Modern Trends In Diatom Identification

Author : Gabriel Cristóbal,Saúl Blanco,Gloria Bueno
Publisher : Springer Nature
Page : 294 pages
File Size : 52,8 Mb
Release : 2020-05-28
Category : Science
ISBN : 9783030392123

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Modern Trends in Diatom Identification by Gabriel Cristóbal,Saúl Blanco,Gloria Bueno Pdf

High-resolution images of phytoplankton cells such as diatoms or desmids, which are useful for monitoring water quality, can now be provided by digital microscopes, facilitating the automated analysis and identification of specimens. Conventional approaches are based on optical microscopy; however, manual image analysis is impractical due to the huge diversity of this group of microalgae and its great morphological plasticity. As such, there is a need for automated recognition techniques for diagnostic tools (e.g. environmental monitoring networks, early warning systems) to improve the management of water resources and decision-making processes. Describing the entire workflow of a bioindicator system, from capture, analysis and identification to the determination of quality indices, this book provides insights into the current state-of-the-art in automatic identification systems in microscopy.

Author : Hans Du Buf
Publisher : World Scientific
Page : 336 pages
File Size : 40,7 Mb
Release : 2002
Category : Science
ISBN : 9810248865

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Automatic Diatom Identification by Hans Du Buf Pdf

This is the first book to deal with automatic diatom identification. It provides the necessary background information concerning diatom research, useful for both diatomists and non-diatomists. It deals with the development of electronic databases, image preprocessing, automatic contour extraction, the application of existing contour and ornamentation features and the development of new ones, as well as the application of different classifiers (neural networks, decision trees, etc.). These are tested using two image sets: (i) a very difficult set of Sellaphora pupula with 6 demes and 120 images; (ii) a mixed genera set with 37 taxa and approximately 800 images. The results are excellent, and recognition rates well above 90% have been achieved on both sets. The results are compared with identification rates obtained by human experts. One chapter of the book deals with automatic image capture, i.e. microscope slide scanning at different resolutions using a motorized microscope stage, autofocusing, multifocus fusion, and particle screening to select only diatoms and to reject debris. This book is the final scientific report of the European ADIAC project (Automatic Diatom Identification and Classification), and it lists the web-sites with the created public databases and an identification demo.

Author : Archana Tiwari,Ashok Pandey,Pau-Loke Show,Parameswaran Binod
Publisher : CRC Press
Page : 189 pages
File Size : 44,8 Mb
Release : 2023-09-14
Category : Science
ISBN : 9781000928839

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Diatoms by Archana Tiwari,Ashok Pandey,Pau-Loke Show,Parameswaran Binod Pdf

This reference book covers the ecological impact and biotechnological applications of diatoms. Diatoms contribute to 40% of primary productivity in aquatic ecosystems. They have a unique biomonitoring ability and sensitivity toward different pollutants in wastewater, and are thereby a tool for ecotoxicological monitoring. The book discusses the need for newer diatom-based indices for wastewater quality analysis. It describes the nutraceutical value of the myriad compounds like omega 3 fatty acids-DHA, polysaccharides, and phenols in diatoms. It also elaborates on the challenges in sustainable diatom biorefinery. This book is meant for microbiologists, biotechnologists, and marine biologists.

Author : R.S. Ambasht,Navin K. Ambasht
Publisher : Springer Science & Business Media
Page : 389 pages
File Size : 43,5 Mb
Release : 2012-12-06
Category : Science
ISBN : 9781461502210

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Modern Trends in Applied Aquatic Ecology by R.S. Ambasht,Navin K. Ambasht Pdf

Organisms and environment have evolved through modifying each other over millions of years. Humans appeared very late in this evolutionary time scale. With their superior brain attributes, humans emerged as the most dominating influence on the earth. Over the millennia, from simple hunter-food gatherers, humans developed the art of agriculture, domestication of animals, identification of medicinal plants, devising hunting and fishing techniques, house building, and making clothes. All these have been for better adjustment, growth, and survival in otherwise harsh and hostile surroundings and climate cycles of winter and summer, and dry and wet seasons. So humankind started experimenting and acting on ecological lines much before the art of reading, writing, or arithmetic had developed. Application of ecological knowledge led to development of agriculture, animal husbandry, medicines, fisheries, and so on. Modem ecology is a relatively young science and, unfortunately, there are so few books on applied ecology. The purpose of ecology is to discover the principles that govern relationships among plants, animals, microbes, and their total living and nonliving environmental components. Ecology, however, had remained mainly rooted in botany and zoology. It did not permeate hard sciences, engineering, or industrial technologies leading to widespread environmental degradation, pollution, and frequent episodes leading to mass deaths and diseases.

