Publications

K2 Bibliography

  • 114) Kawakami, H (2024) Decadal decreasing trend in biogeochemical carbon pump estimated from 234Th in the western subarctic North Pacific. J Radioanal Nucl Chem, 333, 1793-1802. https://doi.org/10.1007/s10967-024-09404-x
  • 113) Lange, V, B Fiedler, M Alvarez, A Benoit-Cattin, H Benway, PL Buttigierg, L Coppola, K Curre, S Flecha, MC Honda, IE Huertas, SK Lauvset, F Muller-Karger, A Kortzinger, KM O'Brien, SR Ólafsdóttir, FC Pacheco, D Rueda-Roa, I Skjelvan, M Wakita, A White, T Tanhua (2024) Synthesis product for ocean time-series (SPOTS) - a ship-based biogeochemical pilot. Earth Sys Sci Data, 16, 1901-1931. https://essd.copernicus.org/articles/16/1901/2024/essd-16-1901-2024.pdf
  • 112) Nagashima, K, H Kawakami, K Sugie, T Fujiki, J Nishioka, Y Iwamoto, T Takemura, T Miyakawa, F Taketani, MN Aita (2023) Asian dust-deposition flux to the subarctic Pacific estimated using single quartz particles. Sci Rep, 13, 15424. https://doi.org/10.1038/s41598-023-41201-6
  • 111) Mino, Y, C Sukigara, H Kawakami, M Wakita, MC Honda (2023) Mesopelagic particulate nitrogen in the subarctic and subtropical regions of the western North Pacific. Front Earth Sci, 11, 1176889. https://doi.org/10.3389/feart.2023.1176889
  • 110) Amei, K, R Dobashi, M Kitamura, A Yamaguchi (2023) Diel, seasonal and vertical changes in the abundance, biomass and community structure of pelagic polychaetes at the subtropical station S1 in the western North Pacific: comparison with the results from the subarctic station K2. J Plankton Res, 45, 661-676. https://doi.org/10.1093/plankt/fbad023
  • 109) Taniguchi, R, K Amei, K Tokuhiro, Y Yamada, M Kitamura, A Yamaguchi (2023) Diel, seasonal, and vertical changes in the pelagic amphipod communities in the subarctic Pacific: insights from imaging analysis. J Plankton Res, 45, 554-570. https://doi.org/10.1093/plankt/fbad017
  • 108) Wirtz, K, SL Smith, M Mathis, J Taucher (2022) Vertically migrating phytoplankton fuel high oceanic primary production. Nat Clim Chang, 12, 750-756. https://doi.org/10.1038/s41558-022-01430-5
  • 107) Fujiki, T, S Hosoda, N Harada (2022) Phytoplankton blooms in summer and autumn in the northwestern subarctic Pacific detected by the mooring and float systems. J Oceanogr, 78, 63-72. https://doi.org/10.1007/s10872-021-00628-z
  • 106) Sasai, Y, SL Smith, E Siswanto, H Sasaki, M Nonaka (2022) Physiological flexibility of phytoplankton impacts modeled chlorophyll and primary production across the North Pacific Ocean. Biogeosciences, 19, 4865-4882. https://doi.org/10.5194/bg-19-4865-2022
  • 105) Yoshikawa, C, NO Ogawa, Y Chikaraishi, A Makabe, Y Matsui, Y Sasai, M Wakita, MC Honda, Y Mino, MN Aita, T Fujiki, T Nunoura, N Harada, N. Ohkouchi (2022) Nitrogen isotopes of sinking particles reveal the seasonal transition of the nitrogen source for phytoplankton. Geophys Res Lett, 49, e2022GL098670. https://doi.org/10.1029/2022GL098670
  • 104) van Beek, P, R Francois, MC Honda, M Charette, J-L Reyss, R Ganeshram, C Monnin, S Honjo (2022) Fractionation of 226Ra and Ba in the upper North Pacific Ocean. Frontiers Mar Sci, 9, 859117. https://doi.org/10.3389/fmars.2022.859117
  • 103) Dobashi, R, H Ueno, N Matsudera, I Fujita, T Fujiki, MC Honda, N Harada (2022) Impact of mesoscale eddies on particulate organic carbon flux in the western subarctic North Pacific. J Oceanogr, 78, 1-14. (for this paper, Dr. Dobashi received the Young Author Award from the Oceanographic Society of Japan) https://doi.org/10.1007/s10872-021-00620-7
