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Author: Richard Haven Backus
Publisher:
ISBN:
Category : Fishes
Languages : en
Pages : 716
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Book Description
Author: Richard Haven Backus
Publisher:
ISBN:
Category : Fishes
Languages : en
Pages : 716
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Book Description
Author: William Saville-Kent
Publisher:
ISBN:
Category : Fish trade
Languages : en
Pages : 602
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Book Description
Author:
Publisher:
ISBN:
Category : Fisheries
Languages : en
Pages : 630
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Book Description
Author: National Museum of Canada
Publisher:
ISBN:
Category : Anthropology
Languages : en
Pages : 72
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Book Description
Author: Harvey L. Moore
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 40
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Book Description
Author: John F. Craig
Publisher: John Wiley & Sons
ISBN: 1118394402
Category : Technology & Engineering
Languages : en
Pages : 920
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Book Description
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: George Armytage Rounsefell
Publisher:
ISBN:
Category : Copper sulfate
Languages : en
Pages : 684
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Book Description
The first large-scale attempt at controlling the red tide was made in the autumn of 1957. About 16 square miles stretching along 32 miles of shoreline from Anclote Key to Pass-a-grille Beach, off St. Petersburg, Florida, were dusted with copper sulfate (CuSO4·5H2O) at about 20 pounds to the acre by crop-dusting planes. The copper very quickly reduced G̲y̲m̲ṉo̲ḏi̲ṉi̲u̲m̲ ḇṟe̲v̲e̲, the red tide organisms, from several million to practically none per liter relieving the area of the respiratory irritation caused by the airborne toxin of G̲. ḇṟe̲v̲e̲. In 2 out of 5 areas the organisms rose again to concentrations lethal to fish in 10 to 14 days after dusting. This method is not recommended for general control, but will give temporary relief in local situations from the airborne toxin
Author: United States. Environmental Protection Agency. Library Systems Branch
Publisher:
ISBN:
Category : Environmental protection
Languages : en
Pages : 702
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Book Description
Author: Walter R. Whitworth
Publisher:
ISBN:
Category : Freshwater fishes
Languages : en
Pages : 150
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 228
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Book Description
