A Scientific American Offprint Reader in Ichthyology PDF Download
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Author:
Publisher:
ISBN:
Category : Fishes
Languages : en
Pages : 268
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Book Description
Author:
Publisher:
ISBN:
Category : Fishes
Languages : en
Pages : 268
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Book Description
Author:
Publisher:
ISBN:
Category : Aquatic ecology
Languages : en
Pages : 252
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Book Description
Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 1028
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Book Description
Author: Hilda M. Ransome
Publisher: Courier Corporation
ISBN: 0486122980
Category : History
Languages : en
Pages : 322
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Book Description
Well-documented study of bees, hives, and beekeepers, along with rare illustrations as they appear in ancient paintings, sculpture, on coins, jewelry, and Mayan glyphs.
Author: Gert Oostindie
Publisher: BRILL
ISBN: 9004271317
Category : History
Languages : en
Pages : 452
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Book Description
This title is available online in its entirety in Open Access. Dutch Atlantic Connections reevaluates the role of the Dutch in the Atlantic between 1680-1800. It shows how pivotal the Dutch were for the functioning of the Atlantic sytem by highlighting both economic and cultural contributions to the Atlantic world.
Author:
Publisher:
ISBN:
Category : Subject headings
Languages : en
Pages : 358
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Book Description
Author: Bror Jonsson
Publisher: Springer Science & Business Media
ISBN: 9400711891
Category : Science
Languages : en
Pages : 720
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Book Description
Destruction of habitat is the major cause for loss of biodiversity including variation in life history and habitat ecology. Each species and population adapts to its environment, adaptations visible in morphology, ecology, behaviour, physiology and genetics. Here, the authors present the population ecology of Atlantic salmon and brown trout and how it is influenced by the environment in terms of growth, migration, spawning and recruitment. Salmonids appeared as freshwater fish some 50 million years ago. Atlantic salmon and brown trout evolved in the Atlantic basin, Atlantic salmon in North America and Europe, brown trout in Europe, Northern Africa and Western Asia. The species live in small streams as well as large rivers, lakes, estuaries, coastal seas and oceans, with brown trout better adapted to small streams and less well adapted to feeding in the ocean than Atlantic salmon. Smolt and adult sizes and longevity are constrained by habitat conditions of populations spawning in small streams. Feeding, wintering and spawning opportunities influence migratory versus resident lifestyles, while the growth rate influences egg size and number, age at maturity, reproductive success and longevity. Further, early experiences influence later performance. For instance, juvenile behaviour influences adult homing, competition for spawning habitat, partner finding and predator avoidance. The abundance of wild Atlantic salmon populations has declined in recent years; climate change and escaped farmed salmon are major threats. The climate influences through changes in temperature and flow, while escaped farmed salmon do so through ecological competition, interbreeding and the spreading of contagious diseases. The authors pinpoint essential problems and offer suggestions as to how they can be reduced. In this context, population enhancement, habitat restoration and management are also discussed. The text closes with a presentation of what the authors view as major scientific challenges in ecological research on these species.
Author:
Publisher: University of Washington Press
ISBN: 9780295802961
Category : Oceanography
Languages : en
Pages : 468
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Book Description
The 100-year story of the International Council for the Exploration of the Sea, a scientific collaboration originally formed by eight northern European nations to address problems of overfishing in the North Atlantic. The author uses archival research and interviews to profile key ICES members and to provide insight into the relationship between fisheries science and biological oceanography. Contains a small section of historical photographs.
Author: Merriam-Webster, Inc
Publisher: Merriam-Webster
ISBN: 9780877796329
Category : Reference
Languages : en
Pages : 356
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Book Description
New edition! Convenient listing of words arranged alphabetically by rhyming sounds. More than 55,000 entries. Includes one-, two-, and three-syllable rhymes. Fully cross-referenced for ease of use. Based on best-selling Merriam-Webster's Collegiate® Dictionary, Eleventh Edition.
Author: Engineering Societies Library
Publisher: Wentworth Press
ISBN: 9781361205150
Category : History
Languages : en
Pages : 520
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Book Description
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
