Physical oceanography

Itoh S., Y. Shimizu, S. Ito and I. Yasuda, 2011, Evolution and decay of a warm-core ring within the western subarctic gyre of the North Pacific, as observed by profiling floats, J. Oceanogr., 67, 281-293.

Ito S., N. Yoshie, T. Okunishi, T. Ono, Y. Okazaki, A. Kuwata, T.Hashioka, K. A. Rose, B. A. Megrey, M. J. Kishi, M. Nakamachi, Y.Shimizu, S. Kakehi, H. Saito, K. Takahashi, K. Tadokoro, A. Kusaka, H.Kasai, 2010, Application of an automatic approach to calibrate the NEMURO nutrient-phytoplankton-zooplankton food web model in the Oyashio region, Progr. Oceanogr., 87, 186-200 (doi:10.1016/j.pocean.2010.08.004).

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.

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.

Kono, T. (1997): Modification of the Oyashio Water in the Hokkaido and Tohoku areas. Deep-Sea Res., 44, 669-688.

Kono, T., and Y. Kawasaki (1997): Modification of the western subarctic water by exchange with Okhotsk Sea. Deep-Sea Res, 44, 689-711.

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.

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.

Kono, T., M. Foreman, P. Chandler and M. Kashiwai (2004): Coastal Oyashio south of Hokkaido, Japan. J. Phys. Oceanogr., 34, 1477-1494.

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.

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.

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.

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.

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.

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

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.

Aita, M., K. Tadokoro, N. Ogawa, F. Hyodo, R. Ishii, S. L. Smith, T. Saino, M. J. Kishi, and E. Wada (2011): Linear relationship between carbon, and nitrogen isotope ratios along simple, food chains in marine environments. Journal of Plankton Research, 33, 1629-1642.

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.

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.

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.

Chiba, S., M N. Aita, K. Tadokoro, T. Saino, H. Sugisaki, and K. Nakata (2008): From climate regime shifts to lower-trophic level phenology: Synthesis of recent progress in retrospective studies of the western North Pacific, Prog. Oceanogr., 77, 112-126.

Chiba, S., H. Sugisaki, A. Kuwata, K. Tadokoro, T. Kobari, and A. Yamaguchi (2011): Pan-North Pacific comparison of long-term variation of Neocalanus copepods based on stable isotope analysis. Progress in Oceanography, doi:10.1016/j.pocean.2011.11.007.

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

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.

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.

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.

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.

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.

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.

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.

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.

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.

Kobari, T., A. Shinada and A. Tsuda (2002): Functional roles of interzonal migrating mesozooplankton in the western subarctic Pacific. Prog. Oceanogr. 57, 279-298.

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.

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.

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.

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

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.

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.

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.