  • 102) Kobari, T, R Nakamura, MN Aita, M Kitamura (2022) Mesopelagic community supported by epipelagic production in the western North Pacific Ocean based on stable isotope ratios of carbon and nitrogen. Deep Sea Res I, 182, 103722. https://doi.org/10.1016/j.dsr.2022.103722
  • 101) Amei, K, R Dobashi, N Jimi, M Kitamura, A Yamaguchi (2021) Vertical changes in abundance, biomass and community structure of pelagic polychaetes down to 1000 m depths at station K2 in the western subarctic Pacific Ocean covering the four seasons and day-night. J Plankton Res, 43, 442-457. https://doi.org/10.1093/plankt/fbab031
  • 100) Nagano, A, M Wakita, T Fujiki and H Uchida (2021) El Niño related vertical mixing enhancement under the winter mixed layer at western subarctic North Pacific station K2. J Geophys Res Oceans, 126, e2020JC016913. https://doi.org/10.1029/2020JC016913
  • 99) Shiozaki, T, F Itoh, Y Hirose, J Onodera, A Kuwata, N Harada (2021) A DNA metabarcoding approach for recovering plankton communities from archived samples fixed in formalin. PLoS ONE, 16(2), e0245936. https://doi.org/10.1371/journal.pone.0245936
  • 99) Cael, BB, L Bisson, M Conte, MT Duret, CL Follett, SA Henson, MC Honda, MH Iversen, DM Karl, RS Lampitt, CB Mouw, F Muller-Karger, CA Pebody, KL Smith Jr, D Talmy (2021) Open ocean particle flux variability from surface to seafloor. Geophysical Research Letters, 48, e2021GL092895. https://doi.org/10.1029/2021GL092895
  • 97) Puigcorbé, V, P Masqué, FAC Le Moigne (2020) Global database of ratios of particulate organic carbon to thorium-234 in the ocean: improving estimates of the biological carbon pump. Earth Syst Sci Data, 12, 1267-1285.
  • 96) Wirtz, K, SL Smith (2020) Vertical migration by bulk phytoplankton sustains biodiversity and nutrient input to the surface ocean. Sci Rep, 10, 1142. https://doi.org/10.1038/s41598-020-57890-2
  • 95) Honda, MC (2020) Effective Vertical Transport of Particulate Organic Carbon in the Western North Pacific Subarctic Region. Frontiers Earth Sci, 8, 366. https://doi.org/10.3389/feart.2020.00366
  • 94) Amei, K, N Jimi, M Kitamura, N Yokoi, A Yamaguchi (2020) Community structure and seasonal changes in population structure of pelagic polychaetes collected by sediment traps moored in the subarctic and subtropical western North Pacific Ocean. Zoosymposia, 19, 41-50. https://doi.org/10.11646/zoosymposia.19.1.9
  • 93) Kitamura, M, N Murata (2020) Seasonal occurrence and vertical distribution of larval and juvenile northern smoothtongue, Leuroglossus schmidti (Pisces, Bathylagidae), in the western subarctic Pacific. J Mar Biol Ass UK, 100, 969-977. https://doi.org/10.1017/S002531542000082X
  • 92) Uchida, H, T Kawano, T Nakano, M Wakita, T Tanaka, S Tanihara (2020) An expanded batch-to-batch correction for IAPSO Standard Seawater. J Atmos Oceanic Technol, 37, 1507-1520. https://doi.org/10.1175/JTECH-D-19-0184.1
  • 91) Breider, F, C Yoshikawa, A Makabe, S Toyoda, M Wakita, Y Matsui, S Kawagucci, T Fujiki, N Harada, N Yoshida (2019) Response of N2O production rate to ocean acidification in the western North Pacific. Nat Clim Chang, 9, 954-958. https://doi.org/10.1038/s41558-019-0605-7
  • 90) Iwasaki, S, K Kimoto, O Sasaki, H Uchida (2019) Sensitivity of planktic foraminiferal test bulk density to ocean acidification. Sci Rep, 9, 9803. https://doi.org/10.1038/s41598-019-46041-x
  • 89) Ikenoue, T, K Kimoto, Y Okazaki, M Sato, MC Honda, K Takahashi, N Harada, T Fujiki (2019) Phaeodaria: An important carrier of particulate organic carbon in the mesopelagic twilight zone of the North Pacific Ocean. Global Biogeochem Cycles, 33, 1146-1160. https://doi.org/10.1029/2019GB006258
