Item type |
紀要論文(ELS) / Departmental Bulletin Paper(1) |
公開日 |
1989-09-01 |
タイトル |
|
|
タイトル |
Photosynthetic nature of ice algae and their contribution to the primary production in lagoon Saroma Ko, Hokkaido, Japan |
言語 |
|
|
言語 |
eng |
資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
departmental bulletin paper |
ID登録 |
|
|
ID登録 |
10.15094/00005043 |
|
ID登録タイプ |
JaLC |
ページ属性 |
|
|
内容記述タイプ |
Other |
|
内容記述 |
P(論文) |
著者名(英) |
Satoh, Hiroo
Yamaguchi, Yukuya
Watanabe, Kentaro
Tanimura, Atsushi
Fukuchi, Mitsuo
Aruga, Yusho
|
著者所属(英) |
|
|
|
en |
|
|
Tokyo University of Fisheries/Laboratory of Biology, College of Liberal Arts, Saitama University/National Institute of Polar Research/National Institute of Polar Research/National Institute of Polar Research/Tokyo University of Fisheries |
抄録(英) |
|
|
内容記述タイプ |
Other |
|
内容記述 |
Photosynthetic activity of ice algae and phytoplankton was investigated under sea ice at two stations (ca. 44°10'N, 143°46'E) in lagoon Saroma Ko, Hokkaido, Japan, in early March 1987. Water temperature and salinity ranged from -1.1 to -1.4℃ and from 32.4 to 33.5, respectively. The maximum chlorophyll a concentrations of ice algae within 4cm from the bottom of sea ice and phytoplankton in water column were 385 and 0.77 mg m^<-3>, respectively. The maximum photosynthetic rate (1.12 mgO_2 mgchl, a^<-1> h^<-1>) of ice algae was obtained under 37.5 μEm^2 s^<-1>, which corresponds to only 3% of incident solar radiation. These results demonstrate the low-light adaptation of ice algae grown under low light conditions. The optimum temperature for photosynthesis of ice algae was around 8℃. In situ measurements on a clear day gave the primary production of 1.59 mgCm^<-2> h^<-1> by ice algae and that of 1.92 mgCm^<-2> h^<-1> by phytoplankton. It was concluded that the ice algae contribute to a considerable extent to the production of organic carbon in the ice-covered area of Saroma Ko during winter. |
雑誌書誌ID |
|
|
収録物識別子タイプ |
NCID |
|
収録物識別子 |
AA10819561 |
書誌情報 |
Proceedings of the NIPR Symposium on Polar Biology
巻 2,
p. 1-8,
発行日 1989-09
|
出版者 |
|
|
出版者 |
National Institute of Polar Research |