The Freshwater Mussels of Ohio

The Freshwater Mussels of Ohio
Author: G. Thomas Watters
Publisher:
Total Pages: 448
Release: 2009
Genre: Nature
ISBN:

In the early nineteenth century, a naturalist named Rafinesque stood on the banks of the Ohio River and began to describe the freshwater mussels he found there. Since that time, these animals have earned a place among the most imperiled animals in North America. Dozens of species have become extinct, and it is estimated that two-thirds of the remaining freshwater mussels face a similar fate. Yet, despite their importance, the mussels of Ohio remain a poorly documented and largely mysterious fauna. This book compiles existing research on Ohio's mussels, synthesizing works on genetics, biology, and systematics into one volume. Full-page color images depict shell variation, hinge detail, and beak sculpture. Full-page maps show the distribution of each species based upon the collections of numerous museums, with historical distributions dating from the 1800s. In addition to species accounts, the book has an introductory section that includes information on basic biology, human use, and conservation issues.--adapted from jacket.

Fishes of West Virginia

Fishes of West Virginia
Author: Jay Stauffer
Publisher: Academy of Natural Sciences
Total Pages: 404
Release: 2007-12
Genre: Nature
ISBN: 9781422317839

This comprehensive work on the fishes of WV is the culmination of more than 20 years of res. Contains descriptions of the major river drainages in WV, a brief discussion of the zoogeog. of the fishes within the state, a table of fish dist. by drainage, a guide to the anatomical features used in fish ident., dichotomous keys to the families & species of WV fishes, physical descriptions of all fish species known or expected to occur in the state, & a glossary to supplement the species descriptions. Info. was gathered by: All major fish museums in the eastern U.S. were contacted & records of specimens collected were requested; museums with significant holdings of WV fishes were visited; & New fish surveys were conducted at approx. 1,000 sites throughout the state. Illus.

The Historical Archaeology of Virginia from Initial Settlement to the Present

The Historical Archaeology of Virginia from Initial Settlement to the Present
Author: Clarence R. Geier
Publisher: Createspace Independent Publishing Platform
Total Pages: 232
Release: 2017-02-10
Genre:
ISBN: 9781541023482

The book includes six chapters that cover Virginia history from initial settlement through the 20th century plus one that deals with the important role of underwater archaeology. Written by prominent archaeologists with research experience in their respective topic areas, the chapters consider important issues of Virginia history and consider how the discipline of historic archaeology has addressed them and needs to address them . Changes in research strategy over time are discussed , and recommendations are made concerning the need to recognize the diverse and often differing roles and impacts that characterized the different regions of Virginia over the course of its historic past. Significant issues in Virginia history needing greater study are identified.

Reservoir Sedimentation

Reservoir Sedimentation
Author: G.W. Annandale
Publisher: Elsevier
Total Pages: 233
Release: 1987-01-01
Genre: Science
ISBN: 0080870201

Research on reservoir sedimentation in recent years has been aimed mainly at water resources projects in developing countries. These countries, especially in Africa, often have to cope with long droughts, flash floods and severe erosion problems. Large reservoir capacities are required to capture water provided by flash floods so as to ensure the supply of water in periods of drought. The problem arising however is that these floods, due to their tremendous stream power, carry enormous volumes of sediment which, due to the size of reservoirs, are virtually deposited in toto in the reservoir basin, leading to fast deterioration of a costly investment. Accurate forecasting of reservoir behaviour is therefore of the utmost importance.This book fills a gap in current literature by providing in one volume comprehensive coverage of techniques required to practically investigate the effects sediment deposition in reservoirs has on the viability of water resources projects. Current techniques for practically estimating sediment yield from catchments, estimating the volume of sediment expected to deposit in reservoirs, predicting sediment distribution and calculating scour downstream of reservoirs are evaluated and presented. The liberal use of diagrams and graphs to explain the various techniques enhances understanding and makes practical application simple. A major feature of the book is the application of stream power theory to explain the process of reservoir sedimentation and to develop four new methods for predicting sediment distribution in reservoirs.The book is primarily directed at practising engineers involved in the planning and design of water resources projects and at post-graduate students interested in this field of study.

Geology of the San Francisco Bay Region

Geology of the San Francisco Bay Region
Author: Doris Sloan
Publisher: Univ of California Press
Total Pages: 353
Release: 2006-06-27
Genre: Nature
ISBN: 0520241266

"You can't really know the place where you live until you know the shapes and origins of the land around you. To feel truly at home in the Bay Area, read Doris Sloan's intriguing stories of this region's spectacular, quirky landscapes."—Hal Gilliam, author of Weather of the San Francisco Bay Region "This is a fascinating look at some of the world's most complex and engaging geology. I highly recommend this book to anyone interested in an understanding of the beautiful landscape and dynamic geology of the Bay Area."—Mel Erskine, geological consultant "This accessible summary of San Francisco Bay Area geology is particularly timely. We are living in an age where we must deal with our impact on our environment and the impact of the environment on us. Earthquake hazards, and to a lesser extent landslide hazards, are well known, but the public also needs to be aware of other important engineering and environmental impacts and geologic resources. This book will allow Bay Area residents to make more intelligent decisions about the geological issues affecting their lives."—John Wakabayashi, geological consultant