Precipitation-runoff Modeling System
Author:
Publisher:
Published: 1984
Total Pages: 428
ISBN-13:
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Author:
Publisher:
Published: 1984
Total Pages: 428
ISBN-13:
DOWNLOAD EBOOKAuthor: John F. Craig
Publisher: John Wiley & Sons
Published: 2016-01-12
Total Pages: 920
ISBN-13: 1118394402
DOWNLOAD EBOOKInland 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: Earl L. Bozeman
Publisher:
Published: 1989
Total Pages: 28
ISBN-13:
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Publisher:
Published: 1984
Total Pages: 80
ISBN-13:
DOWNLOAD EBOOKAuthor: Ohio River Basin Commission
Publisher:
Published: 1979
Total Pages: 112
ISBN-13:
DOWNLOAD EBOOKAuthor: A. H. Wood
Publisher:
Published: 1895
Total Pages: 20
ISBN-13:
DOWNLOAD EBOOKAuthor: National Research Council
Publisher: National Academies Press
Published: 2004-09-07
Total Pages: 304
ISBN-13: 0309166586
DOWNLOAD EBOOKBecause of the pervasive and substantial decline of Atlantic salmon populations in Maine over the past 150 years, and because they are close to extinction, a comprehensive statewide action should be taken now to ensure their survival. The populations of Atlantic salmon have declined drastically, from an estimated half million adult salmon returning to U.S. rivers each year in the early 1800s to perhaps as few as 1,000 in 2001. The report recommends implementing a formalized decision-making approach to establish priorities, evaluate options and coordinate plans for conserving and restoring the salmon.
Author: John Gardner
Publisher: International Marine/Ragged Mountain Press
Published: 2003-09-02
Total Pages: 0
ISBN-13: 9780071427975
DOWNLOAD EBOOK"John Gardner's work has engaged and inspired more individuals connected with traditional small craft than will ever be counted."--WoodenBoat magazine "Deserves an honored place on the library shelf."--National Fisherman "Poses clear and impassioned means to go from the armchair to the open water via your own boat shop."--Sea History This big, handsome legacy volume contains all the plans, measurements, and directions needed to build any of 47 beautiful small boats for oar, sail, or motor.
Author: Graydon Hilyard
Publisher: Rowman & Littlefield
Published: 2018-12-15
Total Pages: 201
ISBN-13: 0811767612
DOWNLOAD EBOOKHerb Welch, the inventor of the still popular streamer pattern, the Black Ghost, is Maine’s first and only celebrity guide to gain international status. With over 200 images including archival black and white and color images by photographer John Swan, this book documents the incredible life and work of a man that excelled in art, sculpture, taxidermy (he was the premiere fish taxidermist of his day), demonstration fly casting at major North American venues, and guiding. In addition, the Hilyards include never before published streamer patterns from the Rangeley region, including nine named streamers originated/adapted and tied by Herbert Welch as well as ten newly identified streamers originated and tied by Carrie Stevens, including her only known early wet fly pattern.