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Author: Harold Ernest Vokes
Publisher:
ISBN:
Category : Bivalves
Languages : en
Pages : 340
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Book Description
Author: Harold Ernest Vokes
Publisher:
ISBN:
Category : Bivalves
Languages : en
Pages : 340
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Book Description
Author: Steven M. Stanley
Publisher: Geological Society of America
ISBN: 0813711258
Category : Adaptation (Biology).
Languages : en
Pages : 310
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Book Description
Author: Elizabeth Harper
Publisher: Geological Society of London
ISBN: 9781862390768
Category : Science
Languages : en
Pages : 512
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Book Description
Bivalves are key components of recent marine and freshwater ecosystems and have been so for most of the Phanerozoic. Their rich and long fossil record, combined with their abundance and diversity in modern seas, has made bivalves the ideal subject of palaeobiological and evolutionary studies. Despite this, however, topics such as the early evolution of the class, relationships between various taxa and the life habits of some key extinct forms have remained remarkably unclear. This volume integrates palaeontological and zoological approaches and sheds new light on the course of bivalve evolution.
Author: Philippe Bouchet
Publisher:
ISBN: 9783939767275
Category :
Languages : en
Pages : 184
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Author: Addison Emery Verrill
Publisher:
ISBN:
Category : Mollusks
Languages : en
Pages : 0
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Author: Javier H. Signorelli
Publisher: Springer Nature
ISBN: 3030290972
Category : Science
Languages : en
Pages : 151
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Book Description
This book identifies all valid species belonging to the superfamily Mactroidea living in American waters, distributed across fourteen biogeographical provinces. It also provides an updated classification of the widely occurring Mactroidea superfamily, which comprises eight subfamilies grouped into four families: Mactridae (Lamarck, 1809); Anatinellidae (Deshayes, J.Gray 1853); Cardiliidae (Fischer, 1887) and Mesodesmatidae (J. Gray, 1840). The species included in this superfamily are known to have existed in North America since the Early Cretaceous.
Author: Eugene V. Coan
Publisher: Paul Valentich-Scott
ISBN: 0936494301
Category : Science
Languages : en
Pages : 774
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Book Description
The culmination of a ten-year study, Bivalve Seashells of Western North America treats all bivalve mollusks living from northern Baja California, Mexico to Arctic Alaska. A total of 472 species are described and illustrated with detailed photographs and drawings. All habitats in the region are included from the intertidal splash zone to the abyssal depths of the ocean basins. The book has over 4,800 complete bibliographic references to the bivalves, including citations on the biology, physiology, ecology, and taxonomy of this commercially and biologically important group. Character tables and dichotomous keys assist the reader in identification. Also included in the 764 page book is an illustrated key to the superfamiles of the region, and a complete glossary.
Author: Norman Dennis Newell
Publisher:
ISBN:
Category : Bivalves
Languages : en
Pages : 634
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Book Description
Since their origin in the Early Cambrian, the bivalve molluscs have evolved a remarkable variety of forms that reflect their diverse habits through the Phanerozoic Eon. The thirty papers in this volume represent the proceedings of an international symposium on the paleobiology and evolution of the bivalves held at the Royal Tyrrell Museum of Paleontology in Drumheller, Canada, from September 29 through October 2, 1995. An international group of authors, representing a dozen countries, draw on diverse aspects of both fossil and living bivalves, including their forms, functional morphology, morphogenesis, taphonomy, shell microstructure, cladistic relationships, biostratigraphic distributions, and molecular sequences. The result is an authoritative and comprehensive collection of studies dedicated to Dr. Norman D. Newell, an eminent paleontologist whose ongoing contributions to the study of bivalve evolution spans six decades. With more than 200 illustrations and a foreword by renowned paleobiologist and author Stephen Jay Gould, Bivalves: An Eon of Evolution presents a broad spectrum of current research on fossil and living bivalves.
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309152313
Category : Science
Languages : en
Pages : 191
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Book Description
U.S. mariculture production of bivalve molluscs-those cultivated in the marine environment-has roughly doubled over the last 25 years. Although mariculture operations may expand the production of seafood without additional exploitation of wild populations, they still depend upon and affect natural ecosystems and ecosystem services. Every additional animal has an incremental effect arising from food extraction and waste excretion. Increasing domestic seafood production in the United States in an environmentally and socially responsible way will likely require the use of policy tools, such as best management practices (BMPs) and performance standards. BMPs represent one approach to protecting against undesirable consequences of mariculture. An alternative approach to voluntary or mandatory BMPs is the establishment of performance standards for mariculture. Variability in environmental conditions makes it difficult to develop BMPs that are sufficiently flexible and adaptable to protect ecosystem integrity across a broad range of locations and conditions. An alternative that measures performance in sustaining key indicators of ecosystem state and function may be more effective. Because BMPs address mariculture methods rather than monitoring actual ecosystem responses, they do not guarantee that detrimental ecosystem impacts will be controlled or that unacceptable impact will be avoided. Ecosystem Concepts for Sustainable Bivalve Mariculture finds that while performance standards can be applied for some broad ecosystem indicators, BMPs may be more appropriate for addressing parameters that change from site to site, such as the species being cultured, different culture methods, and various environmental conditions. This book takes an in-depth look at the environmental, social, and economic issues to present recommendations for sustainable bivalve mariculture.
Author: Addison Emery Verrill
Publisher:
ISBN:
Category : Bivalves
Languages : en
Pages : 216
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Book Description
