Akiyoshi Kamatani

Tokyo University of Marine Science and Technology

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Trends

Author Order

Document Type

Co-Authors

Osamu Oku

Otsuka (Japan)

Masahiro Suzumura

National Institute of Advanced Industrial Science and Technology

Stéphanie Gueneley

Université de Bretagne Occidentale

Norio Ogura

Tokyo University of Agriculture and Technology

Nobutada Nakamoto

Ōtani University

Masanori Takano

Tokyo University of Marine Science and Technology

Shizuo Iwata

Japan Fisheries Research and Education Agency

Paul Tréguer

Institut Universitaire Européen de la Mer

Shigenobu Takeda

Nagasaki University

Nobuhiko Ejiri

Tokyo University of Marine Science and Technology

Cooperative Institutions

Tokyo University of Marine Science and Technology

The University of Tokyo

Tokyo Metropolitan University

Université de Bretagne Occidentale

Centre National de la Recherche Scientifique

National Institute for Environmental Studies

Tokyo University of Agriculture and Technology

Tokyo Metropolitan Police Department

Yamagata University

Tokyo Metropolitan Government

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Field

Kinetics of dissolution of Antarctic diatom frustules and the biogeochemical cycle of silicon in the Southern Ocean

Polar Biology (1989)

Paul Tr�guer Akiyoshi Kamatani Stéphanie Gueneley Bernard Qu�guiner

Biogenic silica

Biogeochemical Cycle

10.1007/bf00442531

Cite

Citations (72)

Origin and distribution of inositol hexaphosphate in estuarine and coastal sediments

Limnology and Oceanography (1995)

Masahiro Suzumura Akiyoshi Kamatani

In order to clarify the origin and the fate of inositol hexaphosphate (IP 6 ) in coastal sediments from Tokyo Bay, we determined IP 6 in several potential source materials, such as plankton, soil, riverine, and estuarine samples. IP 6 was not found in zoo‐ and phytoplankton samples, thus eliminating these as a source to the sediments. Soils collected from the catchment areas of major rivers flowing into the bay contained high concentrations of IP 6 (0.25–5.65 µ mol P g ‒1 ). Samples of suspended solids and estuarine sediments from the rivers also had significant amounts of IP 6 . The distribution pattern of IP 6 in Tokyo Bay sediments exhibited relatively high concentrations in the estuarine areas, decreasing gradually toward the mouth of the bay. The IP 6 in coastal sediments was composed of three isomers in the same order of abundance as those found in the terrestrial and riverine samples: myo‐ » scyllo‐ > chiro‐. From these results, IP 6 in Tokyo Bay sediments was ascribed to soils transported by rivers from land into the bay. The IP 6 concentration ranged from 0.01 to 0.10 µ mol P g ‒1 in surface sediments (0–2.5 cm), accounting for <1.2% of the total organic P; it was completely decomposed in the subsurface. Consequently, this compound is quite ephemeral in coastal marine environments.

10.4319/lo.1995.40.7.1254

Cite

Citations (76)

Resting spore formation and biochemical composition of the marine planktonic diatom Chaetoceros pseudocurvisetus in culture: ecological significance of decreased nucleotide content and activation of the xanthophyll cycle by resting spore formation

Marine Biology (1999)

Osamu Oku Akiyoshi Kamatani

Sporogenesis

10.1007/s002270050643

Cite

Citations (30)

Fluctuation of dissolved organic carbon in seawater of Sagami Bay during 1971–1972

Journal of Engineering Physics and Thermophysics (1975)