Freshwater Crayfish

Author: Tadashi Kawai
Publisher: CRC Press
ISBN: 1466586400
Format: PDF, Docs
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For their great commercial importance as a human food delicacy, crayfish are now becoming of wider interest to molecular biologists, and also to conservationists due to the fact that in some countries many of the native crayfish species are under threat from human activity, disease, and competition from other introduced crayfish species. Helmed by three editors in Japan, Europe, and the US, this book invites contributions from experts around the globe, covering the conservation status and biology of all endangered species, taxonomy, and distribution of crayfishes worldwide.

A Global Overview of the Conservation of Freshwater Decapod Crustaceans

Author: Tadashi Kawai
Publisher: Springer
ISBN: 3319425277
Format: PDF
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This book introduces updated information on conservation issues, providing an overview of what is needed to advance the global conservation of freshwater decapods such as freshwater crabs, crayfish, and shrimps. Biodiversity loss in general is highest in organisms that depend on intact freshwater habitats, because freshwater ecosystems worldwide are suffering intense threats from multiple sources. Our understanding of the number and location of threatened species of decapods, and of the nature of their extinction threats has improved greatly in recent years, and has enabled the development of species conservation strategies. This volume focuses on saving threatened species from extinction, and emphasizes the importance of the successful implementation of conservation action plans through cooperation between scientists, conservationists, educators, funding agencies, policy makers, and conservation agencies.

Management of Freshwater Biodiversity

Author: Julian Reynolds
Publisher: Cambridge University Press
ISBN: 1139502166
Format: PDF, Kindle
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Integrating research into freshwater biodiversity and the role of keystone species, this fascinating book presents freshwater crayfish as representatives of human-exacerbated threats to biodiversity and conservation. It uses examples from these and other large decapod invertebrates to explore how communities function and are controlled, alongside the implications of human demands and conflicts over limited resources, notably the severe impacts on biodiversity. The discussion is structured around three key topics – the present situation of crayfish in world freshwater ecosystems, the applications of science to conservation management and knowledge transfer for successful crayfish management. It outlines the historic exploitation of crayfish, addressing the problems caused by invasive alien forms and explaining the importance of correct identification when dealing with conservation issues. Offering a global perspective on freshwater systems, the book ultimately highlights how the conservation of such large and long-lived species will help protect ecosystem quality in the future.

Biology and Ecology of Crayfish

Author: Matt Longshaw
Publisher: CRC Press
ISBN: 1498767338
Format: PDF, ePub, Mobi
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Written by world experts in astacology, this book covers a range of aspects of the biology and ecology of freshwater crayfish. With a strong focus on wild crayfish, the book studies the taxonomy and genetics of this interesting group of animals. Under examination also are crayfish growth and reproduction, with detailed illustrations; behavior and chemical ecology of crayfish; diseases of crayfish; holistic understanding of drivers for crayfish population success; and methods for the control of non-native crayfish.

Biological Invasions in Changing Ecosystems

Author: João Canning-Clode
Publisher: Walter de Gruyter GmbH & Co KG
ISBN: 3110438666
Format: PDF, Mobi
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When organisms are deliberately or accidentally introduced into a new ecosystem a biological invasion may take place. These so-called ‘invasive species’ may establish, spread and ecologically alter the invaded community. Biological invasions by animals, plants, pathogens or vectors are one of the greatest environmental and economic threats and, along with habitat destruction, a leading cause of global biodiversity loss.

Life Histories

Author: Martin Thiel
Publisher: Oxford University Press
ISBN: 0190620277
Format: PDF, ePub, Mobi
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Crustaceans are increasingly being used as model organisms in all fields of biology, including neurobiology, developmental biology, animal physiology, evolutionary ecology, biogeography, and resource management. Crustaceans have a very wide range of phenotypes and inhabit a diverse array of environments, ranging from the deep sea to high mountain lakes and even deserts. The evolution of their life histories has permitted crustaceans to successfully colonize this variety of habitats. Few other taxa exhibit such a variety of life histories and behavior. A comprehensive overview of their life histories is essential to the understanding of many aspects of their success in marine and terrestrial environments. This volume provides a general overview of crustacean life histories. Crustaceans have particular life history adaptations that have permitted them to conquer all environments on earth. Crustacean life cycles have evolved to maximize fecundity, growth, and ageing, in a wide range of environmental conditions. Individual contributions contrast benefits and costs of different life histories including sexual versus asexual production, semelparity versus iteroparity, and planktonic larvae versus direct development. Important aspects of particular behaviors are presented (e.g. migrations, defense and territorial behaviors, anti-predator behavior, symbiosis).

Advances in Freshwater Decapod Systematics and Biology

Author: Darren Yeo
Publisher: BRILL
ISBN: 9004207619
Format: PDF, Mobi
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Advances in Freshwater Decapod Systematics and Biology presents papers on taxonomy, phylogenetics, biogeography, life history, and conservation on freshwater crabs, anomurans, prawns, and crayfish. These reflect current research, and are primers for future work and more integrative decapod research.

Freshwater Animal Diversity Assessment

Author: E.V. Balian
Publisher: Springer Science & Business Media
ISBN: 9781402082597
Format: PDF, ePub, Docs
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This book offers a comprehensive study of species- and genus-level diversity and chorology of the global freshwater fauna to date. It gives a state of the art assessment of the diversity and distribution of Metazoa in the continental waters of the world.

A Guide to Australia s Spiny Freshwater Crayfish

Author: Robert B. McCormack
ISBN: 0643103864
Format: PDF, ePub, Docs
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"This publication describes Australia's Euastacus crayfish, the largest of the 10 genera of Australian freshwater crayfish. We cover the full 50 Euastacus species found in Australia, from the iconic giant Murray lobsters (Euastacus armatus), which are recreationally fished, to the exceedingly rare tiny species, like Euastacus maidae from the New South Wales-Queensland coastal border region ... The Euastacus crayfish are referred to as 'spiny crayfish' because they have impressive arrays of spines on their hard armoured shells."--Preface.

Fish Conservation

Author: Gene S. Helfman
Publisher: Island Press
ISBN: 1597267600
Format: PDF, ePub, Mobi
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Fish Conservation offers, for the first time in a single volume, a readable reference with a global approach to marine and freshwater fish diversity and fishery resource issues. Gene Helfman brings together available knowledge on the decline and restoration of freshwater and marine fishes, providing ecologically sound answers to biodiversity declines as well as to fishery management problems at the subsistence, recreational, and commercial levels. Written in an engaging and accessible style, the book: considers the value of preserving aquatic biodiversity offers an overview of imperiled fishes on a taxonomic and geographic basis presents a synthesis of common characteristics of imperiled fishes and their habitats details anthropogenic causes of decline examines human exploitation issues addresses ethical questions surrounding exploitation of fishes The final chapter integrates topics and evaluates prospects for arresting declines, emphasizing the application of evolutionary and ecological principles in light of projected trends. Throughout, Helfman provides examples, explores case studies, and synthesizes available information from a broad taxonomic, habitat, and geographic range. Fish Conservation summarizes the current state of knowledge about the degradation and restoration of diversity among fishes and the productivity of fishery resources, pointing out areas where progress has been made and where more needs to be done. Solutions focus on the application of ecological knowledge to solving practical problems, recognizing that effective biodiversity conservation depends on meeting human needs through management that focuses on long term sustainability and an ecosystem perspective.