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Author : P. A. Ryan
Publisher : Unknown
Page : 68 pages
File Size : 46,9 Mb
Release : 2003
Category : Fish communities
ISBN : UOM:39076002300692
Author : U.S. Fish and Wildlife Service
Publisher : Unknown
Page : 236 pages
File Size : 52,8 Mb
Release : 1995
Category : Fishery law and legislation
ISBN : UOM:39015050451916
Author : John H. Hartig,United States. Environmental Protection Agency,Canada. Environment Canada
Publisher : Ann Arbor, MI : Great Lakes Fishery Commission
Page : 48 pages
File Size : 55,8 Mb
Release : 1993
Category : Fish communities
ISBN : UVA:35007000103519
Author : B. Delworth Gardner,Randy T. Simmons
Publisher : Transaction Publishers
Page : 427 pages
File Size : 45,5 Mb
Release : 2012-01-01
Category : Business & Economics
ISBN : 9781412842693
Water is becoming increasingly scarce. If recent usage trends continue, shortages are inevitable. Aquanomics discusses some of the instruments and policies that may be implemented to postpone, or even avoid, the onset of âwater crises.â These policies include establishing secure andtransferable private water rights and extending these rights to uses that traditionally have not been allowed, includingaltering in-stream flows and ecosystem functions. The editors argue that such policies will help maximize water quantity and quality as water becomes scarcer and more valuable. Aquanomics contains many examples of how this is being accomplished, particularly in the formation of water markets and market-like exchanges of water rights. Many observers see calamity ahead unless water supplies are harnessed and effectively conserved, and unless water quality can be improved. It is also clear that declining water quality is a serious problem in much of the world, as increasing human activities induce high levels of water degradation. Those who voice these concerns, argue the contributors to this volume, fail to consider the forces for improvement inherent in market political-economic systems that can address water issues. The contributors see water quality in economically advanced countries as improving, and they believe this establishes the validity of market-based approaches.
Author : John F. Craig
Publisher : John Wiley & Sons
Page : 920 pages
File Size : 46,8 Mb
Release : 2016-01-12
Category : Technology & Engineering
ISBN : 9781118394403
Inland fisheries are vital for the livelihoods and food resources of humans worldwide but their importance is underestimated, probably because large numbers of small, local operators are involved. Freshwater Fisheries Ecology defines what we have globally, what we are going to lose and mitigate for, and what, given the right tools, we can save. To estimate potential production, the dynamics of freshwater ecosystems (rivers, lakes and estuaries) need to be understood. These dynamics are diverse, as are the earths freshwater fisheries resources (from boreal to tropical regions), and these influence how fisheries are both utilized and abused. Three main types of fisheries are illustrated within the book: artisanal, commercial and recreational, and the tools which have evolved for fisheries governance and management, including assessment methods, are described. The book also covers in detail fisheries development, providing information on improving fisheries through environmental and habitat evaluation, enhancement and rehabilitation, aquaculture, genetically modified fishes and sustainability. The book thoroughly reviews the negative impacts on fisheries including excessive harvesting, climate change, toxicology, impoundments, barriers and abstractions, non-native species and eutrophication. Finally, key areas of future research are outlined. Freshwater Fisheries Ecology is truly a landmark publication, containing contributions from over 100 leading experts and supported by the Fisheries Society of the British Isles. The global approach makes this book essential reading for fish biologists, fisheries scientists and ecologists and upper level students in these disciplines. Libraries in all universities and research establishments where biological and fisheries sciences are studied and taught should have multiple copies of this hugely valuable resource. About the Editor John Craig is Editor-in-Chief of the Journal of Fish Biology and has an enormous range of expertise and a wealth of knowledge of freshwater fishes and their ecology, having studied them around the globe, including in Asia, North America, Africa, the Middle East and Europe. His particular interests have been in population dynamics and life history strategies. He is a Fellow of the Linnean Society of London and the Royal Society of Biology.
