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References
♦Physical oceanography
  1. Hiroe, Y., I. Yasuda, K. Komatsu, K. Kawasaki, T. M. Joyce and F. Bahr (2002): Transport of North Pacific Intermediate water in the Kuroshio-Oyashio Iinterfrontal zone. Deep-Sea Res. II, 49, 5353-5364.
  2. Katsumata, K., K. I. Oshima, T. Kono, M. Itoh, I. yasuda, Y. N. Volkov and M. Wakatsuchi (2004): Water exchange and tidal currents through the Bussol' Strait revealed by direct current measurements. J. Geophys. Res., 109, doi:10.1029/2003JC001864.
  3. Kono, T. (1997): Modification of the Oyashio Water in the Hokkaido and Tohoku areas. Deep-Sea Res., 44, 669-688.
  4. Kono, T., and Y. Kawasaki (1997): Modification of the western subarctic water by exchange with Okhotsk Sea. Deep-Sea Res, 44, 689-711.
  5. Kono, T., and Y. Kawasaki (1997): Results of CTD and mooring observations southeast of Hokkaido. 1. Annual verocity and transport variations in the Oyashio. Bull. Hokkaido Natl. Fish. Res. Inst., 61, 65-81.
  6. Kono, T., and Y. Kawasaki (1997): Results of CTD and mooring observations southeast of Hokkaido. 2. Annual variations of water mass structure and salt flux of the Oyashio. Bull. Hokkaido Natl. Fish. Res. Inst., 61, 83-95.
  7. Kono, T., M. Foreman, P. Chandler and M. Kashiwai (2004): Coastal Oyashio south of Hokkaido, Japan. J. Phys. Oceanogr., 34, 1477-1494.
  8. Masujima, M., I. Yasuda, Y. Hiroe and T. Watanabe (2003): Transport of Oyashio water across the subarctic front into the Mixed Water Region and formation of NPIW. J. Oceanogr., 59, 855-870.
  9. Osafune, S. and I. Yasuda (2006): Bidecadal variability in the intermediate waters of the northwestern subarctic Pacific and the Othotsk Sea in relation to 18.6-year period nodal tidal cycle. J. Geophys. Res., 111, 10.1029/2005JC003277.
  10. Ueno, H. and I. Yasuda (2001): Warm and saline water transport to the North Pacific subarctic region: World Ocean Circulation Experiment and Subarctic Gyre Experiment data analysis. J. Geophys. Res., 106, 22131-22142.
  11. Yasuda, I., S. Kouketsu, K. Katsumata, M. Ohiwa, Y. Kawasaki and A. Kusaka (2002): Influence of Okhotsk Sea Intermediate Water on the Oyashio and North Pacific Intermediate Water. J. Geopys. Res., 107, doi:10.1029/2001JC001037.
  12. Yasuda, I., Y. Hiroe, K. Komatsu, K. Kawasaki, T. M. Joyce, F. Bahr and Y. Kawasaki (2001): Hydrographic structure and transport of the Oyashio south of Hokkaido and the formation of North Pacific Intermediate Water. J. Geophys. Res., 6931-6942.
  13. Yoshimori, A., J. Ishizaka, T. Kono, H. Kasai, H. Saito, M. J. Kishi and S. Taguchi (1995): Modeling of spring bloom in the western subarctic Pacific (off Japan) with observed vertical density structure. J. Oceanogr., 51, 471-488.
♦Biological and Chemical oceanography
  1. Aita, M., Y. Yamanaka and M. J. Kishi (2003): Effects of ontogenetic vertical migration of zooplankton on annual primary production -- using NEMURO embedded in a general circulation model. Fish. Oceanogr., 12, 284-290.
  2. Andreev, A. G. and V. I. Baturina (2006): Impacts of tides and atmospheric forcing variability on dissolved oxygen in the subarctic North Pacific. J. Geophys. Res., 111, C07S10, 10.1029/2005JC003103.
  3. Chiba, S., T. Ono, K. Tadokoro, T. Midorikawa and T. Saino (2004): Increased stratification and decreased lower trophic productivity in the Oyashio region of the North Pacific - a 30-year retrospective study -. J. Oceanogr., 60, 149-162.