Author : Vadim V. Annenkov,Joseph Seckbach,Richard Gordon
Publisher : John Wiley & Sons
Page : 452 pages
File Size : 42,9 Mb
Release : 2021-11-23
Category : Science
ISBN : 9781119487951

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Diatom Morphogenesis by Vadim V. Annenkov,Joseph Seckbach,Richard Gordon Pdf

DIATOM MORPHOGENESIS A unique book presenting the range of silica structures formed by diatoms, theories and hypotheses of how they are made, and applications to nanotechnology by use or imitation of diatom morphogenesis. There are up to 200,000 species of diatoms, each species of these algal cells bearing an ornate, amorphous silica glass shell. The silica is structured at 7 orders of magnitude size range and is thus the most complex multiscalar solid structure known. Recent research is beginning to unravel how a single cell marshals chemical, physical, biochemical, genetic, and cytoskeletal processes to produce these single-cell marvels. The field of diatom nanotechnology is advancing as this understanding matures. Diatoms have been actively studied over the recent 10-20 years with various modern equipment, experimental and computer simulation approaches, including molecular biology, fluorescence-based methods, electron, confocal, and AFM microscopy. This has resulted in a huge amount of information but the key stages of their silica morphogenesis are still not clear. This is the time to reconsider and consolidate the work performed so far and to understand how we can go ahead. The main objective of this book is to describe the actual situation in the science of diatom morphogenesis, to specify the most important unresolved questions, and to present the corresponding hypotheses. The following areas are discussed: A tutorial chapter, with a glossary for newcomers to the field, who are often from outside of biology, let alone phycology; Diatom Morphogenesis: general issues, including symmetry and size issues; Diatom Morphogenesis: simulation, including analytical and numerical methods for description of the diatom valve shape and pore structure; Diatom Morphogenesis: physiology, biochemistry, and applications, including the relationship between taxonomy and physiology, biosilicification hypotheses, and ideas about applications of diatoms. Audience Researchers, scientists, and graduate students in the fields of phycology, general biology, marine sciences, the chemistry of silica, materials science, and ecology.

Author : Vipul Jain,Srikanta Patnaik,Florin Popențiu Vlădicescu,Ishwar K. Sethi
Publisher : Springer Nature
Page : 1040 pages
File Size : 42,8 Mb
Release : 2019-10-02
Category : Technology & Engineering
ISBN : 9789811394065

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Recent Trends in Intelligent Computing, Communication and Devices by Vipul Jain,Srikanta Patnaik,Florin Popențiu Vlădicescu,Ishwar K. Sethi Pdf

This book gathers a collection of high-quality, peer-reviewed research papers presented at the International Conference on Intelligent Computing, Communication and Devices (ICCD 2018), which address three core dimensions of the intelligent sciences—intelligent computing, intelligent communication, and intelligent devices. Intelligent computing includes areas such as intelligent and distributed computing, intelligent grid and cloud computing, Internet of Things, soft computing and engineering applications, data mining and knowledge discovery, semantic and web technology, hybrid systems, agent computing, bioinformatics, and recommendation systems. In turn, intelligent communication is concerned with communication and network technologies, such as mobile broadband and all-optical networks, which are the key to groundbreaking advances in intelligent communication technologies. It includes communication hardware, software and networked intelligence, mobile technologies, machine-to-machine communication networks, speech and natural language processing, routing techniques and network analytics, wireless ad hoc and sensor networks, communications and information security, signal, image and video processing, network management, and traffic engineering. Lastly, intelligent devices refer to any equipment, instruments, or machines that have their own computing capability, and covers areas such as embedded systems, radiofrequency identification (RFID), radiofrequency microelectromechanical systems (RF MEMS), very large-scale integration (VLSI) design and electronic devices, analog and mixed-signal integrated circuit (IC) design and testing, microelectromechanical systems (MEMS) and microsystems, solar cells and photonics, nanodevices, single electron and spintronic devices, space electronics, and intelligent robotics.

Author : Davide Zannoni,Claudia P. Saavedra,Gloria Paz Levicán,Martina Cappelletti
Publisher : Frontiers Media SA
Page : 211 pages
File Size : 42,5 Mb
Release : 2022-06-29
Category : Science
ISBN : 9782889764464

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Microbial Life Under Stress: Biochemical, Genomic, Transcriptomic, Proteomic, Bioinformatics, Evolutionary Aspects and Biotechnological Applications of Poly-Extremophilic Bacteria, Volume II by Davide Zannoni,Claudia P. Saavedra,Gloria Paz Levicán,Martina Cappelletti Pdf

Author : Joseph Seckbach,Richard Gordon
Publisher : John Wiley & Sons
Page : 690 pages
File Size : 48,8 Mb
Release : 2019-07-30
Category : Science
ISBN : 9781119370734

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Diatoms by Joseph Seckbach,Richard Gordon Pdf

The aim of this new book series (Diatoms: Biology and Applications) is to provide a comprehensive and reliable source of information on diatom biology and applications. The first book of the series, Diatoms Fundamentals & Applications, is wide ranging, starting with the contributions of amateurs and the beauty of diatoms, to details of how their shells are made, how they bend light to their advantage and ours, and major aspects of their biochemistry (photosynthesis and iron metabolism). The book then delves into the ecology of diatoms living in a wide range of habitats, and look at those few that can kill or harm us. The book concludes with a wide range of applications of diatoms, in forensics, manufacturing, medicine, biofuel and agriculture. The contributors are leading international experts on diatoms. This book is for a wide audience researchers, academics, students, and teachers of biology and related disciplines, written to both act as an introduction to diatoms and to present some of the most advanced research on them.