  • 88) Nagano, A, M Wakita (2019) Wind-driven decadal sea surface height and main pycnocline depth changes in the western subarctic North Pacific. Prog Earth Planet Sci, 6, 59. https://doi.org/10.1186/s40645-019-0303-0
  • 87) Sukigara, C, Y Mino, H Kawakami, MC Honda, T Fujiki, K Matsumoto, M Wakita, T Saino (2019) Sinking dynamics of particulate matter in the subarctic and subtropical regions of the western North Pacific. Deep Sea Res I, 144, 17-27. https://doi.org/10.1016/j.dsr.2018.11.004
  • 86) Chen, B, SL Smith (2018) CITRATE 1.0: Phytoplankton continuous trait-distribution model with one-dimensional physical transport applied to the North Pacific. Geosci Model Dev, 11, 467-495. https://doi.org/10.5194/gmd-11-467-2018
  • 85) Shimizu, K, K Kimoto, K Noshita, M Wakita, T Fujiki, T Sasaki (2018) Phylogeography of the pelagic snails Limacina helicina (Gastropoda: Thecosomata) in the subarctic western North Pacific. J Molluscan Studies, 84, 30-37. https://doi.org/10.1093/mollus/eyx040
  • 84) Yokoi, N, Y Abe, M Kitamura, MC Honda, A Yamaguchi (2018) Comparisons between POC and zooplankton swimmer flux from sediment traps in the subarctic and subtropical North Pacific. Deep Sea Res I, 133, 19-26. https://doi.org/10.1016/j.dsr.2018.01.003
  • 83) Uchimiya, M, H Fukuda, M Wakita, M Kitamura, H Kawakami, MC Honda, H Ogawa, T Nagata (2018) Balancing organic carbon supply and consumption in the ocean’s interior: evidence from repeated biogeochemical observations conducted in the subarctic and subtropical western North Pacific. Limnol Oceanogr, 63, 2015-2027. https://doi.org/10.1002/lno.10821
  • 82) Watanabe, YW, BF Li, M Wakita (2018) Long-term trends of direct and indirect anthropogenic effects on changes in ocean pH. Geophysi Res Lett, 45. https://doi.org/10.1029/2018GL078084
  • 81) Yasunaka, S, Y Nojiri, T Hashioka, C Yoshikawa, T Kodama, S Nakaoka, S Chiba, F Hashihama, M Wakita, K Furuya, D Sasano, A Murata, H Uchida, M Aoyama (2018) Basin-scale distribution of NH4+ and NO2- in the Pacific Ocean. J Oceanogr, 74, 1-11. https://doi.org/10.1007/s10872-017-0433-1
  • 80) Nakamura, Y, R Somiya, N Suzuki, M Hidaka-Umetsu, A Yamaguchi, DJ Lindsay (2017) Optics-based surveys of large unicellular zooplankton: a case study on radiolarians and phaeodarians. Plankton Benthos Res, 12, 95-103. https://www.jstage.jst.go.jp/article/pbr/12/2/12_P120203/_pdf/-char/ja
  • 79) Iwasaki, S, K Kimoto, A Kuroyanagi, H Kawahata (2017) Horizontal and vertical distributions of planktic foraminifera in the subarctic Pacific. Mar Micropaleo, 130, 1-14. https://doi.org/10.1016/j.marmicro.2016.12.001
  • 78) Wakita, M, A Nagano, T Fujiki, S Watanabe (2017) Slow acidification of the winter mixed layer in the subarctic western North Pacific. J Geophys Res Oceans, 122, 6923-6935. https://doi.org/10.1002/2017JC013002
  • 77) Kitamura, M, MC Honda, Y Hamajima, Y Kumamoto, M Aoyama, H Kawakami, T Aono, M Fukuda, Y Mino (2017) Temporal changes in radiocesium contamination derived from the Fukushima Dai-ichi Nuclear Power Plant accident in oceanic zooplankton in the western North Pacific. J Environ Radioact, 172, 163-172. https://doi.org/10.1016/j.jenvrad.2017.03.024
  • 76) Kobari, T, S Miyake, WT Peterson, J Peterson, T Shaw (2017) Nucleic acid ratio as a proxy for starvation of coastal and pelagic copepods in the North Pacific Ocean. Plankton Benthos Res, 12, 25-33. https://doi.org/10.3800/pbr.12.25
