Download or read book Part 1 Taxonomy and Distribution of the Fresh water Sponges Spongillidae of Michigan written by Marcus Calvin Old and published by . This book was released on 1933 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Taxonomy and distribution of the fresh water sponges Spongillidae of Michigan written by Marcus Calvin Old and published by . This book was released on 1933 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Taxonomy and Distribution of the Fresh water Sponges Spongillidae of Michigan written by Marcus C. Old and published by . This book was released on 1930 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Taxonomy and Distribution of the Fresh water Sponges Spongillidas of Michigan written by Marcus Calvin Old and published by . This book was released on 1932 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Taxonomy and Distribution of the Fresh water Sponges spongillidae of Michigan Environmental Selection of the Fresh water Sponges spongillidae of Michigan Contribution to the Biology of Fresh water Sponges spongillidae Observations on the Sisyridae neuroptera Marcus C Old a Dissertation for the Degree of Doctor of Philosophy in the University of Michigan written by Marcus C. Old and published by . This book was released on 1932 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Distribution Taxonomy and Ecology of Fresh water Sponges Spongillidae of Muskegon County Michigan written by Rodger W. Tharp and published by . This book was released on 1971 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Taxonomy and Distirbution of the Fresh Water Sponges written by Marcus Calvin Old and published by . This book was released on 1933 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Morphology and Distribution of Fresh water Sponges Porifera Spongillidae of Marquette County Michigan written by Susan E. Uecke and published by . This book was released on 1976 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Methods for Collection and Analysis of Aquatic Biological and Microbiological Samples written by Phillip E. Greeson and published by . This book was released on 1977 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Techniques of Water resources Investigations of the United States Geological Survey written by and published by . This book was released on 1987 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Thorp and Covich s Freshwater Invertebrates written by James H. Thorp and published by Elsevier. This book was released on 2015-12-28 with total page 764 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thorp and Covich's Freshwater Invertebrates: Keys to Nearctic Fauna, Fourth Edition presents a comprehensive revision and expansion of this trusted professional reference manual and educational textbook—from a single North American tome into a developing multivolume series covering inland water invertebrates of the world. Readers familiar with the first three editions will welcome this new volume. The series, now entitled Thorp and Covich’s Freshwater Invertebrates, (edited by J.H. Thorp), began with Volume I: Ecology and General Biology, (edited by J.H. Thorp and D.C. Rogers). It now continues in Volume II with taxonomic coverage of inland water invertebrates of the Nearctic zoogeographic region. As in previous editions, all volumes of the fourth edition are designed for multiple uses and levels of expertise by professionals in universities, government agencies, and private companies, as well as by undergraduate and graduate students. Features zoogeographic coverage for all of North America, south to the general area of the Tropic of Cancer, and Greenland and Bermuda Provides keys to families of freshwater insects Provides keys to all other inland water invertebrates at the taxonomic level appropriate for the current scientific knowledge Includes multiple taxonomic keys in each chapter that progress from higher to lower taxonomic levels, thereby allowing users to work up to their level of need and expertise Presents additional material in each chapter on group introduction, limitations to the keys, terminology and morphology, material preparation and preservation, and references
Download or read book Biodiversity of Freshwater Sponges Porifera written by K. L. Evans and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bulletin written by United States National Museum and published by . This book was released on 1968 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Comprehensive Revision of a Worldwide Collection of Freshwater Sponges Porifera Spongillidae Classic Reprint written by J. T. Penney and published by Forgotten Books. This book was released on 2016-09-02 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 chie y 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."
Download or read book Taxonomy Distribution and Ecology of the Freshwater Sponges Porifera Spongillidae and Bryozoans Ectoprocta of Eastern Canada written by Anthony Ricciardi and published by . This book was released on 1992 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Specimens of freshwater bryozoans (Ectoprocta) and sponges (Porifera: Spongillidae), two of the most poorly known faunal groups in Canada, were obtained from various locations in Ontario, Quebec, New Brunswick, Nova Scotia, Prince Edward Island, and Newfoundland. A total of 14 species of bryozoans and 15 species of sponges were identified. In 31 cases, these species were recorded from a province for the first time. Species new to Canada include the bryozoans Lophopodella carteri, Plumatella orbisperma, and Pottsiella erecta, and the sponges Radiospongilla crateriformis, Spongilla aspinosa, and Trochospongilla horrida. The morphology, taxonomy, distribution, and ecology of each species are examined. Several taxonomic revisions are made. Eunapius mackayi and Plumatella orbisperma are redescribed. Spongilla heterosclerifera, considered an endangered species, is shown to be a species mixture. Taxonomic keys to Eastern Canadian species of freshwater bryozoans and sponges are presented. New limits of tolerance to pH, calcium and magnesium levels, and water temperature are established for several species." --
