Biology of the Pacific Ocean: Bogorov, V.G. Plankton
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Published: 1969
Total Pages: 438
ISBN-13:
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Published: 1969
Total Pages: 438
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Published: 1969
Total Pages: 230
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DOWNLOAD EBOOKAuthor: Evgenii A. Romankevich
Publisher: Springer Science & Business Media
Published: 2013-11-11
Total Pages: 351
ISBN-13: 3642499643
DOWNLOAD EBOOKMy work Geochemistry oj organic matter in the ocean first appeared in Russian in 1978. Since then much progress has been made in the exploration of various forms of organic matter in the ocean: dissolved, colloidal, organic matter sus pended in particles and that contained in bottom sediments and in interstitial waters. The appropriate evidence is found in hundreds of articles and several re view works, such as Andersen (1977), Biogeochimie de [a matiere organique a ['interjace eau-sedimentmarine (1980), Duursma and Dawson (1981). A great amount of new information has been obtained in the Soviet Union's scientific institutions on the composition and distribution in natural waters and bottom sediments of organic matter and its separate components playing a crucial role in the formation of the chemical and biological structure of the ocean and its productivity, in the biogeochemistry of the elements and geochemistry of organic matter in the Earth's sedimentary cover. The areas of exploration have expanded over the past four-and-a-half years to embrace many new, little-known regions, including the Arctic seas. In contrast to the three preceeding decades, the research has been focused on investigating the existing forms, the distribution and accumulation of organic matter in near continental oceanic zones between land and sea, and in river estuaries.
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Publisher:
Published: 1956
Total Pages: 32
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DOWNLOAD EBOOKAuthor: Lorentz C. Pearson
Publisher: CRC Press
Published: 2023-08-11
Total Pages: 682
ISBN-13: 1000947106
DOWNLOAD EBOOKThis exciting new textbook examines the concepts of evolution as the underlying cause of the rich diversity of life on earth-and our danger of losing that rich diversity. Written as a college textbook, The Diversity and Evolution of Plants introduces the great variety of life during past ages, manifested by the fossil record, using a new natural classification system. It begins in the Proterozoic Era, when bacteria and bluegreen algae first appeared, and continues through the explosions of new marine forms in the Helikian and Hadrynian Periods, land plants in the Devonian, and flowering plants in the Cretaceous. Following an introduction, the three subkingdoms of plants are discussed. Each chapter covers one of the eleven divisions of plants and begins with an interesting vignette of a plant typical of that division. A section on each of the classes within the division follows. Each section describes where the groups of plants are found and their distinguishing features. Discussions in each section include phylogeny and classification, general morphology, and physiology, ecological significance, economic uses, and potential for research. Suggested readings and student exercises are found at the end of each chapter.
Author: United States. Bureau of Commercial Fisheries
Publisher:
Published: 1964
Total Pages: 354
ISBN-13:
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Publisher:
Published: 1957
Total Pages: 704
ISBN-13:
DOWNLOAD EBOOKAuthor:
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Published: 1956
Total Pages: 496
ISBN-13:
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Published: 1969-07
Total Pages: 798
ISBN-13:
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