  • 75) Honda, MC, M Wakita, K Matsumoto, T Fujiki, E Siswanto, K Sasaoka, H Kawakami, Y Mino, C Sukigara, M Kitamura, Y Sasai, SL Smith, T Hashioka, C Yoshikawa, K Kimoto, S Watanabe, T Kobari, T Nagata, K Hamasaki, R Kaneko, M Uchimiya, H Fukuda, O Abe, T Saino (2017) Comparison of carbon cycle between the western Pacific subarctic and subtropical time-series stations: highlights of K2S1 project. J Oceanogr, 73, 647-667. https://doi.org/10.1007/s10872-017-0423-3
  • 74) Mouw, CB, A Barnett, GA McKinley, L Gloege, D Pilcher (2016) Global ocean particulate organic carbon flux merged with satellite parameters. Earth Syst Sci Data, 8, 531-541. https://doi.org/10.5194/essd-8-531-2016
  • 73) Matsumoto, K, O Abe, T Fujiki, C Sukigara, Y Mino (2016) Primary productivity at the time-series stations in the northwestern Pacific Ocean: Is the subtropical station unproductive? J Oceanogr, 72, 359-371. https://doi.org/10.1007/s10872-016-0354-4
  • 72) Wakita, M, MC Honda, K Matsumoto, T Fujiki, H Kawakami, S Yasunaka, Y Sasai, C Sukigara, M Uchimiya, M Kitamura, T Kobari, Y Mino, A Nagano, S Watanabe, T Saino (2016) Biological organic carbon export estimated from the annual carbon budget observed in the surface waters of the western subarctic and subtropical North Pacific Ocean from 2004 to 2013. J Oceanogr, 72, 665-685. https://doi.org/10.1007/s10872-016-0379-8
  • 71) Honda, MC, H Kawakami, K Matsumoto, M Wakita, T Fujiki, Y Mino, C Sukigara, T Kobari, M Uchimiya, R Kaneko, T Saino (2016) Comparison of sinking particles in the upper 200 m between subarctic station K2 and subtropical station S1 based on drifting sediment trap experiments. J Oceanogr, 72, 373-386. https://doi.org/10.1007/s10872-015-0280-x
  • 70) Mino, Y, C Sukigara, MC.Honda, H Kawakami, K Matsumoto, M Wakita, M Kitamura, T Fujiki, K Sasaoka, O Abe, J Kaiser, T Saino (2016) Seasonal variations in the nitrogen isotopic composition of settling particle at station K2 in the western subarctic North Pacific. J Oceanogr, 72, 819-836. https://doi.org/10.1007/s10872-016-0381-1
  • 69) Kitamura, M, T Kobari, MC Honda, K Matsumoto, K Sasaoka, R Nakamura, K Tanabe (2016) Seasonal changes in the mesozooplankton biomass and community structure in subarctic and subtropical time-series stations in the western North Pacific. J Oceanogr, 72, 387-402. https://doi.org/10.1007/s10872-015-0347-8
  • 68) Kobari, T, R Nakamura, K Unno, M Kitamura, K Tanabe, H Nagafuku, A Niibo, H Kawakami, K Matsumoto, MC Honda (2016) Seasonal variability in carbon demand and flux of mesozooplankton communities at subarctic and subtropical sites in the western North Pacific Ocean. J Oceanogr, 72, 403-418. https://doi.org/10.1007/s10872-015-0348-7
  • 67) Uchimiya, M, H Ogawa, T Nagata (2016) Effects of temperature elevation and glucose addition on prokaryotic production and respiration in the mesopelagic layer of the western North Pacific. J Oceanogr, 72, 419-426. https://doi.org/10.1007/s10872-015-0294-4
  • 66) Kaneko, R, T Nagata, S Suzuki, K Hamasaki (2016) Depth‐dependent and seasonal variability in archaeal community structure in the subarctic and subtropical western North Pacific. J Oceanogr, 72, 427-438. https://doi.org/10.1007/s10872-016-0372-2
  • 65) Siswanto, E, MC Honda, Y Sasai, K Sasaoka, T Saino (2016) Meridional and seasonal footprints of the Pacific Decadal Oscillation on phytoplankton biomass in the northwestern Pacific Ocean. J Oceanogr, 72, 465-477. https://doi.org/10.1007/s10872-016-0367-z
  • 64) Siswanto, E, MC Honda, K Matsumoto, Y Sasai, T Fujiki, K Sasaoka, T Saino (2016) Sixteen‐year phytoplankton biomass trends in the northwestern Pacific Ocean observed by the SeaWiFS and MODIS ocean color sensors. J Oceanogr, 72, 479-498. https://doi.org/10.1007/s10872-016-0357-1
