Sponges Porifera
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Sponges Porifera
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Author : Werner E. G. Müller
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Sponges Porifera written by Werner E. G. Müller and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
Sponges (phylum Porifera) are known to be very rich sources for bioactive compounds, mainly secondary metabolites. Main efforts are devoted to cell- and mariculture of sponges to assure a sustainable exploitation of bioactive compounds from biological starting material. These activities are flanked by improved technologies to cultivate bacteria and fungi which are associated with the sponges. It is the hope that by elucidating the strategies of interaction between microorganisms and their host (sponge), by modern cell and molecular biological methods, a more comprehensive cultivation of the symbiotic organisms will be possible. The next step in the transfer of knowledge to biotechnological applications is the isolation, characterization and structural determination of the bioactive compounds by sophisticated chemical approaches.
Comprehensive Revision Of A Worldwide Collection Of Freshwater Sponges
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Author : James Theophilus Penney
language : en
Publisher:
Release Date : 1968
Comprehensive Revision Of A Worldwide Collection Of Freshwater Sponges written by James Theophilus Penney and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1968 with Freshwater animals categories.
Racek seems to have authored much of this work after the death of J. T. Penney and undertook a study and review of Penny's huge colleciton of material and unpublished data at the recommendation of B. Theodore Cole of the University of South Carolina. In view of the voluminous material available, Racek found it imperative to revise all true gemmule-producing species rather than elaborate Penny's outlined account of the Meyeninae and as a result of the study, demonstrated the fallacy of a subdivision of the family Spongillidae by using gemmosclere characteristics.
Systema Porifera
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Author : John N.A. Hooper
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Systema Porifera written by John N.A. Hooper and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
Research whilst compiling this book has uncovered a fauna about twice the size as that previously published in the literature and consequently Systema Porifera revises and stabilizes the systematics of the phylum to accommodate this new knowledge in a contemporary framework. Practical tools (key illustrations, descriptions of character) are provided to facilitate the assignment of approximately 680 extant and 100 fossil genera. Systema Porifera is unique making sponge taxonomy widely available at the practical level of classification (genera, families, order). It is a taxonomic revision of sponges and spongiomorphis (such as sphinctozoans and archaeocyathans) based on re-evaluation of type materials and evidence. It is also a practical guide to sponge identification providing descriptions and illustrations of characters and interpretation of their importance to systematics. Systema Porifera addresses many long standing nomenclatural problems and provides a sound baseline for future debate on sponges and their place in time and space. Systema Porifera describes 3 classes, 7 subclasses, 24 orders, 127 families and 682 valid genera of extant sponges (with over 1600 nominal generic names and an additional 500 invalid names treated). Treatment of the fossil fauna is less comprehensive or critical, although 6 classes, 30 orders, 245 families and 998 fossil genera are mentioned. Keys to all recent and many fossil taxa are provided.
Sponges
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Author : Patricia R. Bergquist
language : en
Publisher: Univ of California Press
Release Date : 1978-01-01
Sponges written by Patricia R. Bergquist and has been published by Univ of California Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1978-01-01 with Science categories.
Comprehensive Revision Of A Worldwide Collection Of Freshwater Sponges Porifera Spongillidae
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Author : J. T. PENNEY
language : en
Publisher:
Release Date : 2018
Comprehensive Revision Of A Worldwide Collection Of Freshwater Sponges Porifera Spongillidae written by J. T. PENNEY and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018 with categories.
Comprehensive Revision Of A Worldwide Collection Of Freshwater Sponges Porifera Spongillidae Classic Reprint
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Author : J. T. Penney
language : en
Publisher: Forgotten Books
Release Date : 2018-02-18
Comprehensive Revision Of A Worldwide Collection Of Freshwater Sponges Porifera Spongillidae Classic Reprint written by J. T. Penney and has been published by Forgotten Books this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-02-18 with Science categories.
Excerpt from Comprehensive Revision of a Worldwide Collection of Freshwater Sponges (Porifera, Spongillidae) In spite of the fact that serious scientific efforts in the taxonomic study of freshwater sponges were begun in the mid-19th century, and that a great number of subsequent investigators have contributed a massive amount of additional descriptive information, the taxonomy of this group has remained in a most chaotic state. Following Bowerbank's (1863) initial revision of all species of Spongilla, Gray (1867) was first to establish useful criteria for their generic differen tiation and to erect six new genera in addition to Spongilla Lamarck. Unfortunately, this system was criticized and its validity questioned by Carter (1881a), who claimed that Gray established his new genera without having seen Bowerbank's material upon which they were erected. Although fully unjustified in doing so, Carter (1881a) alto gether ignored Gray's existing generic names and devised his own system for the inclusion of Bowerbank's species and subsequently collected material. Thus it happened that Gray's well-established genera fell into complete obscurity for many decades, and Carter's system became firmly established, without being seriously challenged by any subsequent taxonomist. From the turn of this century, several attempts were made to revise comprehensively the status of the ever increasing numbers of species. After the publication of the first bibliography of all freshwater sponges by Weltner it was chiefly Annandale (1906 - 1919) who began to build the foundations to an improved and modernized knowledge of spongillid taxonomy. Annandale reestablished some of Gray's generic names, at least at a subgeneric level, and added a number of well-defined new genera to the conglomerate systems of Gray and Carter. Additional revisions were subsequently undertaken by Gee (1926 Schroder (1926 and Arndt (1923 to name just the most important contributors. Generic revisions were attempted by De Laubenfels (1936) and Jewell However, in spite of the fact that all these investigations have certainly helped to overcome a number of taxonomic difficulties, they seemed to have little effect on the stability of taxonomic nomenclature. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Diversity Of Sponges Porifera From Cryptic Habitats On The Belize Barrier Reef Near Carrie Bow Cay
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Author :
language : en
Publisher:
Release Date : 2014
Diversity Of Sponges Porifera From Cryptic Habitats On The Belize Barrier Reef Near Carrie Bow Cay written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with categories.
