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Taxonomy and identification of the armored dinoflagellate genus Heterocapsa (Peridiniales, Dinophyceae)

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タイトル: Taxonomy and identification of the armored dinoflagellate genus Heterocapsa (Peridiniales, Dinophyceae)
著者: Iwataki, Mitsunori
発行日: 2008年 8月
出版者: The Plankton Society of Japan / 日本プランクトン学会
引用: Plankton and Benthos Research, 3(3), pp.135-142; 2008
抄録: The armored dinoflagellate genus Heterocapsa is composed of relatively small species, including a species responsible for harmful red tides, H. circularisquama. Some Heterocapsa species such as H. rotundata and H. triquetra have been well documented as red tide-forming species, but are not recognized as causing harmful effects. Following sequential shellfish mass mortalities in the coastal waters of western Japan due to H. circularisquama red tides, this species has attracted considerable interest. Many properties of this species, such as its distribution and growth characteristics, have been investigated to better understand the mechanisms involved in harmful red tide formation. Related to the need for unambiguous identification of H. circularisquama, several unidentified (or undescribed) Heterocapsa species, which must be distinguished from the harmful taxon, have been detected sympatrically in regions where H. circularisquama blooms occur. However, the taxonomic affiliation of these Heterocapsa species have not yet been determined because several characteristics of Heterocapsa (e.g. body scale ultrastructure) have not yet been reported from all described species due to the changing taxonomic criteria. After the taxonomic ambiguities in this genus were resolved, cellular and body scale morphology of Heterocapsa were reinvestigated and several new species were described. In the present paper, the taxonomic history and morphological characters of the genus Heterocapsa are summarized.
キーワード: Body scale / Dinoflagellate / Heterocapsa / Morphology / Nucleus / Pyrenoid / Red tide / Taxonomy / Thecal plates
URI: http://hdl.handle.net/10069/23074
ISSN: 18808247
DOI: 10.3800/pbr.3.135
権利: Copyright (c) 2008 The Plankton Society of Japan
資料タイプ: Journal Article
原稿種類: publisher
出現コレクション:220 学術雑誌論文

引用URI : http://hdl.handle.net/10069/23074



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