Author : Cornelius I. Weber
Publisher : Unknown
Page : 112 pages
File Size : 41,6 Mb
Release : 1971
Category : Diatoms
ISBN : UIUC:30112009990687

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A Guide to the Common Diatoms at Water Pollution Surveillance System Stations by Cornelius I. Weber Pdf

Author : United States. Federal Water Pollution Control Administration
Publisher : Unknown
Page : 112 pages
File Size : 44,7 Mb
Release : 1966
Category : Diatoms
ISBN : UCSD:31822009117482

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A Guide to the Common Diatoms at Water Pollution Surveillance System Stations by United States. Federal Water Pollution Control Administration Pdf

Author : John P. Smol,Eugene F. Stoermer
Publisher : Cambridge University Press
Page : 687 pages
File Size : 50,8 Mb
Release : 2010-09-30
Category : Science
ISBN : 9781139492621

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The Diatoms by John P. Smol,Eugene F. Stoermer Pdf

This much revised and expanded edition provides a valuable and detailed summary of the many uses of diatoms in a wide range of applications in the environmental and earth sciences. Particular emphasis is placed on the use of diatoms in analysing ecological problems related to climate change, acidification, eutrophication, and other pollution issues. The chapters are divided into sections for easy reference, with separate sections covering indicators in different aquatic environments. A final section explores diatom use in other fields of study such as forensics, oil and gas exploration, nanotechnology, and archaeology. Sixteen new chapters have been added since the first edition, including introductory chapters on diatom biology and the numerical approaches used by diatomists. The extensive glossary has also been expanded and now includes over 1,000 detailed entries, which will help non-specialists to use the book effectively.

Author : E.J. Cox
Publisher : Springer
Page : 180 pages
File Size : 54,8 Mb
Release : 1996-08-31
Category : Nature
ISBN : UCSD:31822023215023

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Identification of Freshwater Diatoms from Live Material by E.J. Cox Pdf

This book is the first to provide an identification key to this important freshwater group of algae which enables the user to work from live specimens. The use of fresh material means that time-consuming preparation techniques can be avoided enabling analyses to be made within a short time of collection. Also the diatoms can be counted, identified and studied at the same time as other algae in the sample. The book provides a general introduction to the diatoms including a resume of the variety of chloroplast forms encountered, a review of colony types, a guide to shape terminology and also information on how to measure cells. The keys are designed for the specialist and the non-specialist alike, allowing two points of entry and the identification of most common taxa to species level. When cleaned material is necessary for unequivocal identification, this is indicated. The book also contains a list of all species included with brief ecological notes on occurrences and distribution along with a glossary of terms. This book will be of immense use to biologists studying algal communities in freshwater ecosystems and particularly to those involved in monitoring programmes. The increasing realization of the importance of algae to the health of aquatic ecosystems, and the developing use of diatoms as environmental indicators means that this volume will become an invaluable aid to the water industries and environmental protection agencies.

Author : Grethe R. Hasle,Erik E. Syvertsen,Karen A. Steidinger,Karl Tangen,Carmelo R. Tomas
Publisher : Elsevier
Page : 613 pages
File Size : 45,6 Mb
Release : 1996-01-25
Category : Science
ISBN : 9780080534411

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Identifying Marine Diatoms and Dinoflagellates by Grethe R. Hasle,Erik E. Syvertsen,Karen A. Steidinger,Karl Tangen,Carmelo R. Tomas Pdf

Identifying Marine Diatoms and Dinoflagellates is the second identification manual created from the literature developed for the Advanced International Phytoplankton Course. This version, enlarged and modified from the earlier literature, deals with the identification of marine diatoms and dinoflagellates. The data and references presented here should allow the researcher to pursue the question of valid species and how they can be verified. This volume comprises three chapters, beginning with an introductory chapter discussing the subject's historical background. The next chapter focuses on marine diatoms, providing an introduction that describes their general characteristics, life cycles, morphology and terminology, and classification. It is followed by a discussion of genera represented in marine plankton, a description of taxa, and methodology. The third and final chapter focuses on dinoflagellates, beginning with an introduction that describes their general characteristics and eukaryotic unicells. The discussion continues with terminology and morphology, identification of species, techniques for preparation of dinoflagellates for identification, common dinoflagellate synonyms, and an index of dinoflagellate taxa. This book will be of interest to practitioners in the fields of biology, zoology, and environmental protection.

Author : Anonim
Publisher : Unknown
Page : 984 pages
File Size : 50,9 Mb
Release : 1972
Category : Water
ISBN : PSU:000068688394

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Selected Water Resources Abstracts by Anonim Pdf

Author : Martyn Kelly,Field Studies Council (Shrewsbury, Gran Bretaña)
Publisher : Unknown
Page : 117 pages
File Size : 55,8 Mb
Release : 2000
Category : Diatoms
ISBN : 1851532080

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Identification of Common Benthic Diatoms in Rivers by Martyn Kelly,Field Studies Council (Shrewsbury, Gran Bretaña) Pdf