Download or read book Mollusks of the Tropical Eastern Pacific written by Axel Adolf Olsson and published by . This book was released on 1961 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Marine Biodiversity of Costa Rica Central America written by Ingo S. Wehrtmann and published by Springer Science & Business Media. This book was released on 2008-12-28 with total page 545 pages. Available in PDF, EPUB and Kindle. Book excerpt: Life began in the sea, and even today most of the deep diversity of the planet is marine. This is often forgotten, especially in tropical countries like Costa Rica, renowned for their rain forests and the multitude of life forms found therein. Thus this book focusing on marine diversity of Costa Rica is particularly welcome. How many marine species are there in Costa Rica? The authors report a total of 6,777 species, or 3. 5% of the world’s total. Yet the vast majority of marine species have yet to be formally described. Recent estimates of the numbers of species on coral reefs range from 1–9 million, so that the true number of marine species in Costa Rica is certainly far higher. In some groups the numbers are likely to be vastly higher because to date they have been so little studied. Only one species of nematode is reported, despite the fact that it has been said that nematodes are the most diverse of all marine groups. In better studied groups such as mollusks and crustaceans, reported numbers are in the thousands, but even in these groups many species remain to be described. Indeed the task of describing marine species is daunting – if there really are about 9 million marine species and Costa Rica has 3. 5% of them, then the total number would be over 300,000. Clearly, so much remains to be done that new approaches are needed. Genetic methods have en- mous promise in this regard.
Download or read book Book catalog of the Library and Information Services Division written by Environmental Science Information Center. Library and Information Services Division and published by . This book was released on 1977 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Book Catalog of the Library and Information Services Division Subject index written by Environmental Science Information Center. Library and Information Services Division and published by . This book was released on 1977 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tropical Marine Mollusks written by Edward J. Petuch and published by CRC Press. This book was released on 2020-12-10 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt: Marine biogeography, the study of the spatial distribution of organisms in the world’s oceans, is one of the most fascinating branches of oceanography. This book continues the pioneering research into the distributions of molluscan faunas, first studied by biologists over 160 years ago. It illustrates 1778 species of gastropods in full color, many of which are extremely rare and poorly known endemic species that are illustrated for the first time outside of their original descriptions. The spatial arrangements of malacofaunas shown in this book can be considered proxies for worldwide oceanic conditions and used as tools for determining patterns of global climate change. The book's documentation of evolutionary "hot spots" and geographically restricted endemic faunas can also be used as a base line for future studies on patterns of environmental deterioration and extinction in the marine biosphere. Documenting the evolution of the amazingly rich worldwide gastropod fauna, this book will appeal to physical and chemical oceanographers, systematic and evolutionary biologists, historical geologists, paleontologists, climatologists, geomorphologists, and physical geographers. The authors incorporate aspects of all of these disciplines into a new classification system for the nomenclature of biogeographical spatial units found in tropical, subtropical, and warm temperate seas.
Download or read book Tropical Pacific Marine Shells written by Walter O. Cernohorsky and published by Conran Octopus. This book was released on 1978 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Estuarine and Marine Bivalve Mollusk Culture written by Winston Menzel and published by CRC Press. This book was released on 2018-01-18 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the biology, culture techniques, research and development, and future of the fishery of some of the most important bivalve mollusks cultured throughout the world. The book emphasizes those species that are truly cultured during some part of their life cycle rather than those that are harvested from natural populations. Graphs and figures summarize fisheries information and provide quick access to important production figures. Species covered include oysters, soft-shell and hard-shell clams, scallops, mussels, pearl oysters, razor clams, cockles and giant clams. Geographic areas featured include United States, Mexico, South and Central America, Europe, India, Japan, China, Philippines, Australia, New Zealand, and the coral atolls of the Pacific Ocean. Estuarine and Marine Bivalve Mollusk Culture brings together the lifetime efforts of the late Dr. Winston Menzel to characterize and improve bivalve mollusk culture worldwide. Aquaculturalists, private oyster and bivalve culturalists, and fisheries scientists will find this book to be an invaluable guide to bivalve mollusk culture.
Download or read book Evolution and Environment in Tropical America written by Jeremy B. C. Jackson and published by University of Chicago Press. This book was released on 1996-12-15 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: How were the tropical Americas formed? This ambitious volume draws on extensive, multidisciplinary research to develop new views of the geological formation of the isthmus linking North and South America and of the major environmental changes that reshaped the Neotropics to create its present-day marine and terrestrial ecosystems. Recent discoveries show that dramatic changes in climate and ocean circulation can occur very quickly, and that ecological communities respond just as rapidly. Abrupt changes in the composition of fossil assemblages, formerly dismissed as artifacts of a poor fossil record, now are seen as accurate records of swift changes in the composition of ocean communities. The twenty-four contributors use current work in paleontology, geology, oceanography, anthropology, ecology, and evolution to paint this challenging portrait of rapid environmental and evolutionary change. Their conclusions argue for a revision of existing interpretations of the fossil record and the processes—including invading Eurasian peoples—that have produced it.
Download or read book Bivalve Seashells of Western North America Marine Bivalve Mollusks from Arctic Alaska to Baja California written by Eugene V. Coan and published by Paul Valentich-Scott. This book was released on 2000-05-10 with total page 774 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Monograph of Living Chitons Mollusca Polyplacophora Volume 3 Ischnochitonidae Chaetopleurinae and Ischnochitoninae pars written by Piet Kaas and published by BRILL. This book was released on 2022-10-17 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Mollusks written by Charles F. Sturm and published by Universal-Publishers. This book was released on 2006 with total page 445 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mollusks have been important to humans since our earliest days. Initially, when humans were primarily interested in what they could eat or use, mollusks were important as food, ornaments, and materials for tools. Over the centuries, as human knowledge branched out and individuals started to study the world around them, mollusks were important subjects for learning how things worked. In this volume, the editors and contributors have brought together a broad range of topics within the field of malacology. It is our expectation that these topics will be of interest and use to amateur and professional malacologists.
Download or read book Geological Survey Bulletin written by and published by . This book was released on 1973 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Arsenic as an Indicator Element for Mineralized Volcanic Pipes in the Red Mountains Area Western San Juan Mountains Colorado written by Wilbur Swett Burbank and published by . This book was released on 1972 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: A description of a method whereby geologic mapping and geochemical sampling are possible.
Download or read book Indo Pacific Mollusca written by and published by . This book was released on 1976 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Studies in Tropical American Mollusks written by Frederick M. Bayer and published by . This book was released on 1971 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contains: Cephalopods collected in the Gulff of Panama / by Gilbert L. Voss; Mollusks from the Gulf of Panama / by Axel A. Olsson; The Conidae of the Pillsbury Expedition / by James Nybakken; New and unusual mollusks collected by R/V Elliott Pillsbury and R/V Gerda in the Tropical western Atlantic / by Frederick M. Bayer.
Download or read book The Recent Molluscan Fauna of le Clipperton tropical Eastern Pacific written by Kirstie L. Kaiser and published by . This book was released on 2007 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Superfamily Mactroidea Mollusca Bivalvia in American Waters written by Javier H. Signorelli and published by Springer Nature. This book was released on 2019-11-04 with total page 151 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
