Download or read book New Species of Zygnemataceae written by and published by . This book was released on 1934 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Genus Spirogyra Chlorophyceae Zygnemataceae in West Bengal India written by Amarendra Nath Kargupta and published by Gebruder Borntraeger Verlagsbuchhandlung. This book was released on 1992 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fifty taxa including 7 new species (S.benghalensis sp. nov., S.islamii sp.nov., S.kamatii sp.nov., S.pseudogauthieri sp.nov., S.subformosa sp.nov., S.subverrucosa sp.nov., S.yamagishli sp.nov.) and 3 new varieties (S.corrugata Transeau var. santiniketanensis var.nov., S.minor (Schmidle) Transeau var. chapmanii var.nov., S.polymorpha Kirchner var. bolpurensis var.nov.) of the genus Spirogyra Link are described in the present paper. Seven species (S.chekiangensis Jao, S.hopeiensis Jao, S.minutifossa.Jao, S.paraguayensis Borge, S.rhizopus Jao, S.shantungensis Li and S.ternata Ripart) are recorded for the first time from Indian subcontinent and 27 species are recorded as additions to West Bengal algae. A key to all these taxa is framed and their distribution in India and abroad is discussed.
Download or read book Algal Flora of Bihar written by A. N. Kargupta and published by . This book was released on 2004 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph covers a comprehensive review of Indian works on Zygnemataceae updating the list of new taxa described so far record of originally described species from Indian habitats and adition of taxa to Indian algae.
Download or read book Taxonomy of the Texas Zygnemataceae written by Floyd Francis Davidson and published by . This book was released on 1941 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Species of the Genus Spirogyra from Kerala India written by K. Usha Devi and published by Gebruder Borntraeger Verlagsbuchhandlung. This book was released on 1994 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Freshwater Algae written by Edward G. Bellinger and published by John Wiley & Sons. This book was released on 2011-09-20 with total page 379 pages. Available in PDF, EPUB and Kindle. Book excerpt: Freshwater Algae: Identification and Use as Bioindicators provides a comprehensive guide to temperate freshwater algae, with additional information on key species in relation to environmental characteristics and implications for aquatic management. The book uniquely combines practical material on techniques and water quality management with basic algal taxonomy and the role of algae as bioindicators. Freshwater Algae: Identification and Use as Bioindicators is divided into two parts. Part I describes techniques for the sampling, measuring and observation of algae and then looks at the role of algae as bioindicators and the implications for aquatic management. Part II provides the identification of major genera and 250 important species. Well illustrated with numerous original illustrations and photographs, this reference work is essential reading for all practitioners and researchers concerned with assessing and managing the aquatic environment.
Download or read book Applications of Non Pollen Palynomorphs written by F. Marret and published by Geological Society of London. This book was released on 2021-10-29 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: This long-awaited book about non-pollen palynomorphs (NPPs) aims to cover gaps in our knowledge of these abundant but understudied palynological remains. NPPs, such as fungal spores, testate amoebae, dinoflagellate cysts, acritarchs and animal remains, are routinely recovered from palynological preparations of marine or terrestrial material, from Proterozoic to recent geological times. This book gives the reader a comprehensive overview of the different types of NPPs, with examples from diverse time periods and environments. It provides guidance on sample preparation to maximize the recovery of these NPPs, detailed information on their diversity and ecological affinity, clarification on the nomenclature and demonstrates their value as environmental indicators. This volume will become the reference guide for any student, academic or practitioner interested in everything else in their palynological preparations.
Download or read book Periodic Oscillations in Lake Erie written by Frederick Hartzler Krecker and published by . This book was released on 1928 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Freshwater Biodiversity written by David Dudgeon and published by Cambridge University Press. This book was released on 2020-05-21 with total page 517 pages. Available in PDF, EPUB and Kindle. Book excerpt: Growing human populations and higher demands for water impose increasing impacts and stresses upon freshwater biodiversity. Their combined effects have made these animals more endangered than their terrestrial and marine counterparts. Overuse and contamination of water, overexploitation and overfishing, introduction of alien species, and alteration of natural flow regimes have led to a 'great thinning' and declines in abundance of freshwater animals, a 'great shrinking' in body size with reductions in large species, and a 'great mixing' whereby the spread of introduced species has tended to homogenize previously dissimilar communities in different parts of the world. Climate change and warming temperatures will alter global water availability, and exacerbate the other threat factors. What conservation action is needed to halt or reverse these trends, and preserve freshwater biodiversity in a rapidly changing world? This book offers the tools and approaches that can be deployed to help conserve freshwater biodiversity.
