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Author | : John N.A. Hooper |
Publisher | : Springer Science & Business Media |
Total Pages | : 1779 |
Release | : 2012-12-06 |
Genre | : Science |
ISBN | : 1461507472 |
Download Systema Porifera Book in PDF, ePub and Kindle
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.
Author | : Werner E. G. Müller |
Publisher | : Springer Science & Business Media |
Total Pages | : 273 |
Release | : 2012-12-06 |
Genre | : Science |
ISBN | : 3642555195 |
Download Sponges (Porifera) Book in PDF, ePub and Kindle
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.
Author | : Jean Vacelet |
Publisher | : Springer Science & Business Media |
Total Pages | : 331 |
Release | : 2013-06-29 |
Genre | : Science |
ISBN | : 3642708927 |
Download Taxonomy of Porifera Book in PDF, ePub and Kindle
Although sponges are one of the major components of littoral ecosystems, their systematics obviously lags behind that of the majority of other groups of marine invertebrates. Also the evolutionary trends in these most primitive of the Metazoans are poorly understood. The confused state of their taxonomy and the difficulties with their identification prevent their use in ecological studies. The emphasis of interest presently seems to have shifted towards chemistry, but many of the hundreds of interesting chemicals recently described in sponges pro bably have been found in mistakenly or imprecisely identified animals. This situ ation will become worse in the next few years, when a number of experts will retire and will not be replaced by new ones, owing to the difficulties that the science of systematics is facing in most countries - as exemplified during this meeting by an informal discussion on the endangered future of European Museums. Under these circumstances, it is the responsability of present sponge taxono mists to leave a less confused state and tools such as simple fauna or computerized data bases to generations following. These tools do not exist even in one of the best studied areas, the North-Eastern Atlantic (including the Mediterranean Sea).
Author | : Narayan Changder |
Publisher | : CHANGDER OUTLINE |
Total Pages | : 138 |
Release | : 2024-03-18 |
Genre | : Science |
ISBN | : |
Download PORIFERA Book in PDF, ePub and Kindle
Dive into the intriguing world of poriferans with 'Porifera: MCQs for Marine Biology Enthusiasts.' This comprehensive collection of multiple-choice questions is tailored for enthusiasts and aspiring marine biologists, offering an immersive journey through the diverse and fascinating phylum of Porifera. From understanding their unique anatomy and ecological roles to exploring their filter-feeding mechanisms and symbiotic relationships, embark on a captivating exploration of these remarkable marine organisms. Whether you're a student delving into marine biology or a curious explorer fascinated by the wonders of the ocean, these quizzes provide a stimulating and educational experience. Immerse yourself in the diversity of poriferans and deepen your understanding of their importance in marine ecosystems and scientific research with this essential resource.
Author | : Alexander V. Ereskovsky |
Publisher | : Springer Science & Business Media |
Total Pages | : 382 |
Release | : 2010-03-27 |
Genre | : Science |
ISBN | : 9048185750 |
Download The Comparative Embryology of Sponges Book in PDF, ePub and Kindle
One of the major questions in the evolution of animals is the transition from unicellular to multicellular organization, which resulted in the emergence of Metazoa through a hypothetical Urmetazoa. The Comparative Embryology of Sponges contains abundant original and literary data on comparative embryology and morphology of the Porifera (Sponges), a group of 'lower Metazoa'. On the basis of this material, original typization of the development of Sponges is given and the problems concerning origin and evolution of Porifera and their ontogenesis are discussed. A morphogenetic interpretation of the body plan development during embryogenesis, metamorphosis and asexual reproduction in Sponges is proposed. Special attention is given to the analysis of characteristic features of the ontogenesis in Porifera. The book pursues three primary goals: 1) generalization of all existing information on individual development of sponges, its classification and a statement according to taxonomical structure of Porifera; 2) revealing of heterogeneity of morphogenesis and peculiarities of ontogeneses in various clades of Porifera, and also their correlations with the organization, both adult sponges, and their larvae; 3) revealing homology of morphogeneses in both Porifera and Eumetazoa, testifying to the general evolutionary roots of multicellular animals, and peculiar features of sponges' morphogeneses and ontogenesis. This book will be of interest to embryologists, zoologists, morphologists and researchers in evolutionary biology.
Author | : Dr Paul Anderson Theriault BSc, ND, Naturopathic Doctor |
Publisher | : Lulu.com |
Total Pages | : 124 |
Release | : 2017-08-13 |
Genre | : Science |
ISBN | : 1387134515 |
Download The Table of Animals: The Porifera, Ctenophora, and Cnidaria Book in PDF, ePub and Kindle
The first paperback volume of the Table of Animals Project, containing the Porifera, Cnidaria and Ctenophora. Detailed information on the biology, ecology, evolution, and taxonomy is given on each phyla, as well as information on their role within human culture. The characteristics of each group within Homeopathy are discussed extensively from a developmental perspective, informed by the extensive triturations performs by the author. Clinical information and information from a sensation perspective are also presented with contributions from Dr Ghanshyam Kalathia. Triturations of Badiaga, Corallium rubrum, and Mnemiopsis macrydi, the first Ctenophore ever potentised or triturated within Homeopathy.
Author | : William Lundbeck |
Publisher | : |
Total Pages | : 734 |
Release | : 1928 |
Genre | : Danish Ingolf-Expedition, 1895-1896 |
ISBN | : |
Download Porifera Book in PDF, ePub and Kindle
Author | : A. Dendy |
Publisher | : |
Total Pages | : 12 |
Release | : 1924 |
Genre | : Canadian Arctic Expedition |
ISBN | : |
Download Porifera Book in PDF, ePub and Kindle
Author | : Eugen Korschelt |
Publisher | : |
Total Pages | : 548 |
Release | : 1895 |
Genre | : Embryology |
ISBN | : |
Download Text-book of the Embryology of Invertebrates: Porifera, Cnidaria, Ctenophora, Vermes, Enteropneusta, Echinodermata Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : 204 |
Release | : 1902 |
Genre | : Scientific expeditions |
ISBN | : |
Download The Danish Ingolf-expedition: Porifera, 1-3 by W. Lundbeck. Hexactinellida by M. Burton Book in PDF, ePub and Kindle