HOME    Nuar Information    mypage        Japanese    Feedback

新潟大学学術リポジトリ Nuar >
050 理学部 = Faculty of Science >
20 紀要 = Departmental Bulletin Paper >
02 Science reports of Niigata University. (Geology) >

 

Files in This Item:

File Description SizeFormat
17_27-41.pdf5777KbAdobe PDF
Title :Bottom sediments and benthic faunas off Tassha in Sado Island, Niigata Prefecture, central Japan
Authors :Tamura, Kazutoshi
Sakumoto, Tatsuya
Yabe, Hideo
Matsuoka, Atsushi
Niikawa, Isao
Tateishi, Masaaki
Hasegawa, Satoshi
Yoshida, Kazuhiro
Shinzawa, Midori
Publisher :新潟大学理学部
Issue Date :Mar-2002
Journal Title :Science reports of Niigata University. (Geology)
Volume :17
Start Page :27
End Page :41
ISSN :1349-1237
Abstract :Bottom sediments and invertebrate benthic faunas were recovered by dredge sampling at four stations off the Tassha coast of Sado Island in the Japan Sea. Nineteen crustacean and 144 molluscan species were found in the bottom sediments. Among the decapod crustaceans, Australeremus triserratus (Ortmann) was identified for the first time in the Japan Sea. The following nine molluscan species were newly found around Sado Island: Emarginula fragilis Yokoyama, Nodiscala matajiroi Kuroda, Pyreneola semipicta (Sowerby III), Dimiya filipina Bartsch, Spondylus barbatus Reeve, Agatha lepidula Habe, Cycladicama semiasperoides (Nomura), Abrina lunella (Gould) and Pitar japonicum Kuroda and Kawamoto. The grain size analysis revealed that the bottom sediments were classified into two groups: coarse-grained sand at shallower nearshore sites and fine-grained sand at a deeper offshore site. The cluster analysis for the molluscan faunas was concordant to the grain size classification of the sediments.
Keywords :benthic fauna
bottom sediments
Crustacea
grain size analysis
Japan Sea
Mollusca
Sado Island
Type Local :紀要論文
Language :eng
Format :application/pdf
URI :http://hdl.handle.net/10191/47853
fullTextURL :http://dspace.lib.niigata-u.ac.jp/dspace/bitstream/10191/47853/1/17_27-41.pdf
Appears in Collections:02 Science reports of Niigata University. (Geology)

Please use this identifier to cite or link to this item: http://hdl.handle.net/10191/47853