Download or read book Systematics Biology and Morphology of World Polychaeta written by Mary E. Petersen and published by BRILL. This book was released on 2023-07-03 with total page 724 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contains 67 original papers by nearly 100 of the world’s leading specialists. Together with abstracts and literature references for 37 presentations not represented by papers, this volume provides complete coverage of the Conference and a comprehensive overview of modern research on the polychaete annelids, one of the most important groups of marine invertebrates and constituents of marine benthos. Taxonomic and subject indices of all papers and abstracts provide ready access to the contained information. Richly illustrated, this book is provided with numerous line drawings, and photomicrographs, electron micrographs. Over 60 taxa are newly described or reassigned, and detailed reviews, revisions or redescriptions are provided for five families, one subfamily and numerous genera and species, with many illustrations of new and redescribed taxa and a pictorial key to the maglonids of Thailand.
Download or read book Revision of Sternaspis Otto 1821 Polychaeta Sternaspidae written by Kelly Sendall and published by PenSoft Publishers LTD. This book was released on 2013-04-08 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: The peanut-shaped sternaspid polychaetes have been known since 1760 when Plancus named them as Mentula cucurbitacea marina. Sternaspids are common and abundant in soft bottoms. Some authors suggested that only one species should be recognized, whereas others regard a few species very widely distributed and variable depths. Delineating species was problematic; the ventro-caudal shield was disregarded or barely used for identifying species. In this contribution the ventral shield is evaluated and its diagnostic potential is confirmed. The revision of Sternaspis is based upon type or topotype materials. Sternaspid body, introvert hooks and shield show three distinct patterns: two genera have 7 abdominal segments and tapered introvert hooks, and one genus has 8 abdominal segments and spatulate introvert hooks. The ventro-caudal shield has 3 different patterns: stiff with ribs, and sometimes concentric lines, stiff with feebly-defined ribs but no concentric lines, and soft with firmly adhered sediment particles. Sternaspis is restricted to include species with 7 abdominal segments, falcate introvert hooks, and stiff shields, often exhibiting radial ribs, concentric lines or both. Two new genera incorporate the remaining species: Caulleryaspis has falcate introvert hooks, 7 abdominal segments, and soft shields with sediment particles firmly adhered on them. Petersenaspis has spatulate introvert hooks, 8 abdominal segments, and stiff shields with poorly-defined ribs but no concentric line. The geographic range of most species is smaller than previously indicated. Keys to genera and to all species are also included.
Download or read book An Annotated Checklist of the Marine Macroinvertebrates of Alaska written by David Thomas Drumm and published by . This book was released on 2016 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: A current and comprehensive species list of marine invertebrates of Alaska is essential for effective management of living marine resources, sustainable fisheries, conservation of vulnerable ecosystems, and advancement of our knowledge of biodiversity and ecosystem function. Furthermore, the most current checklist available to resource managers and scientists is quite dated and limited in that it only includes the marine invertebrates of the southern coast of Alaska to California. Since that checklist was published, many new species have been described, many range extensions have been discovered, and considerable changes in higher-level systematics have been made. The checklist that we have compiled lists 3708 species and presents for each species the currently accepted scientific name and its significant synonyms, common names, type localities, geographic and depth distributions, a general statement of abundance in Alaska when known (e.g., rare, uncommon, common, abundant), and general remarks. It includes species recorded in the marine waters of Alaska from the intertidal zone, continental shelf, and upper continental slope to abyssal depths, from the Beaufort Sea at the Arctic border with Yukon, Canada; the eastern Chukchi Sea, the eastern Bering Sea, the Aleutian Islands to the western border with Russia; and the Gulf of Alaska to Dixon Entrance at the southern border with British Columbia. Sound and reliable taxonomic identifications are necessary to monitor and predict changes in the distribution and abundance of marine species. The current status and future direction of the study of Alaskan marine invertebrate biodiversity are briefly discussed.