  • 63) Yoshikawa, C, H Abe, MN. Aita, F Breider, K Kuzunuki, S Toyoda, NO Ogawa, H Suga, N Ohkouchi, SO Danielache, M Wakita, MC. Honda, N Yoshida (2016) Insight into nitrous oxide production processes in the western North Pacific based on a marine ecosystem isotopomer model. J Oceanogr, 72, 491-508. https://doi.org/10.1007/s10872-015-0308-2
  • 62) Sasai, Y, C Yoshikawa, SL Smith, T Hashioka, K Matsumoto, M Wakita, K Sasaoka, MC Honda (2016) Coupled 1‐D physical–biological model study of phytoplankton production at two contrasting time‐series stations in the western North Pacific. J Oceanogr, 72, 509-52. https://doi.org/10.1007/s10872-015-0341-1
  • 61) Azimuddin, KM, J Hirai, S Suzuki, MN Haider, A Tachibana, K Watanabe, M Kitamura, F Hashihama, K Takahashi, K Hamasaki (2016) Possible association of diazotrophs with marine zooplankton in the Pacific Ocean. MicrobiologyOpen, 5, 1016-1026. https://doi.org/10.1002/mbo3.385
  • 60) Nagano, A, M Wakita, S Watanabe (2016) Dichothermal layer deepening in relation with halocline depth change associated with northward shrinkage of North Pacific western subarctic gyre in early 2000s. Ocean Dynamics, 66, 163-172. https://doi.org/10.1007/s10236-015-0917-8
  • 59) Smith, SL, M Pahlow, A Merico, E Acevedo-Trejos, Y Sasai, C Yoshikawa, K Sasaoka, T Fujiki, K Matsumoto, MC Honda (2016) Flexible phytoplankton functional type (FlexPFT) model: size-scaling of traits and optimal growth. J Plankton Res, 38, 977-992. https://doi.org/10.1093/plankt/fbv038
  • 58) Aoyama, M, M Hult, Y Hamajima, G Lutter, G Marissens, H Stroh, F Tzika (2016) Tracking radioactivity from Fukushima in the northern Pacific Ocean. App. Radiation Isotopes, 109, 435-440. https://doi.org/10.1016/j.apradiso.2015.11.103
  • 57) Kawakami, H, MC Honda, K Matsumoto, M Wakita, M Kitamura, T Fujiki, S Watanabe (2015) POC fluxes estimated 234Th in late spring-early summer in the western subarctic North Pacific. J Oceanogr, 71, 311-324. https://doi.org/10.1007/s10872-015-0290-8
  • 56) Siswanto, E, K Matsumoto, MC Honda, T Fujiki, K Sasaoka, T Saino (2015) Reappraisal of meridional differences of factors controlling phytoplankton biomass and initial increase preceding seasonal bloom in the northwestern Pacific Ocean. Remote Sens Environ, 159, 44-56. https://doi.org/10.1016/j.rse.2014.11.028
  • 55) Buesseler, KO, CR German, MC Honda, S Otosaka, EE Black, H Kawakami, SJ Manganini, SM Pike (2015) Tracking the fate of particle associated Fukushima Daiichi cesium in the ocean off Japan. Environ Sci Tech, 49, 9807-9816. https://doi.org/10.1021/acs.est.5b02635
  • 54) Kim, T-W, GH Park, D Kim, K Lee, RA Feely, FJ Millero (2015) Seasonal variations in the aragonite saturation state in the upper open-ocean waters of the North Pacific Ocean. Geophys Res Lett, 42, 4498-4506. https://doi.org/10.1002/2015GL063602
  • 53) Honda, MC (2015) Observational study of artificial radionuclides emitted from the nuclear power plant accident by using time-series sediment trap. Chikyukagaku (Geochemistry), 49, 227-238. https://doi:10.14934/chikyukagaku.49.227 (in Japanese with English abstract)
  • 52) Honda, MC, H Kawakami (2014) Sinking velocity of particulate radiocesium in the northwestern North Pacific. Geophys Res Lett, 41, 3959-3965. https://doi.org/10.1002/2014GL060126
  • 51) Fujiki, T, K Matsumoto, Y Mino, K Sasaoka, M Wakita, H Kawakami, MC Honda, S Watanabe, T Saino (2014) Seasonal cycle of phytoplankton community structure and photophysiological state in the western subarctic gyre of the North Pacific. ,Limnol Oceanogr, 59, 887-900. https://doi.org/10.4319/lo.2014.59.3.0887
