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Taxonomic Studies Of The Subgenus Amphora Cleve Of The Genus Amphora Bacillariophyceae In Japan

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Taxonomic Studies Of The Subgenus Amphora Cleve Of The Genus Amphora Bacillariophyceae In Japan

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Author : Tamotsu Nagumo
language : en
Publisher:
Release Date : 2003

Taxonomic Studies Of The Subgenus Amphora Cleve Of The Genus Amphora Bacillariophyceae In Japan written by Tamotsu Nagumo and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Diatoms categories.

The genus Amphora is one of the larger genera belonging to the family Naviculaceae and includes about 350 taxa. It is a widespread genus with a few species occurring in freshwater and brackish water, and many species in marine habitats. Members of the genus are clearly distinguished from related genera. The characteristic, strongly dorsiventral frustule has raphe systems which lie close to the ventral margins of the valve. There is no taxonomic revision and clear definition of the genus Amphora based modern taxonomic criteria covering both freshwater to marine species. This study deal with the taxonomy the subgenus Amphora, for freshwater and marine species in Japan. In addition to the characters observable by light microscopy, characters revealed mainly by scanning and transmission electron microscopy, such as raphe system and the shape of dorsal marginal costa, were employed to establish the taxonomy of the taxa considerd herein. Eighteen taxa are recognized in this work. First, each taxon was observed in detail using SEM to expand current knowledge of its fine structure. Taxonomic identification was then confirmed with reference to type material or other historic collections. Among the taxa investigated here, four are new to science, one is a new combination and one is a new name. Ten of the taxa investigated here (Amphora barrowiana (Patr. et Freese) Nagumo comb. nov., A. copulata (Kützing) Schoeman et Archibald, A. hiromuii Nagumo sp. nov., A. inariensis Krammer, A. liriope Nagumo sp. nov., A. macedoniensis Nagumo sp. nov., A. ovalis Kützing., A. pediculus (Kützing) Grun., A. rotunda Skv., A. sibirica Skv. et Meyer) are from freshwaters habitats. Three (A. arenicola (Grun.) Cleve, A. javanica Schmidt, A. libyca Ehr.) are from brackish-water habitats and five (A. gigantea Grun., A. immarginata Nagumo sp. nov., A. marina W. Smith, A. plativalvata Nagumo nom. et stat. nov., A. schmidtii Grun.) are from marine habitats.

Amphora And Halamphora From Coastal And Inland Waters Of The United States And Japan

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Author : Joshua G. Stepanek
language : en
Publisher:
Release Date : 2018-05-15

Amphora And Halamphora From Coastal And Inland Waters Of The United States And Japan written by Joshua G. Stepanek and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-05-15 with categories.

The authors of this volume study and describe the valve morphology of 108 taxa, representing 75 distinct species, in the genera Amphora and Halamphora from aquatic environments in the United States and Japan. Amphora Ehrenberg ex Kützing and Halamphora (Cleve) Levkov are taxonomically diverse genera of raphid diatoms. In addition to being species rich, their ecology is equally diverse, with representatives of the genera present in coastal and inland waters from the tropics to the arctic. Of the 75 species, nearly one-half of them (33) are described as new, including 4 from the genus Amphora and 29 from the genus Halamphora. Eight species are transferred from Amphora to Halamphora and new combinations proposed. All taxa considered herein have been cultured, and 4 genes (the nuclear encoded 18S and 28S rDNA and the chloroplast encoded rbcL and psbC genes) have been sequenced for each. This combination of morphological and molecular data lays an important foundation for future research of the taxonomy, ecology and systematics of the Amphora and Halamphora floras of coastal and inland waters.

Diatoms Of Europe

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Author : Horst Lange-Bertalot
language : en
Publisher:
Release Date : 2000

Diatoms Of Europe written by Horst Lange-Bertalot and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Diatoms categories.

Diatoms Of Lakes Prespa And Ohrid

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Author : Zlatko Levkov
language : en
Publisher: Gantner Publishing
Release Date : 2007

Diatoms Of Lakes Prespa And Ohrid written by Zlatko Levkov and has been published by Gantner Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Diatoms categories.

Lakes Preska and Ohrid belong to the old tectonic oligomicticdeep isolated lakes . A total of 450 taxa are presented, 78(17.3%) being described as new taxa (1 genus, 73 speciesand 4 varieties) 9 taxa have new combinations or status.Presence of relict species has been confirmed. Naviculaturris HUSTEDT is reported for the first time outside theKopecz Tertiary deposits in a recent lake.

Diatom Assemblages From Sphagnum Bogs Of The World

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Author : Maxim S. Kulikovskiy
language : en
Publisher:
Release Date : 2010

Diatom Assemblages From Sphagnum Bogs Of The World written by Maxim S. Kulikovskiy and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with Bogs categories.

This book is the first in the series of volumes that will be devoted to the Eurasian Sphagnum bog diatoms. Sphagnum bogs are unique ecosystems. The main ecological drivers in these systems are Sphagnum mosses. They originate under organic, acidic conditions with low content of available electrolytes. Diatomological studies of the Sphagnum bogs of Russia and adjacent countries began in the 1950s. However, these papers include the floristic information on only a few dozen smaller bogs. Large-scale floristic, taxonomic and biogeographic investigations have not been conducted so far, although this gap has been reduced by a few recent studies. Diatom assemblages from Sphagnum bog Nur, situated in the northern mountainous region of Mongolia, are subject of the study. Nur is a unique ecosystem in Mongolia because it is the only known large Sphagnum bog throughout this region. There are no earlier studies on the algal flora of this ecosystem. A total of 242 diatom taxa, belonging to 48 genera have been identified from samples taken from different habitats of this bog. Light and scanning electron microscope analyses resulted in the description of one new genus, Boreozonacola, and 18 new species from the genera Pinnularia, Stauroneis, Naviculadicta, Fragilaria, Eunotia, Boreozonacola, Caloneis, Chamaepinnularia, and Neidium. Additionally, 11 new taxonomic combinations are suggested. Species treatments include descriptions, synonymies, size dimensions, and relevant literature. For some species historical information is also provided.

Diatoms Of North America

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Author : Dermot Antoniades
language : en
Publisher: Gantner Publishing
Release Date : 2008

Diatoms Of North America written by Dermot Antoniades and has been published by Gantner Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with Diatoms categories.

An introduction to Ellef Ringnes Island, Prince Patrick Islandand Northern Ellesmere Island. From the preface This project was initiated in 1998 with the development of a surface diatomcalibration set for selected regions from the Arctic Islands.Under the study surface sediments, mosses,rock and otheravailable habitats were studied from 91 ponds and lakes.It became clear that the diatoms observed were new or undocumented. Detailed taxonomic studies were done at the Canadian Museum of Nature using SEM generated images andthe extensive Library. A must have for research in the Arctic

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Author :
language : ja
Publisher:
Release Date : 2007

written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Aquatic biology categories.

Taxonomic Studies Of The Subgenus Amphora Cleve Of The Genus Amphora Bacillariophyceae In Japan

Taxonomic Studies Of The Subgenus Amphora Cleve Of The Genus Amphora Bacillariophyceae In Japan

Amphora And Halamphora From Coastal And Inland Waters Of The United States And Japan

Diatoms Of Europe

Diatoms Of Lakes Prespa And Ohrid

Diatom Assemblages From Sphagnum Bogs Of The World

Diatoms Of North America

Bacillariophyta Diatoms Of The Bahamas

Occasional Papers Of The California Academy Of Sciences

Deutsche Nationalbibliografie

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