  4. Chiba, S., K. Tadokoro, H. Sugisaki and T. Saino (2006): Effects of decadal climate change on zooplankton over the last 50 years in the western subarctic North Pacific. Global Change Biol., 12, 907-920.
  5. Fujii, M., Y. Yamanaka, Y. Nojiri, M. J. Kishi and F. Chai (2006): Comparison of seasonal characteristics in biogeochemistry among the subarctic North Pacific stations described with a NEMURO-based marine ecosystem model. Ecol. Model., 202, 52-67
  6. Harrison, P. J., F. Whitney, A. Tsuda, H. Saito and K. Tadokoro (2004): Nutrient and plankton dynamics in the NE and NW gyres of the subarctic North Pacific. J. Oceanogr., 60, 93-117.
  7. Hattori, A., M. Koike, K. Tachikawa, H. Saito and K. Nagasawa (2004): Spatial variability of living coccolithophore distribution in the western subarctic Pacific and the Bering Sea. J. Oceanogr., 60, 505-515.
  8. Itou, M., T. Ono and S. Noriki (2003): Provenance of intermediate waters in the western North Pacific deduced from thermodynamic imprint on d13C(TCO2). J. Geophys. Res., 108, 10.1029/2002JC001746.
  9. Kasai, H., H. Saito and A. Tsuda (1998): Estimation of standing stock of chlorophyll a net primary production from remote-sensed ocean color in the Oyashio region, the western subarctic Pacific, during the spring bloom in 1997. J. Oceanogr., 53, 527-537.
  10. Kasai, H., H. Saito, A. Yoshimori and S. Taguchi (1997): Variability in timing and magnitude of spring bloom in the Oyashio region, the western subarctic Pacific off Hokkaido, Japan. Fish. Oceanogr., 6, 118-129.
  11. Kasai, H., H. Saito, M. Kashiwai, T. Taneda, A. Kusaka, Y. Kawasaki, T. Kono, S. Taguchi and A. Tsuda (2001): Seasonal and interannual variations in nutrients and plankton in the Oyashio region: A summary of a 10-years observation along the A-line. Bull. Hokkaido Natl. Fish. Res. Inst., 65, 55-134.
  12. Kasai, H. and T. Ono (2007): Has the 1998 regime shift also occurred in the oceanographic conditions and lower trophic ecosystem of the Oyashio region? J. Oceanogr., 661-669.
  13. Kishi, M. J., H. Motono, M. Kashiwai and A. Tsuda (2001): Ecological-physical coupled model with vertical migration of zooplankton in Northwestern Pacific. J. Oceanogr., 57, 499-508.
  14. Kishi, M. J., M. Kashiwai, D. M. Ware, B. A. Megrey, D. L. Eslinger, F. E. Werner, M. Noguchi-Aita, T. Azumaya, M. Fujii, S. Hashimoto, D. Huang, H. Iizumi, Y. Ishida, S. Kang, G. A. Kantakov, H.-C. Kim, K. Komatsu, V. V. Navrotsky, S. L. Smith, K. Tadokoro, A. Tsuda, O. Yamamura, Y. Yamanaka, K. Yokouchi, N. Yoshie, J. Zhang, Y. I. Zuenko and V. I. Zvalinsky (2007): NEMURO - lower trophic level model for the North Pacific marine ecosystem. Ecol. Mod., 202, 12-25.
  15. Kobari, T., A. Shinada and A. Tsuda (2002): Functional roles of interzonal migrating mesozooplankton in the western subarctic Pacific. Prog. Oceanogr. 57, 279-298.
  16. Kuroda, H. and M. J. Kishi (2004): A data assimilation technique applied to estimate parameters for the NEMURO marine ecosystem model. Ecol. Mod., 172, 69-85.
  17. Limsakul, A., T. Saino, J. I. Goes and T. Midorikawa (2002): Seasonal variability in the lower trophic level environments of the western subtropical Pacific and Oyashio waters - a retrospective study. Deep-Sea Res. II, 49, 5487-5512.
