Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Tadatoshi KOITABASHI"'
Publikováno v:
Limnology. 21:67-72
Alien species have invaded worldwide and altered native biodiversity and ecosystem functions. In Lake Biwa, Japan, Micrasterias hardyi—considered an endemic species in Australia—has become one of the major dominant species since 2016. To evaluate
Autor:
Takefumi Nakazawa, Yoichiro Sakai, Chih-hao Hsieh, Tadatoshi Koitabashi, Ichiro Tayasu, Norio Yamamura, Noboru Okuda
Publikováno v:
PLoS ONE, Vol 5, Iss 2, p e9120 (2010)
Characterizing relationships between individual body size and trophic niche position is essential for understanding how population and food-web dynamics are mediated by size-dependent trophic interactions. However, whether (and how) intraspecific siz
Externí odkaz:
https://doaj.org/article/8d31017378d14bf2ab963003718fb7ec
Publikováno v:
Limnology. 11:233-239
Detailed cross-sectional temperature and oxygen distributions during winter were examined over 5 years (2003–2007) in large, warm, monomictic Lake Biwa. The distribution patterns showed year-to-year variation in the degree of spatial heterogeneity
Autor:
Tetsuya NARITA, Shuichi ENDOH, Osamu MUTAMURA, Yasuaki OKUMURA, Hiroki HAGA, Takuo NAKAJIMA, Takaaki UEDA, Tadatoshi KOITABASHI
Publikováno v:
Japanese Journal of Limnology (Rikusuigaku Zasshi). 64:39-47
Publikováno v:
Limnology. 2:193-197
To determine the origin of CH4, the vertical distribution of CH4 around the thermocline in the north basin of Lake Biwa and the horizontal distribution in the Yasu and Ado rivers were measured. In 1995, CH4 concentrations (ranging from 200 to 1000 nM
Autor:
Hirotaka Oda, Naohiko Ohkouchi, Eitaro Wada, Nanako O. Ogawa, Toshio Nakamura, Tadatoshi Koitabashi
Publikováno v:
Limnology and Oceanography. 46:1228-1236
Nitrogen isotope ratios (Δ15N) of sediment and formalinߚfixed fish specimens (Isaza fish, Chaenogobius isaza, Tanaka), which had been collected and preserved over 40 yr, were used to provide a new methodology to reconstruct recent eutrophication an
Autor:
Akihiro Tsuji, Masami Nakanishi, Kentaro Nozaki, Tatsuo Miyazaki, Tatsuki Sekino, Chikage Yoshimizu, Tadatoshi Koitabashi, Maiko Kagami, Jotaro Urabe
Publikováno v:
Ecological Research. 14:233-242
Simple correlation and multiple regression analyses were performed to examine the relationship between primary productivity and environmental factors in the north basin of Lake Biwa. The primary production rates used in the analyses were estimated mo
Publikováno v:
Fundamental and Applied Limnology. 142:21-34
We followed seasonal changes in the abundance of bacteria, heterotrophic nanoflagellates (HNF), rotifers and crustaceans, and the consumption of bacteria by HNF in mesotrophic Lake Biwa from March to November 1993. From March to July, the changing pa
Autor:
Yuko T. Hanba, Takuo Nakajima, Eitaro Wada, Yoshihiro Yamada, Toshihiro Miyajima, Tadatoshi Koitabashi, Koichi Yoshii
Publikováno v:
Biogeochemistry. 36:205-221
The vertical distribution of dissolved greenhouse gases (CH4,ΣCO2 and N2O), NO $${\text{NO}}_{\text{2}} - $$ ,and δ13C of ΣCO2 in Lake Biwa during a stagnantperiod was precisely determined. ΣCO2 as well as NO $${\text{NO}}_{\text{3}} - $$ was acc
Determining the stable isotope ratio of total dissolved inorganic carbon in lake water by GC/C/IIRMS
Autor:
Tadatoshi Koitabashi, Yoshihiro Miyajima, Eitaro Wada, Koichi Yoshii, Toshihiro Miyajima, Yuko T. Hanba
Publikováno v:
Limnology and Oceanography. 40:994-1000
A simple, precise method for determining the carbon stable isotope ratio of total dissolved inorganic C (ΣCO 2 ) in freshwater samples is described. Water samples are packed in airtight glass bottles of known inner volume (∼70 ml) with no air bubb