Download or read book Life in the World s Oceans written by Alasdair McIntyre and published by John Wiley & Sons. This book was released on 2011-06-09 with total page 623 pages. Available in PDF, EPUB and Kindle. Book excerpt: Life in the World's Oceans: Diversity, Abundance and Distribution is a true landmark publication. Comprising the synthesis and analysis of the results of the Census of Marine Life this most important book brings together the work of around 2000 scientists from 80 nations around the globe. The book is broadly divided into four sections, covering oceans past, oceans present, oceans future and a final section covering the utilisation of the data which has been gathered, and the coordination and communication of the results. Edited by Professor Alasdair Mcintyre, Marine Life is a book which should find a place on the shelves of all marine scientists, ecologists, conservation biologists, oceanographers, fisheries scientists and environmental biologists. All universities and research establishments where biological, earth and fisheries science are studied and taught should have copies of this essential book on their shelves. A true landmark publication One of the most important marine science books ever published Contributions from many world leading researchers Synthesis of a huge amount of important data Represents the culmination of 10 years' research by 2000 scientists from 80 countries
Download or read book Comprehensive Bibliography written by and published by . This book was released on 1988 with total page 764 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Comprehensive Bibliography written by Outer Continental Shelf Environmental Assessment Program and published by . This book was released on 1984 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book CENFOR written by United States. Bureau of the Census and published by . This book was released on 1971 with total page 1326 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Outer Continental Shelf Environmental Assessment Program Final Reports of Principal Investigators written by and published by . This book was released on 1984 with total page 660 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Ecology of Deep Sea Hydrothermal Vents written by Cindy Lee Van Dover and published by Princeton University Press. This book was released on 2021-11-09 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt: Teeming with weird and wonderful life--giant clams and mussels, tubeworms, "eyeless" shrimp, and bacteria that survive on sulfur--deep-sea hot-water springs are found along rifts where sea-floor spreading occurs. The theory of plate tectonics predicted the existence of these hydrothermal vents, but they were discovered only in 1977. Since then the sites have attracted teams of scientists seeking to understand how life can thrive in what would seem to be intolerable or extreme conditions of temperature and fluid chemistry. Some suspect that these vents even hold the key to understanding the very origins of life. Here a leading expert provides the first authoritative and comprehensive account of this research in a book intended for students, professionals, and general readers. Cindy Lee Van Dover, an ecologist, brings nearly two decades of experience and a lively writing style to the text, which is further enhanced by two hundred illustrations, including photographs of vent communities taken in situ. The book begins by explaining what is known about hydrothermal systems in terms of their deep-sea environment and their geological and chemical makeup. The coverage of microbial ecology includes a chapter on symbiosis. Symbiotic relationships are further developed in a section on physiological ecology, which includes discussions of adaptations to sulfide, thermal tolerances, and sensory adaptations. Separate chapters are devoted to trophic relationships and reproductive ecology. A chapter on community dynamics reveals what has been learned about the ways in which vent communities become established and why they persist, while a chapter on evolution and biogeography examines patterns of species diversity and evolutionary relationships within chemosynthetic ecosystems. Cognate communities such as seeps and whale skeletons come under scrutiny for their ability to support microbial and invertebrate communities that are ecologically and evolutionarily related to hydrothermal faunas. The book concludes by exploring the possibility that life originated at hydrothermal vents, a hypothesis that has had tremendous impact on our ideas about the potential for life on other planets or planetary bodies in our solar system.
Download or read book Proceedings of a Synthesis Meeting written by and published by . This book was released on 1981 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: Relates to U.S. Dept. of the Interior's proposed sale 71, the second major Beaufort Sea lease sale. Sale 71 area located on Alaskan arctic coast. Two sections: characterization of Sale 71 environments, and interdisciplinary process analyses, impact predictions, and issue discussions.
Download or read book The Benthos Zonation of the Disko Fjord West Greenland written by Michael K. Schmid and published by Museum Tusculanum Press. This book was released on 1993 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sarsia written by and published by . This book was released on 1980 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Assessment of the U S Outer Continental Shelf Environmental Studies Program written by National Research Council and published by National Academies Press. This book was released on 1992-02-01 with total page 163 pages. Available in PDF, EPUB and Kindle. Book excerpt: Assessment of the U.S. Outer Continental Shelf Environmental Studies Program reviews the ecological studies done by the Environmental Studies Program of the Minerals Management Service. This program, which has spent $10 million a year on ecological studies in recent years, is designed to provide information to predict and manage the environmental effects of outer continental shelf oil and gas activities. The book considers studies on marine mammals and endangered species, birds, benthic organisms, fisheries, and marine ecosystems and makes recommendations for future studies.
Download or read book Gunneria written by and published by . This book was released on 1986 with total page 790 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Taxonomic Atlas of the Benthic Fauna of the Santa Maria Basin and Western Santa Barbara Channel written by Karen D. Green and published by . This book was released on 1993 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mollusca Caudofoveata written by Luitfried von Salvini-Plawen and published by . This book was released on 1975 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aquatic Sciences and Fisheries Abstracts written by and published by . This book was released on 1980-10 with total page 1194 pages. Available in PDF, EPUB and Kindle. Book excerpt:
