Primary productivity and solar radiation off Sanriku in May 1997
Rent the article at a discountRent now
* Final gross prices may vary according to local VAT.Get Access
We measured the in situ primary production at four stations from the surface to 80 m off Sanriku in late May 1997. The depth-integrated daily primary production in the upper 80 m was estimated to be 391, 468, and 855 mgC m−2d−1 in water from the Oyashio, and 336 mgC m−2d−1 in the warm-core ring. The variation in the primary production was primarily due to the variation in phytoplankton activity (chlorophyll α-specific primary production). A combination of previous and present studies in water from the Oyashio and the warm-core ring suggested that phytoplankton activity is proportional to light intensity between 12 and 50 Ein m−2d−1 which is close to the usual light condition (61–75 Ein m−2d−1) off Sanriku in May and June. Light may be a limiting factor for phytoplankton off Sanriku in late spring and early summer.
- Aruga, Y. and M. Monsi (1962): Primary production in the northwestern part of the Pacific off Honshu, Japan.J. Oceanogr. Soc. Japan,18, 85–94.
- Aruga, Y., Y. Yokohama and M. Nakanishi (1968): Primary productivity studies in February-March in the north western Pacific off Japan.J. Oceanogr. Soc. Japan,24, 275–280.
- Hama, T. (1992): Primary productivity and photosynthetic products around the Kuroshio warm-corering.Deep-Sea Res.,39, S279-S293.
- Hama, T., T. Miyazaki, Y. Ogawa, T. Iwakuma, M. Takahashi, A. Otsuki and S. Ichimura (1983): Measurement of photosynthetic production of a marine phytoplankton population using a stable13C isotope.Mar. Biol.,73, 31–36. CrossRef
- Japan Fisheries Information Service Center (1997):Gyokaikyo Sokuho (Prompt Report of Fisheries Oceanographical Conditions), No. 1539 (in Japanese).
- National Astronomical Observatory of Japan (1996):Rika Nenpyo (Chronological Scientific Tables). Maruzen Co., Ltd., Tokyo, 1043 pp. (in Japanese).
- Parsons, T. R., Y. Maita and C. M. Lalli (1984):A Manual of Chemical and Biological Methods for Seawater Analysis. Pergamon Press, Oxford, 173 pp.
- Saijo, Y. and S. Ichimura (1960): Primary production in the northwestern Pacific Ocean.J. Oceanogr. Soc. Japan,16, 29–35.
- Shiomoto, A., K. Sasaki, T. Shimoda and S. Matsumura (1994): Primary productivty in the offshore Oyashio in the spring and summer 1990.J. Oceanogr.,50, 209–222. CrossRef
- Shiomoto, A., K. Sasaki and S. Shimoda (1996): Primary production and contribution of “new” production in the warm-core ring and the cold streamer off Sanriku in May 1990.La mer,34, 1–9.
- Taniguchi, A. and T. Kawamura (1972): Primary production in the Oyashio region with special reference to the subsurface chlorophyll maximum layer and phytoplankton-zooplnakton relationship. p. 231–243. InBiological Oceanography of the Northern North Pacific Ocean, ed. by A. Y. Takenoutiet al., Idemitu Shoten, Tokyo.
- Yokouchi, K., A. Tomosada and Y. Matsuo (1997): Photosynthesis-light response curves in Kuroshio, Oyashio and the transition area off Tohoku.Bull. Tohoku Natl. Fish. Res. Inst.,59, 127–138.
- Primary productivity and solar radiation off Sanriku in May 1997
Journal of Oceanography
Volume 54, Issue 5 , pp 539-544
- Cover Date
- Print ISSN
- Online ISSN
- Springer Netherlands
- Additional Links
- Off Sanriku
- daily primary production
- chlorophylla-specific primary production
- Author Affiliations
- 1. National Research Institute of Far Seas Fisheries, 7-1. Orido 5 chome, 424-8633, Shimizu, Shizuoka, Japan
- 2. School of Marine Science and Technology, Tokai University, 20-1, Orido 3 chome, 424-0902, Shimizu, Shizuoka, Japan