  18. Liu, H., K. Suzuki and H. Saito (2004): The community structure and dynamics of phytoplankton in the western subarctic Pacific Ocean. J. Oceanogr., 60, 119-137.
  19. Moku, M., A. Tsuda and K. Kawaguchi (2003): Spawning season and migration of the myctophid fish Diaphus theta in the western North Pacific. Ichthyological Research 50(1) 52-58
  20. Nishioka, J., T. Ono, H. Saito, T. Nakatsuka, S. Takeda, T. Yoshimura, K. Suzuki, K. Kuma, S. Nakabayashi, D. Tsumune, H. Mitsudera, W. K. Johnson and A. Tsuda (2007): Iron supply to the western subarctic Pacific: Importance of iron export from the Sea of Okhotsk. J. Geophys. Res., 10.1029/2006JC004055. (in press.)
  21. Ohi, N., H. Saito and S. Taguchi (2005): Diel patterns in chlorophyll a specific absorption coefficient and absorption efficiency factor of picoplankton. J. Oceanogr., 61, 379-388.
  22. Ono, T., T. Saino, N. Kurita and K. Sasaki (2004): Basin-scale extrapolation of shipboard pCO2 data by using satellite SST and Chla. Int. J. Rem. Sens., 25, 3803-3815.
  23. Ono, T., K. Sasaki and I. Yasuda (2003): Re-estimation of annual anthropogenic carbon input into North Pacific Intermediate Water. J. Oceanogr., 59, 883-891.
  24. Ono, T., Y. W. Watanabe and K. Sasaki (2000): Annual anthropogenic carbon transport into the North Pacific Intermediate Water through the Kuroshio/Oyashio Interfrontal Zone: An estimation derived from CFCs distribution. J. Oceanogr, 56, 675-689.
  25. Ono, T., I. Yasuda, H. Narita and S. Tsunogai (1998): Chemical alternation of waters in the Kuroshio/Oyashio Interfrontal Zone. J. Oceanogr., 54, 681-694.
  26. Ono, T., K. Tadokoro, T. Midorikawa, J. Nishioka and T. Saino (2002): Multi-decadal decrease of net community production in western subarctic North Pacific. Geophys. Res. Lett., 29, 10.1029/2001GL014332.
  27. Ono, T., H. Kasai, T. Midorikawa, Y. Takatani, K. Saino, M. Ishii, Y. W. Watanabe and K. Sasaki (2005): Seasonal and interannual variation of DIC in the Oyashio mixed layer: A climatological view. J. Oceanogr., 61, 1075-1088
  28. Saito, H. (1996): Study on the seasonal variability in the productivity of lower-trophic levels and diel feeding rhythm of copepods in the Oyashio region. Bull. Hokkaido Natl. Fish. Res. Inst., 60, 1-144
  29. Saito, H., and A. Tsuda (2003): Influence of light intensity on diatom physiology and nutrient dynamics in the Oyashio region. Prog. Oceanogr., 57, 251-263.
  30. Saito, H., A. Tsuda and H. Kasai (2002): Nutrient and plankton dynamics in the Oyashio region of the western subarctic Pacific Ocean. Deep Sea Res. PartII, 49, 5463-5486.
  31. Saito, H., H. Kasai, M. Kashiwai, Y. Kawasaki, T. Kono, S. Taguchi, A. Tsuda (1998): General description of seasonal variations of nutrients, chlorophyll-a, and net-zooplankton biomass at A-line transect, Oyashio region, from 1990 to 1994. Bull. Hokkaido Natl. Fish. Res. Inst., 62, 1-62
  32. Sakamoto, A., T. Niki and Y. W. Watanabe (2006): Establishment of long-term preservation for dimethyl sulfide by the solid-phase microextraction method. Anal. Chem., 10.1021/ac052294i.
  33. Shinada, A., T. Ikeda, S. Ban and A. Tsuda (2001): Seasonal dynamics of planktonic food chains in the Oyashio region, western subarctic Pacific. J. Plankton Res., 23, 1237-1247.