The Caribbean barrier reef near Carrie Bow Cay, Belize, has been a focus of Smithsonian Institution (Washington) reef and mangrove investigations since the early 1970s. Systematics and biology of sponges (Porifera) were addressed by several researchers but none of the studies dealt with cryptic habitats, such as the shaded undersides of coral rubble, reef crevices, and caves, although a high species diversity was recognized and samples were taken for future reference and study. This paper is the result of processing samples taken between 1972 and 2012. In all, 122 species were identified, 14 of them new (including one new genus). The new species are Tetralophophora (new genus) mesoamericana, Geodia cribrata, Placospongia caribica, Prosuberites carriebowensis, Timea diplasterina, Timea oxyasterina, Rhaphidhistia belizensis, Wigginsia curlewensis, Phorbas aurantiacus, Myrmekioderma laminatum, Niphates arenata, Siphonodictyon occultum, Xestospongia purpurea, and Aplysina sciophila. We determined that about 75 of the 122 cryptic sponge species studied (61%) are exclusive members of the sciophilic community, 47 (39 %) occur in both, light-exposed and shaded or dark habitats. Since we estimate the previously known sponge population of Carrie Bow reefs and mangroves at about 200 species, the cryptic fauna makes up 38 % of total diversity.
Comprehensive Revision Of A Worldwide Collection Of Freshwater Sponges Porifera
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Author : J. T. Penney
language : en
Publisher: Trieste Publishing
Release Date : 2017-07-26
Comprehensive Revision Of A Worldwide Collection Of Freshwater Sponges Porifera written by J. T. Penney and has been published by Trieste Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-07-26 with Social Science categories.
Trieste Publishing has a massive catalogue of classic book titles. Our aim is to provide readers with the highest quality reproductions of fiction and non-fiction literature that has stood the test of time. The many thousands of books in our collection have been sourced from libraries and private collections around the world.The titles that Trieste Publishing has chosen to be part of the collection have been scanned to simulate the original. Our readers see the books the same way that their first readers did decades or a hundred or more years ago. Books from that period are often spoiled by imperfections that did not exist in the original. Imperfections could be in the form of blurred text, photographs, or missing pages. It is highly unlikely that this would occur with one of our books. Our extensive quality control ensures that the readers of Trieste Publishing's books will be delighted with their purchase. Our staff has thoroughly reviewed every page of all the books in the collection, repairing, or if necessary, rejecting titles that are not of the highest quality. This process ensures that the reader of one of Trieste Publishing's titles receives a volume that faithfully reproduces the original, and to the maximum degree possible, gives them the experience of owning the original work.We pride ourselves on not only creating a pathway to an extensive reservoir of books of the finest quality, but also providing value to every one of our readers. Generally, Trieste books are purchased singly - on demand, however they may also be purchased in bulk. Readers interested in bulk purchases are invited to contact us directly to enquire about our tailored bulk rates.
Sponges
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Author : Lisa Goudie
language : en
Publisher: Museum Victoria
Release Date : 2013
Sponges written by Lisa Goudie and has been published by Museum Victoria this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with Science categories.
We might think of sponges as bathroom objects but the real living animals are far more interesting. They come in all shapes and sizes, occur in all oceans of the world, and have amazing lives. Sponges have lived in our oceans for 600 million years. Ancient forms even built reefs bigger than the Great Barrier Reef. Today, sponges help clean our oceans, are experts are chemical warfare and can rebuild themselves after being torn apart. Some even live for 2000 years. There is still much to learn about the diversity and biology of sponges in southern Australian waters, with many species still waiting for formal scientific description. This guide introduces naturalists, beachcombers, divers and others to sponge species commonly encountered in southern Australia.
Advances In Sponge Science Physiology Chemical And Microbial Diversity Biotechnology
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Author : Mikel A. Becerro
language : en
Publisher: Academic Press
Release Date : 2012-07-30
Advances In Sponge Science Physiology Chemical And Microbial Diversity Biotechnology written by Mikel A. Becerro and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-07-30 with Science categories.
The authors "have intended to make the forefront of sponge research easily accessible to the nonspecialist, illustrating the state of the art of the field,and presenting current controversial issues. For the specialist, we wanted this monograph to be a handy, valuable update on the most recent advances in sponge science."--p. x