Download or read book Morphology and Distribution of the Acanthoecidae Choanoflagellata from the Weddell Sea During the Austral Summer 1977 written by Kurt Buck and published by . This book was released on 1980 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Morphology and Distribution of the Acanthoecidae Choanoflagellata from the Weddell Sea During the Austral Summer 1977 written by Kurt Randall Buck and published by . This book was released on 1979 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt: Eight species of loricate choanoflagellates (Acanthoecidae), Acanthoecopsis spiculifera, Bicosta spinifera, Bicosta antennigera, Calliacantha simplex, Calliacantha multispina aff., Crinolina aperta, Diaphanoeca multiannulata, and Parvicorbicula socialis, were observed in samples obtained from the Weddell Sea during the austral summers, 1977. D. multiannulata was described for the first time from thse samples; the other organisms have either been described previously or are being described at this time. The distribution of most species within the Weddell Sea was widespread. The distributional, environmental, and morphological range of A. spiculifera, B. spinifera, C. aperta, and P. socialis was expanded. Habitats in which choanoflagellates were found included the water column, the edges of ice floes, ponds on ice floes, and the interiors of ice floes. The presence of choanoflagellates within the ice indicates that there may be a closely coupled trophic relationship with the other two biological components of the ice community, the ice algae and the bacteria. The presence in the ice of seven species with both a caudal appendage and anterior projections suggests a positive relationship between this lorica configuration and the ice habitat. Mechanisms of variance of transverse costal diameters between genera may be useful to the taxonomy and phylogeny of this family. (Author).

Download or read book Antarctic Bibliography written by and published by . This book was released on 1984 with total page 776 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings of the Royal Society of London written by Royal Society (Great Britain) and published by . This book was released on 1981 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt: Publishes refereed research papers in all aspects of the biological sciences. As a fast track journal, it specialises in the rapid delivery of the latest research to the scientific community.

Download or read book Technical Abstract Bulletin written by and published by . This book was released on 1980 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Recent Polar and Glaciological Literature written by and published by . This book was released on 1981 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Korean Journal of Systematic Zoology written by and published by . This book was released on 2007 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Sea Ice Biota written by Horner and published by CRC Press. This book was released on 2018-01-18 with total page 223 pages. Available in PDF, EPUB and Kindle. Book excerpt: Investigators from a number of countries have been studying the ice community and experimental information is now available from a number of geographic areas. This includes ecological data as well as community and species specific physiological information. The literature on ice biota is scattered, being found in scientific journals, research and technical reports, symposia proceedings, M. S. theses and Ph.D. dissertations, meeting abstracts, and books on topics ranging from algal ecology to regional oceanography. Much of the material has not been published and some is available only in proprietry or difficult to obtain reports. The purpose of this book is to bring the data and references together in one place and to provide state of the art information on these little known, but ecologically important, polar communities.

Download or read book Government Reports Announcements Index written by and published by . This book was released on 1981 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Handbook of Protoctista written by Lynn Margulis and published by Jones & Bartlett Publishers. This book was released on 1990 with total page 1068 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Arctic Seas written by Yvonne Herman and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 887 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Arctic region has long held a fascination for explorers and scientists of many countries. Despite the numerous voyages of exploration, the na ture of the central Arctic was unknown only 90 years ago; it was believed to be a shallow sea dotted with islands. During Nansen's historic voyage on the polarship Fram, which commenced in 1893, the great depth of the central basin was discovered. In the Soviet Union, investigation of the Arctic Ocean became national policy after 1917. Today research at several scientific institutions there is devoted primarily to the study of the North Polar Ocean and seas. The systematic exploration of the Arctic by the United States com menced in 1951. Research has been conducted year-round from drifting ice islands, which are tabular fragments of glacier ice that break away from ice shelves. Most frequently, ice islands originate off the northern coast of Ellesmere Island. These research platforms are occupied as weather sta tions, as well as for oceanographic and geophysical studies. Several inter national projects, conducted by Canadian, European, and U. S. groups, have been underway during the last three decades. Although much new data have accumulated since the publication of the Marine Geology and Oceanography of the Arctic Seas volume in 1974 (Yvonne Herman, ed. ), in various fields of polar research-including present-day ice cover, hydrogra phy, fauna, flora, and geology-many questions remain to be answered.

Download or read book Handbook of the Protists written by John M. Archibald and published by Springer. This book was released on 2017-08-16 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Published in a modern, user-friendly format this fully revised and updated edition of The Handbook of Protoctista (1990) is the resource for those interested in the biology, diversity and evolution of eukaryotic microorganisms and their descendants, exclusive of animals, plants and fungi. With chapters written by leading researchers in the field, the content reflects the present state of knowledge of the cell and genome biology, evolutionary relationships and ecological/medical/economic importance each major group of protists, organized according to current protist systematics as informed by molecular phylogenetics and genomics.

Download or read book written by and published by . This book was released on with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book CRREL Benchnotes written by and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1982 with total page 920 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monthly Catalogue United States Public Documents written by and published by . This book was released on 1982 with total page 1124 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Choanoflagellates written by Barry S. C. Leadbeater and published by Cambridge University Press. This book was released on 2015-01-08 with total page 331 pages. Available in PDF, EPUB and Kindle. Book excerpt: A unique account of the biology, ecology and evolution of choanoflagellates - the closest, known, living, unicellular relatives of animals.