  34. Tadokoro, K., S. Chiba, T. Ono, T. Midorikawa and T. Saino (2005): Interannual variations of Neocalanus copepods biomass in the Oyashio water, western subarctic North Pacific. Fish. Oceanogr., 14, 210-222
  35. Taguchi, S., H. Saito and H. Kasai (1994): Estimation of vertical distribution of chlorophyll a off east Hokkaido by Gaussian curve fitting. Proceedings of National Institute of Polar Research Symposium on Polar Biology, Vol. 7, 17-31.
  36. Taguchi, S., H. Saito and H. Kasai (1994): Characteristics of ultraviolet radiation penetration in the sea and its effects on marine phytoplankton community in the western subarctic Pacific. Proceedings of the 13th UOEH International Symposium on Impact of Increased UV-B Exposure on Human Health and Ecosystem.
  37. Terazaki, M., H. Saito, H. Kasai, T. Kono, Y. Kawasaki and S. Taguchi (1995): Horizontal distribution and seasonal variability of the epipelagic chaetognath Sagitta elegans in relation to hydrography in the western subarctic Pacific Ocean. Fish. Oceanogr., 4, 158-170.
  38. Tsuda, A., H. Kiyosawa, A. Kuwata, M. Mochizuki, N. Shiga, H. Saito, S. Chiba, K. Imai, J. Nishioka and T. Ono (2005): Responses of diatoms to iron-enrichment(SEEDS) in the western subarctic Pacific, temporal and spatial comparisons. Prog. Oceanogr., 64, 189-205.
  39. Tsuda, A., H. Saito and H. Kasai (2004): Life histries of Eucalanus bungii and Neocalanus cristatus (Calanoida: Copepoda) in the western subarctic Pacific. Fish. Oceanogr., 13, 10-20.
  40. Tsuda, A., H. Saito and H. Kasai (2001): Life history strategies of subarctic copepods Neocalanus flemingeri and N. plumchrus, especially concerning lipid accumulation patterns. Plankton Biology and Ecology, 48, 52-58.
  41. Tsuda, A., H. Saito and H. Kasai (2001): Geographical variation of body size of Neocalanus cristatus, N. plumchrus and N. flemingeri in the subarctic Pacific and its marginal seas: Implication of the origin of large form N. flemingeri in Oyashio area.　J. Oceanogr., 57, 341-352.
  42. Tsuda, A., H. Saito and H. Kasai. (1999): Life histories of Neocalanus flemingeri and Neocalanus plumchrus in the western subarctic Pacific. Mar. Biol.,135, 533-544.
  43. Watanabe, Y. W., H. Yoshinari, A. Sakamoto, Y. Nakano, N. Kasamatsu, T. Midorikawa and T. Ono (2006): Reconstruction of dimethylsulfide in the North Pacific surface water during 1970s to 2000s. Mar. Chem., 103, 347-358.
  44. Watanabe, Y. W., M. Wakita, N. Maeda, T. Ono and T. Gamo (2003): Synchronous bidecadal periodic changes of oxygen, phosphate and temperature between the Japan Sea deep water and the North Pacific intermediate water. Geophys. Res. Lett., 30, 2273. (10.1029/2003GL018338.)
  45. Yamada, Y., T. Ikeda and A. Tsuda (2002): Abundance, growth and life cycle of mesopelagic amphipod Primno abyssalis (Hyperidea: Phrosinidae) in the Oyashio region, western subarctic Pacific. Mar. Biol., 141, 333-341.
  46. Yamanaka, Y., N. Yoshie, M. Fujii, M. N. Aita and M. J. Kishi (2004): An ecosystem model coupled with nitrogen-silicon-carbon cycles applied to Station A7 in the northwestern Pacific. J. Oceanogr., 60, 227-242.
  47. Yoshie, N., Y. Yamanaka, M. J. Kishi and H. Saito (2003): One dimentional ecosystem model simulation of the effects of vertical dilution by the winter mixing on the spring bloom. J. Oceanogr., 59, 563-571.
  48. Yoshie, N., Y. Yamanaka, K. A. Rose, D. L. Eslinger, D. M. Ware and M. J. Kishi (2007): Parameter sensitivity study of the NEMURO lower trophic level marine ecosystem model. Ecol. Mod., 202, 26-37.