Seagrasses of the Genus Halophila Thouars (Hydrocharitaceae) from Japan

DOI 2 Citations 60 References
  • KUO JOHN
    Centre for Microscopy and Microanalysis, the University of Western Australia
  • KANAMOTO ZIYUSEI
    Center for Marine Environmental Studies, Division of Aquatic Biology and Ecology, Ehime University
  • IIZUMI HITOSHI
    Japan Sea National Fisheries Research Institute, Fisheries Research Agency
  • MUKAI HIROSHI
    Akkeshi Marine Station, Field Science Center for Northern Biosphere, Hokkaido University

Search this article

Description

A taxonomic study of the seagrass genus Halophila Thouars concludes that eight distinct taxa, including four new species, occur in Japanese waters. Past literature indicated that the name of H. ovata Gaud. is illegitimate, thus a new species name, H. gaudichaudii J. Kuo, with a description is provided. Halophila major (Zoll.) Miq. has been reinstated to a distinct taxon, with H. euphlebia Mak. as a synonym. The other three new species, H. nipponica J. Kuo, H. mikii J. Kuo, and H. okinawensis J. Kuo are endemic to Japan, while H. gaudichaudii, H. ovalis (R. Br.) Hook. f., H. major, H. minor (Zoll.) den Hartog and H. decipiens Ostenf. are extended from Indo-West Pacific regions to reach their northern distributional boundaries in southern Japan. Halophila okinawensis and H. gaudichaudii are restricted to Ryukyu Islands and H. mikii only occurs in Tanegashima and Yakushima Islands. Halophila nipponica is widely distributed in temperate Japan except for Hokkaido Island, while the tropical H. major has additional colonies confined to Wakayama Prefecture in Honshu and Tokushima and Kochi Prefectures in Shikoku. Typifications, morphological descriptions, habitat and biological information, illustrations and distribution maps are presented for each taxon. Biogeographical distribution of the Japanese species is discussed in relation to the effect of currents.

Journal

Citations (2)*help

See more

References(60)*help

See more

Keywords

Details 詳細情報について

  • CRID
    1390282680245687040
  • NII Article ID
    110006318345
  • NII Book ID
    AA11586265
  • DOI
    10.18942/apg.kj00004622858
  • ISSN
    21897042
    13467565
  • Text Lang
    en
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

Report a problem

Back to top