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Dive into the research topics where Kotaro Hirose is active.

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Featured researches published by Kotaro Hirose.


Marine Micropaleontology | 2008

Development of modern benthic ecosystems in eutrophic coastal oceans: The foraminiferal record over the last 200 years, Osaka Bay, Japan

Akira Tsujimoto; Moriaki Yasuhara; Ritsuo Nomura; Hideo Yamazaki; Yoshikazu Sampei; Kotaro Hirose; Shusaku Yoshikawa


Limnology and Oceanography | 2007

The effect of long-term spatiotemporal variations in urbanization-induced eutrophication on a benthic ecosystem, Osaka Bay, Japan

Moriaki Yasuhara; Hideo Yamazaki; Akira Tsujimoto; Kotaro Hirose


Journal of Geosciences | 2005

Event deposits associated with tsunamis and their sedimentary structure in Holocene marsh deposits on the east coast of the Shima Peninsula, central Japan

Hisayo Okahashi; Moriaki Tasuhara; Muneki Mitamura; Kotaro Hirose; Shusaku Yoshikawa


Diatom | 2004

Diatoms in surface sediments from northeastern part of Osaka Bay, southwestern Japan

Kotaro Hirose; Toshikazu Gotoh; Hiroshi Sato; Shusaku Yoshikawa


The Quaternary Research (daiyonki-kenkyu) | 2012

Spatio-temporal changes of diatom assemblages and marine environments over the past few hundread years in coastal areas of northern Harima-Nada, Hyougo Prefecture, southwestern Japan

Kaoru Yoshioka; Kotaro Hirose; Toshiaki Irizuki; Shigenori Kawano; Ritsuo Nomura; Asumi Gotomyo; Masao Iwai


The Quaternary Research (daiyonki-kenkyu) | 2008

The succession of diatom assemblages and anthropogenically-induced environmental changes over the last 120 years, Osaka Bay, Japan

Kotaro Hirose; Moriaki Yasuhara; Akira Tsujimoto; Hideo Yamazaki; Shusaku Yoshikawa


The Quaternary Research (daiyonki-kenkyu) | 2013

A study on the utility of ultrasonic treatment for preparing fossil diatom slides

Kotaro Hirose; Kaoru Yoshioka; Toshiaki Irizuki; Masao Iwai; Toshikazu Gotoh


Japan Geoscience Union | 2017

Temporal variability of the environmental conditions in Hiuchi-Nada Bay, Seto Inland Sea, Japan for the past 100 years as recorded by diatoms, ostracodes, and heavy metals.

Kotaro Hirose; Toshiaki Irizuki; Yukari Ueda; Yuki Fujihara; Hiroaki Ishiga; Koji Seto


Journal of the Geological Society of Japan | 2016

Sedimentation age model of upper 2m of INW2012 core sediment from Lake Inawashiro-ko as revealed by 210 Pb, 134 Cs and 137 Cs methods

Kotaro Hirose; Hideo Yamazaki; Yoshitaka Nagahashi


Diatom | 2014

Small diatoms from Lake Shinji-ko and Lake Nakaumi 1. Morphology and distribution of Chaetoceros minimus (Levander) D.Marino et al.

Kotaro Hirose; Toshikazu Gotoh; Shuji Ohtani

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