A Scientific American Offprint Reader in Ichthyology
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Published: 1976
Total Pages: 268
ISBN-13:
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Author:
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Published: 1976
Total Pages: 268
ISBN-13:
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Publisher:
Published: 1976
Total Pages: 252
ISBN-13:
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Published: 1962
Total Pages: 1028
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Publisher: University of Washington Press
Published:
Total Pages: 468
ISBN-13: 9780295802961
DOWNLOAD EBOOKThe 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: Gert Oostindie
Publisher: BRILL
Published: 2014-06-20
Total Pages: 452
ISBN-13: 9004271317
DOWNLOAD EBOOKThis 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: Bror Jonsson
Publisher: Springer Science & Business Media
Published: 2011-05-03
Total Pages: 720
ISBN-13: 9400711891
DOWNLOAD EBOOKDestruction 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.
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Published: 1967
Total Pages: 354
ISBN-13:
DOWNLOAD EBOOKAuthor: Hilda M. Ransome
Publisher: Courier Corporation
Published: 2012-04-20
Total Pages: 322
ISBN-13: 0486122980
DOWNLOAD EBOOKWell-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: Angela R. Glatston
Publisher: William Andrew
Published: 2010-11-25
Total Pages: 489
ISBN-13: 1437778143
DOWNLOAD EBOOKRed Panda: Biology and Conservation of the First Panda provides a broad-based overview of the biology of the red panda, Ailurus fulgens. A carnivore that feeds almost entirely on vegetable material and is colored chestnut red, chocolate brown and cream rather than the expected black and white. This book gathers all the information that is available on the red panda both from the field and captivity as well as from cultural aspects, and attempts to answer that most fundamental of questions, "What is a red panda?" Scientists have long focused on the red panda's controversial taxonomy. Is it in fact an Old World procyonid, a very strange bear or simply a panda? All of these hypotheses are addressed in an attempt to classify a unique species and provide an in-depth look at the scientific and conservation-based issues urgently facing the red panda today. Red Panda not only presents an overview of the current state of our knowledge about this intriguing species but it is also intended to bring the red panda out of obscurity and into the spotlight of public attention. - Wide-ranging account of the red panda (Ailurus fulgens) covers all the information that is available on this species both in and ex situ - Discusses the status of the species in the wild, examines how human activities impact on their habitat, and develops projections to translate this in terms of overall panda numbers - Reports on status in the wild, looks at conservation issues and considers the future of this unique species - Includes contributions from long-standing red panda experts as well as those specializing in fields involving cutting-edge red panda research.