Download or read book Pure Cultures of Algae written by E. G. Pringsheim and published by . This book was released on 1967 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Canadian Journal of Botany written by and published by . This book was released on 1989 with total page 866 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Contribution written by Ohio State University. Franz Theodore Stone Institute of Hydrobiology, Put-in-Pay and published by . This book was released on 1928 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book New Zealand Journal of Botany written by and published by . This book was released on 2004-03 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Algal Ecology written by and published by Academic Press. This book was released on 1996-06-03 with total page 781 pages. Available in PDF, EPUB and Kindle. Book excerpt: Algae are an important component of aquatic benthic ecosystems because they reflect the health of their environment through their density, abundance, and diversity. This comprehensive and authoritative text is divided into three sections to offer complete coverage of the discussion in this field. The first section introduces the locations of benthic algae in different ecosystems, like streams, large rivers, lakes, and other aquatic habitats. The second section is devoted to the various factors, both biotic and abiotic, that affect benthic freshwater algae. The final section of the book focuses on the role played by algae in a variety of complex freshwater ecosystems. As concern over environmental health escalates, the keystone and pivotal role played by algae is becoming more apparent. This volume in the Aquatic Ecology Series represents an important compilation of the latest research on the crucial niche occupied by algae in aquatic ecosystems. Presents algae as the important player in relation to environmental health Prepared by leading authorities in the field Includes comprehensive treatment of the functions of benthic algae as well as the factors that affect these important aquatic organisms Acts as an important reference for anyone interested in understanding and managing freshwater ecosystems
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1966 with total page 1542 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biodiversity Hotspot of the Himalaya written by T. Pullaiah and published by CRC Press. This book was released on 2024-07-05 with total page 539 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biodiversity is declining at an alarming rate due to anthropogenic activities around the world. This book is the second volume in the new series Biodiversity Hotspots of the World, which highlights the 36 hotspot regions of the world, regions that have been designated as reaping maximum benefit from preservation efforts. This series is our humble attempt to document these hotspots as a conservation and preservation measure. The concise volumes in this series focus on the most interesting and important properties of these hotspots, covering physiography and climatology; vegetation and forest types; amphibian and reptile biodiversity; genetic diversity of crops, plants, fishes, butterflies, insects, birds, mammals, angiosperms, and gymnosperms; and much more. And of course, the unique threats and conservation efforts for the areas are addressed as well. The Himalayan Mountains are the highest mountain range in the world and include Mount Everest as well as eight other highest peaks of the world. While it is difficult to document the biodiversity of this inhospitable terrain, we do know that out of the 9,000 different species of plants recorded in the area, 3,500 plants are endemic to the Eastern Himalaya region. Anthropogenic activities including deforestation, fragmentation of habitats, pollution, high population, climate change, and poaching of wildlife pose serious threats to the biodiversity of the region. The highlands have exceptionally rich biodiversity, high endemism, and over 160 globally threatened species, including the densest population of Bengal tigers and the three largest herbivores on the continent: the Asian elephant, greater one-horned rhinoceros, and wild water buffalo. The region boasts the world’s richest counts of alpine flora within its temperate broad-leaved forests, with a total of 10,000 species of plants. This volume, Biodiversity Hotspot of the Himalayas, as well as the other volumes in this series, will be essential resources for researchers and practitioners in the fields of conservation biology, ecology, and evolution as the series concisely records the existing biodiversity of these hotspots of the world.
Download or read book Freshwater Algae of North America written by John D. Wehr and published by Elsevier. This book was released on 2015-06-05 with total page 1067 pages. Available in PDF, EPUB and Kindle. Book excerpt: Freshwater Algae of North America: Ecology and Classification, Second Edition is an authoritative and practical treatise on the classification, biodiversity, and ecology of all known genera of freshwater algae from North America. The book provides essential taxonomic and ecological information about one of the most diverse and ubiquitous groups of organisms on earth. This single volume brings together experts on all the groups of algae that occur in fresh waters (also soils, snow, and extreme inland environments). In the decade since the first edition, there has been an explosion of new information on the classification, ecology, and biogeography of many groups of algae, with the use of molecular techniques and renewed interest in biological diversity. Accordingly, this new edition covers updated classification information of most algal groups and the reassignment of many genera and species, as well as new research on harmful algal blooms. Extensive and complete Describes every genus of freshwater algae known from North America, with an analytical dichotomous key, descriptions of diagnostic features, and at least one image of every genus. Full-color images throughout provide superb visual examples of freshwater algae Updated Environmental Issues and Classifications, including new information on harmful algal blooms (HAB) Fully revised introductory chapters, including new topics on biodiversity, and taste and odor problems Updated to reflect the rapid advances in algal classification and taxonomy due to the widespread use of DNA technologies