Author : Patrick Kestemont,Konrad Dabrowski,Robert C. Summerfelt
Publisher : Springer
Page : 901 pages
File Size : 54,8 Mb
Release : 2015-10-15
Category : Science
ISBN : 9789401772273
This extensive work focuses on an important group of temperate freshwater fish, approaching the topic from the perspectives of both biology and aquaculture. It compiles the latest research on fish belonging to the Percidae family and describes in detail all biological aspects relevant to the culture of different species, including ecology, reproductive physiology, feeding and nutrition, genetics, immunology, stress physiology and behavior. It also considers commercial fish production and fish farming topics, such as protocols for induction of gonad maturation, spawning, incubation and larval rearing. Expert contributors not only provide a critical peer review of scientific literature but also original research data, and identify effective practical techniques. The book features chapters on systematics, ecology and evolution, on development, metabolism and husbandry of early life stages and on growth, metabolism, behavior and husbandry of juvenile and grow-out stages. Furthermore, the authors consider genetic improvement and domestication, as well as diseases and health management, crucial to the readers' understanding of these fish and how they can be cultured. Both researchers of percid fish biology and aquaculture professionals who are considering intensive and pond culture of percid fishes will value this timely and comprehensive handbook.)
Author : Thomas J. Stewart,Andy Todd,Steven R. LaPan
Publisher : Unknown
Page : 24 pages
File Size : 49,6 Mb
Release : 2017
Category : Fishery management
ISBN : OCLC:1019904406
Author : William H. Horns
Publisher : Unknown
Page : 92 pages
File Size : 40,7 Mb
Release : 2003
Category : Fish communities
ISBN : UOM:39015056318499
Author : Robert Wallus,Thomas P. Simon
Publisher : CRC Press
Page : 455 pages
File Size : 44,7 Mb
Release : 2006-06-02
Category : Nature
ISBN : 9781000611434
This seven-volume series is the most extensive treatise on early life histories of the freshwater fishes of North America. It represents the state-of-the-art in fishery biology and provides a systematic approach to the study of early life histories of all the fishes in this region. Each volume contains distinguishing characteristics and a pictorial
Author : Patrice Couture,Greg Pyle
Publisher : CRC Press
Page : 317 pages
File Size : 44,6 Mb
Release : 2015-08-05
Category : Science
ISBN : 9781498730334
The genus Perca includes only three species of fish, but they are ubiquitous and abundant in freshwater and brackish environments of the northern hemisphere, from North America to Europe and Asia. These species are important both ecologically and economically. In Biology of Perch, world-renowned specialists review and update the biology of these fish. The book opens with a review of the genetic makeup of this complex assemblage from early post-glacial dispersion to the colonization of new habitats. The influences of geomorphological and biological factors on the dispersal of yellow perch (Perca flavescens) are explored. Two case studies exploit unique historical databases to follow population dynamics of yellow perch and European perch (P. fluviatilis) and to demonstrate how fisheries and habitat management can drastically influence the fate of fish populations. Three other chapters are dedicated to the general reproductive physiology, parasitology, and behavior of Perca species. The third species, the Balkhash perch (P. schrenkii), is a rare and threatened species of the Balkans, and a chapter is dedicated to its biology. The book ends with a review of the use of Perca species around the world as sentinels of ecological integrity and biomonitors in ecotoxicological studies.
Author : Brandon C. Schroeder,Shari L. Dann
Publisher : University of Michigan Regional
Page : 137 pages
File Size : 40,7 Mb
Release : 2019-05-24
Category : Nature
ISBN : 9780472037216
A detailed look at the history, health, and management of the Great Lakes fishery
Author : Marc Edward Gaden
Publisher : Unknown
Page : 624 pages
File Size : 52,5 Mb
Release : 2006
Category : Fishery management
ISBN : UOM:39015069227893
Author : Anonim
Publisher : Unknown
Page : 130 pages
File Size : 47,9 Mb
Release : 2010
Category : Fish communities
ISBN : MINN:31951D030834290
Author : Great Lakes Fishery Commission
Publisher : Unknown
Page : 14 pages
File Size : 40,8 Mb
Release : 2003
Category : Fisheries
ISBN : UOM:39015060924001
Author : United States. Congress. Senate. Committee on Environment and Public Works
Publisher : Unknown
Page : 98 pages
File Size : 54,7 Mb
Release : 2004
Category : Medical
ISBN : UOM:39015061647049
