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Author: Isao Inouye Publisher: ISBN: Category : Languages : en Pages : 25
Book Description
Several topics will be given. Monophyly of the coccolithophorids: In well accepted taxonomic system of the haptophytes, e.g. Parke and Green 1976, coccolithophorids are placed in two orders, Isochrysidales and Coccosphaerales. We have analysed molecular phylogeny of rbcL (collaboration with Drs. Fujiwara and Minaka) and 18SrDNA, which suggest monophyly of the coccolithophorids. Isochrysis, non-coccolith-bearing haptophyte form a clade with Gephyrocapsa oceanica and Emiliania huxleyi, suggesting secondary loss of coccolith production in this genus. Taxonomic system of the Haptophyta should be reconsidered as to adapt as much as possible to phylogenetic relationships.
Author: Isao Inouye Publisher: ISBN: Category : Languages : en Pages : 25
Book Description
Several topics will be given. Monophyly of the coccolithophorids: In well accepted taxonomic system of the haptophytes, e.g. Parke and Green 1976, coccolithophorids are placed in two orders, Isochrysidales and Coccosphaerales. We have analysed molecular phylogeny of rbcL (collaboration with Drs. Fujiwara and Minaka) and 18SrDNA, which suggest monophyly of the coccolithophorids. Isochrysis, non-coccolith-bearing haptophyte form a clade with Gephyrocapsa oceanica and Emiliania huxleyi, suggesting secondary loss of coccolith production in this genus. Taxonomic system of the Haptophyta should be reconsidered as to adapt as much as possible to phylogenetic relationships.
Author: J. C. Green Publisher: Clarendon Press ISBN: Category : Nature Languages : en Pages : 474
Book Description
The planktonic algae known as the Haptophyta occur in all the world's oceans, sometimes occurring in 'blooms' so dense that they can be detected by satellites. Some species produce sulphur compounds that may contribute to the problem of acid rain. Others strongly affect the carbon dioxide balance between the ocean and the atmosphere, thus becoming linked to the proposed 'greenhouse effect', and others produce powerful poisons responsible for killing fish and other marine life. This is the first book to deal comprehensively with this important group of unicellular organisms, and each chapter has been contributed by an expert in the field. The topics covered include all major aspects of haptophyte biology, including structure, biochemistry, ecology, climatological and economic importance, fossil record, evolution, and systematics.
Author: Hans R. Thierstein Publisher: Springer Science & Business Media ISBN: 366206278X Category : Science Languages : en Pages : 567
Book Description
This introduction to one of the most common phytoplankton types provides broad coverage from molecular and cellular biology all the way to its impact on the global carbon cycle and climate. Individual chapters focus on coccolithophore biology, ecology, evolutionary phylogeny and impact on current and past global changes. The book addresses fundamental questions about the interaction between the biota and the environment at various temporal and spatial scales.
Author: Geological Society of London Publisher: Geological Society of London ISBN: 9781862391819 Category : Science Languages : en Pages : 342
Book Description
The Early-Middle Pleistocene transition (around 1.2 to 0.5 Ma) marks a profound shift in Earth's climate state. Low-amplitude 41 ka climate cycles, dominating the earlier part of the Pleistocene, gave way progressively to a 100 ka rhythm of increased amplitude that characterizes our present glacial-interglacial world. This volume assesses the biotic and physical response to this transition both on land and in the oceans: indeed it examines the very nature of Quaternary climate change. Milankovitch theory, palaeoceanography using isotopes and microfossils, marine organic geochemistry, tephrochronology, the record of loess and soil deposition, terrestrial vegetational change, and the migration and evolution of hominins as well as other large and small mammals, are all considered. These themes combine to explore the very origins of our present biota.
Author: John D. Wehr Publisher: Elsevier ISBN: 0123858771 Category : Science Languages : en Pages : 1067
Book Description
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
Author: Patricia M. Glibert Publisher: Springer ISBN: 3319700693 Category : Science Languages : en Pages : 460
Book Description
Harmful algal blooms (HABs) - blooms that cause fish kills, contaminate seafood with toxins, or cause human or ecological health impacts and harm to local economies - are occurring more often, in more places and lasting longer than in past decades. This expansion is primarily the result of human activities, through increased nutrient inputs and various aspects of climate change. The Global Ecology and Oceanography of Harmful Algal Blooms (GEOHAB) programme promoted international collaboration to understand HAB population dynamics in various oceanographic regimes and to improve the prediction of HABs. This volume introduces readers to the overarching framework of the GEOHAB programme, factors contributing to the global expansion of harmful algal blooms, the complexities of HABs in different habitats, and the forward-looking issues to be tackled by the next generation of GEOHAB, GlobalHAB. The programme brought together an international team of contributing scientists and ecosystem managers, and its outcomes will greatly benefit the international research community.
Author: Babin, Marcel Publisher: UNESCO ISBN: 9231040421 Category : Nature Languages : en Pages : 880
Book Description
The proliferation of harmful phytoplankton in marine ecosystems can cause massive fish kills, contaminate seafood with toxins, impact local and regional economies and dramatically affect ecological balance. Real-time observations are essential for effective short-term operational forecasting, but observation and modelling systems are still being developed. This volume provides guidance for developing real-time and near real-time sensing systems for observing and predicting plankton dynamics, including harmful algal blooms, in coastal waters. The underlying theory is explained and current trends in research and monitoring are discussed.Topics covered include: coastal ecosystems and dynamics of harmful algal blooms; theory and practical applications of in situ and remotely sensed optical detection of microalgal distributions and composition; theory and practical applications of in situ biological and chemical sensors for targeted species and toxin detection; integrated observing systems and platforms for detection; diagnostic and predictive modelling of ecosystems and harmful algal blooms, including data assimilation techniques; observational needs for the public and government; and future directions for research and operations.
Author: Isao Inouye
Author: Isao Inouye
Author: J. C. Green
Author: Isabella A. Abbott
Author: Hai Doan Nhu
Author: Hans R. Thierstein
Author: Burkhard Büdel
Author: Geological Society of London
Author: John D. Wehr
Author: Patricia M. Glibert
Author: Babin, Marcel