ISBN: 9781575240916
Category : Aquarium plants
Languages : en
Pages : 0

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Book Description
This text describes the temperature, water, fertilizer and light needs of more than 300 aquarium plants. Artificial lighting - lamp types, colour temperatures and mounting - is discussed in detail and the author provides advice on choosing the right plants for an aquarium. Ecological factors, flower biology and morphology and reproduction methods receive detailed coverage. The book contains colour photographs with nearly all plants depicted with fully developed submerged foliage. Botanists as well as professional and amateur keepers should find this book useful.

Author: James Dwight Dana
Publisher:
ISBN:
Category : Coral reefs and islands
Languages : en
Pages : 426

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Author: Jonathan Turnbull Phinney
Publisher: American Geophysical Union
ISBN: 0875903592
Category : Science
Languages : en
Pages : 251

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Published by the American Geophysical Union as part of the Coastal and Estuarine Studies, Volume 61. The effects of increased atmospheric carbon dioxide and related climate change on shallow coral reefs are gaining considerable attention for scientific and economic reasons worldwide. Although increased scientific research has improved our understanding of the response of coral reefs to climate change, we still lack key information that can help guide reef management. Research and monitoring of coral reef ecosystems over the past few decades have documented two major threats related to increasing concentrations of atmospheric CO2: (1) increased sea surface temperatures and (2) increased seawater acidity (lower pH). Higher atmospheric CO2 levels have resulted in rising sea surface temperatures and proven to be an acute threat to corals and other reef-dwelling organisms. Short periods (days) of elevated sea surface temperatures by as little as 1–2°C above the normal maximum temperature has led to more frequent and more widespread episodes of coral bleaching-the expulsion of symbiotic algae. A more chronic consequence of increasing atmospheric CO2 is the lowering of pH of surface waters, which affects the rate at which corals and other reef organisms secrete and build their calcium carbonate skeletons. Average pH of the surface ocean has already decreased by an estimated 0.1 unit since preindustrial times, and will continue to decline in concert with rising atmospheric CO2. These climate-related Stressors combined with other direct anthropogenic assaults, such as overfishing and pollution, weaken reef organisms and increase their susceptibility to disease.

Author: Keith Rodney Benson
Publisher: University of Washington Press
ISBN: 9780295982397
Category : Nature
Languages : en
Pages : 576

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Book Description
From a study of knowledge of the sea among indigenous cultures in the South Seas to inquiries into the subject of sea monsters, from studies of Pacific currents to descriptions of ocean-going research vessels, the sixty-three essays presented here reflect the scientific complexity and richness of social relationships that characterize ocean-ographic history. Based on papers presented at the Fifth International Congress on the History of Oceanography held at the Scripps Institution of Oceanography (the first ICHO meeting following the cessation of the Cold War), the volume features an unusual breadth of contributions. Oceanography itself involves the full spectrum of physical, biological, and earth sciences in their formal, empirical, and applied manifestations. The contributors to Oceanographic History: The Pacific and Beyond undertake the interdisciplinary task of telling the story of oceanography’s past, drawing on diverse methodologies. Their essays explore the concepts, techniques, and technologies of oceanography, as well as the social, economic, and institutional determinants of oceanographic history. Although focused on the Pacific, the geographic range of subjects is global and includes Micronesia, East Africa, and Antarctica; the bathymetric range comprises inshore fisheries, coral reefs, and the "azoic zone." The seventy-one contributors represent every continent of the globe except Antarctica, bringing together material on the history of oceanography never before published.