FWS/OBS.
Author:
Publisher:
Published: 1984
Total Pages: 34
ISBN-13:
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Author: Rosemarie Mulholland
Publisher:
Published: 1984
Total Pages: 32
ISBN-13:
DOWNLOAD EBOOKAuthor: Edwin S. Iversen
Publisher: Springer Science & Business Media
Published: 2012-12-06
Total Pages: 411
ISBN-13: 1461312116
DOWNLOAD EBOOKLiving Marine Resources provides a thorough, up-to-date introduction to all aspects of fisheries science. This clearly written text offers insight into a topic of increasing importance--the wise utilization and management of sea fisheries to maximize production without exceeding their carrying capacity. Adoption of the approaches presented will improve the conservation and management of the many world fisheries that are suffering from years of inefficient practices. The book is divided into five sections, beginning with an introduction to the ocean environment and the various resource species. Part two examines fisheries biology, including age, growth, fecundity, and mortality, enabling readers to appreciate yield models designed to give estimates of maximum sustainable yield and maximum economic yield. The third part covers gear, methods, and landings and includes material on the handling and processing of seafood as well as aquaculture. In part four, yield models are presented to introduce students to theories on population dynamics, stock assessment, and management. The book concludes with coverage of recreational fisheries, including socioeconomic importance, catch and effort research, management techniques, and their interface with commercial fisheries. Living Marine Resources is an invaluable introduction to the subject for advanced undergraduate and graduate students of fisheries science. In addition, the material presented will be valuable to fishery and social scientists, fishery officers and administrators, and students in biology, engineering, economics, and law.
Author: Bettina S. Flood
Publisher:
Published: 1977
Total Pages: 88
ISBN-13:
DOWNLOAD EBOOKAuthor: Coastal Ecology Inst
Publisher: CRC Press
Published: 2020-02-06
Total Pages: 727
ISBN-13: 1000716414
DOWNLOAD EBOOKThis timely book is a "must-have" for anyone involved with wetland conservation, in particular bottomland hardwood forests, a habitat in which over 50% of our nation's inventory has been destroyed. Authored by recognized experts, the book thoroughly covers the ecological processes in bottomland hardwood forests and relates these processes to human activities. Chapters include original research into ecological processes, discuss impacts of human activities on flood plain ecosystems, and examine human perceptions of bottomland values and management strategies for ecosystem restoration and conservation. The book focuses on impact assessment and management, featuring local sites and ecosystems, as well as the processes in larger areas, such as watersheds and hydrological basins.
Author:
Publisher:
Published: 1981
Total Pages: 60
ISBN-13:
DOWNLOAD EBOOKAuthor: John M. Nestler
Publisher:
Published: 1995
Total Pages: 110
ISBN-13:
DOWNLOAD EBOOKIncreased water resources demand in rivers regulated by U.S. Army Corps of Engineers dams has intensified the conflict between preservation of lotic ecosystems and economic benefits of stream regulatin or channel modification. The Riverine Community Habitat and Restoration Concept (RCHARC) facilitates evaluation of effects of different channel configurations or release patterns on fish habitat and can be used to balance water resources development and natural resource preservation. The RCHARC is applied to the Gavins Point Dam tailwater of the Missouri River as a case history to assess the effects of different reservoir release alternatives on habitat for native riverine warmwater fishes. Application of the RCHARC requires four steps. First a comparison standard must be selected which the project alternatives can be contrasted. Second, hydrologic and hydraulic features of the comparison standard having fish habitat significance are described and summarized as an annual series of monthly depth or velocity frequency distributions. Third, a similar approach is used to describe hydrologic and hydraulic features of the project alternatives. Fourth, the habitat value of each of the project alternatives is determined by similarity of their depth or velocity distributions to the distributions of the standard. The more similar an alternative is to the standard system, the higher it will be ranked.
Author: Edward Maltby
Publisher: John Wiley & Sons
Published: 2009-07-23
Total Pages: 800
ISBN-13: 9781444315820
DOWNLOAD EBOOKForty-two chapters by international experts from a wide range ofdisciplines make The Wetlands Handbook the essential toolfor those seeking comprehensive understanding of the subject. Adeparture from more traditional treatises, this text examinesfreshwater wetland ecosystem science from the fundamentals toissues of management and policy. Introductory chapters address the scope and significance ofwetlands globally for communities, culture and biodiversity.Subsequent sections deal with processes underpinning wetlandfunctioning, how wetlands work, their uses and values for humansand nature, their sensitivity to external impacts, and how they maybe restored. The text is illustrated by numerous examples,emphasising functional and holistic approaches to wetlandmanagement, including case studies on the wise use andrehabilitation of wetlands in farmed, urban, industrial and otherdamaged environments, highlighting the long-term benefits ofmultiple use. The Wetlands Handbook will provide aninvaluable reference for researchers, managers, policy-makers andstudents of wetland sciences.
Author: Glenn W. Suter II
Publisher: CRC Press
Published: 2016-04-19
Total Pages: 656
ISBN-13: 1420012568
DOWNLOAD EBOOKThe definitive reference in its field, Ecological Risk Assessment, Second Edition details the latest advances in science and practice. In the fourteen years since the publication of the best-selling first edition, ecological risk assessment (ERA) has moved from the margins into the spotlight. It is now commonly applied to the regulation of c