A Benthic Macroinvertebrate Study from the Headwaters to the Mouth of the Lieutenant River in New London County, Old Lyme, Connecticut PDF Download

Author: George Francis Edmonds
Publisher:
ISBN:
Category :
Languages : en
Pages : 146

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Author: Intergovernmental Panel on Climate Change. Working Group II.
Publisher: Cambridge University Press
ISBN: 9780521634557
Category : Science
Languages : en
Pages : 532

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Cambridge, UK : Cambridge University Press, 1998.

Author: Mason S. London
Publisher:
ISBN:
Category : Benthos
Languages : en
Pages : 60

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Book Description
Intermittent streams are common throughout the world and comprise 60% or more of total river lengths in the conterminous United States. Despite their prevalence, intermittent streams are understudied, particularly first-order headwater streams, which are vital for maintaining the function, health and biotic diversity of river networks. In June 2016, I sampled five intermittent and five perennial headwater streams in the Mattole River watershed in northwestern coastal California, USA, to compare benthic macroinvertebrate (BMI) assemblages between intermittent and perennial streams. BMI samples were collected using a 500μm mesh D-net at eight randomly located riffles along a 150-m reach, and then composited, on each of the 10 streams. Chemical (e.g. pH, dissolved oxygen, temperature, and flow) and physical (e.g. bed substrate composition, bank-full width, and slope) data were measured at each stream reach. BMI samples were identified using Standard Taxonomic Effort (STE). Major difference in assemblages among stream type were not detected except for a few individual taxa, families, and orders. Observed differences likely resulting from taxonomic differences in life history timing. The proportion of shredders was detectably lower in intermittent streams. Further studies with a temporal factor are needed to validate these findings.

Author: Vladimir Novotny
Publisher: IWA Publishing
ISBN: 1843391368
Category : Science
Languages : en
Pages : 458

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This book is developed from and includes the presentations of leading international experts and scholars in the 12-14 July, 2006 Wingspread Workshop. With urban waters as a focal point, this book will explore the links between urban water quality and hydrology, and the broader concepts of green cities and smart growth. It also addresses legal and social barriers to urban ecological sustainability and proposes practical ways to overcome those barriers. Cities of the Future features chapters containing visionary concepts on how to ensure that cities and their water resources become ecologically sustainable and are able to provide clean water for all beneficial uses. The book links North American and Worldwide experience and approaches. The book is primarily a professional reference aimed at a wide interdisciplinary audience, including universities, consultants, environmental advocacy groups and legal environmental professionals.

Author: Aat Barendregt
Publisher:
ISBN: 9783823615514
Category : Estuarine ecology
Languages : en
Pages : 320

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Author: Alexander M. Milner
Publisher:
ISBN:
Category : Biotic communities
Languages : en
Pages : 186

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Author: Philip Boon
Publisher: John Wiley & Sons
ISBN: 1119961963
Category : Nature
Languages : en
Pages : 449

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Book Description
This book is intended for those with an academic, scientific and practical interest in river conservation and management. It provides an overview of how changes in legislation, policies, institutional responsibilities, science, technology, practical techniques and public perception have influenced how rivers have been managed over the past 20 years and the challenges that lie ahead during the next 20 years. The book is based on the international conference River Conservation and Management:20 Years On held at York. Thirty-one chapters, with contributions from North and South America, Europe, Asia and Australasia provide a wide-ranging perspective on this complex but profoundly important subject. Following an introduction that chronicles the most important contextual changes, the book is organized into four broad topics: Catchment management, ecosystem integrity and the threats to river ecosystems – this covers progress on understanding and addressing the pressures affecting rivers, many of which will be amplified by climate change and increasing human demands for water; Methods and approaches – illustrating some recent techniques that have been developed to assess condition and conservation status across different types of river; Recovery and rehabilitation – providing an insight into the principles, practice, public involvement and institutional networks that support and make improvements to modified river reaches; Integrating nature conservation into wider river management –demonstrating the importance of integrated planning, involvement of local communities and the use of adaptive management in achieving multiple environmental and economic benefits along rivers used for different purposes. The final chapter discusses the challenges faced in dealing with an uncertain future. More than 1200 different references and numerous web-site citations provide the reader with an invaluable source of knowledge on the subject area.

Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 2

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Author: Lesley C. Batty
Publisher: Cambridge University Press
ISBN: 1139486160
Category : Nature
Languages : en
Pages :

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Written for researchers and practitioners in environmental pollution, management and ecology, this interdisciplinary account explores the ecological issues associated with industrial pollution to provide a complete picture of this important environmental problem from cause to effect to solution. Bringing together diverse viewpoints from academia and environmental agencies and regulators, the contributors cover such topics as biological resources of mining areas, biomonitoring of freshwater and marine ecosystems and risk assessment of contaminated land in order to explore important questions such as: What are the effects of pollutants on functional ecology and ecosystems? Do current monitoring techniques accurately signal the extent of industrial pollution? Does existing policy provide a coherent and practicable approach? Case studies from throughout the world illustrate major themes and provide valuable insights into the positive and negative effects of industrial pollution, the provision of appropriate monitoring schemes and the design of remediation and restoration strategies.

Author: Brooks M. Barnes
Publisher: University of Virginia Press
ISBN: 9780813918792
Category : Biography & Autobiography
Languages : en
Pages : 292

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Book Description
ASSATEAGUE, Chincoteague, Parramore, Smith's, Hog, Wallop's: The names of Virginia's isolated barrier islands evoke their beauty and wildness, their dynamic ecology. Drawing chapters from the writings of novelists, naturalists, journalists, and outdoorsmen, Seashore Chronicles presents the history of these slender, constantly shifting landforms from the 1650s to the present. Robert E. Lee surveys the agricultural potential of Smith's Island, and a young Howard Pyle describes the Chincoteague pony penning. William Warner provides an impressionistic foreword and noted writer Tom Horton adds a contemporary chapter on the islands' survival. Eastern Shore residents Brooks Miles Barnes and Barry R. Truitt have compiled a cyclical story of economic settlement, of destruction and conservation, for those who have visited the islands many times as well as for those who have not yet experienced their alluring vitality.