  • 50) Matsumoto, K, MC Honda, K Sasaoka, M Wakita, H Kawakami, S Watanabe (2014) Seasonal variability of primary production and phytoplankton biomass in the western Pacific subarctic gyre: Control by light availability within the mixed layer. J Geophys Res Oceans, 119, 6523-6534. https://doi.org/10.1002/2014JC009982
  • 49) Kawakami, H, MC Honda, S Watanabe, T Saino (2014) Time-series observations of 210Po and 210Pb radioactivity in the western North Pacific. J Radioanal Nucl Chem, 301, 461-468. https://doi.org/10.1007/s10967-014-3141-y
  • 48) Onodera, J, A Ohashi, K Takahashi, MC Honda (2014) Time-series variation of diatom valve fluxes at Station K2 in the western subarctic Pacific. Diatom, 30, 104-121. https://doi.org/10.11464/diatom.30.104 (in Japanese with English abstract)
  • 47) Iwamoto, Y, M Uematsu (2014) Spatial variation of biogenic and crustal elements in suspended particulate matter from surface waters of the north Pacific and its marginal seas. Prog Oceanogr, 126, 211-223. http://dx.doi.org/10.1016/j.pocean.2014.04.019
  • 46) Onodera J (2013) Sinking flux and paleoceanographic study of diatoms and silicoflagellates in the western North pacific, Bering Sea, and the Arctic Ocean. Umi no kenkyuu (Oceanography in Japan), 22, 47-69. (in Japanese with English abstract, this is a memorial paper for the Okada Prize awarded by the Oceanographical Society of Japan) https://www.jstage.jst.go.jp/article/kaiyou/22/2/22_47/_pdf
  • 45) Honda, MC, H Kawakami, S Watanabe, T Saino (2013) Concentration and vertical flux of Fukushima-derived radiocesium in sinking particles from two sites in the northwestern North Pacific. Biogeosciences, 10, 3525-3534. https://doi.org/10.5194/bg-10-3525-2013
  • 44) Kobari, T, M Kitamura, M Minowa, H Isami, H Akamatsu, H Kawakami, K Matsumoto, M Wakita, MC Honda (2013) Impacts of the wintertime mesozooplankton community to downward carbon flux in the subarctic and subtropical Pacific Oceans. Deep Sea Res I, 81, 78-88. https://doi.org/10.1016/j.dsr.2013.07.003
  • 43) Wakita, M, S Watanabe, M Honda, A Nagano, K Kimoto, K Matsumoto, M Kitamura, K Sasaki, H Kawakami, T Fujiki, K Sasaoka, Y Nakano, A Murata (2013) Ocean acidification from 1997 to 2011 in the subarctic western North Pacific Ocean. Biogeosciences, 10, 7817-7827. https://doi.org/10.5194/bg-10-7817-2013
  • 42) Honda, MC, T Aono, M Aoyama, Y Hamajima, H Kawakami, M Kitamura, Y Masumoto, Y Miyazawa, M Takigawa, T Saino (2012) Dispersion of artificial caesium-134 and -137 in the western North Pacific one month after the Fukushima accident. Geochem J, 46, e1-e9. https://doi.org/10.2343/geochemj.1.0152
  • 41) Matsumoto, K, T Fujiki, MC Honda, M Wakita, H Kawakami, M Kitamura, T Saino (2012) Inhibition of primary production by nitril rubber O-rings in Niskin sampler. JAMSTEC Rep. Res. Dev., 14, 17-25. (inJapanese with English abstract) https://www.jstage.jst.go.jp/article/jamstecr/14/0/14_0_17/_pdf
  • 40) Fujiki, T, K Matsumoto, S Watanabe, T Hosaka, T Saino (2011) Phytoplankton productivity in the western subarctic gyre of the North Pacific in early summer 2006. J Oceanogr, 67, 259-303. https://doi.org/10.1007/s10872-011-0028-1
  • 39) Baeyens, W, AR Bowie, KO Buesseler, M Elskens, Y Gao, C Lamborg, M Leermarkers, T Remenyi, H Zhang (2011) Size-fractionated labile trace elements in the northwest Pacific and Southern oceans. Mar Chem, 126, 108-113. https://doi.org/10.1016/j.marchem.2011.04.004
  • 38) Ohashi, R, K Ishii, T Fujiki, M Kitamura, K Matsumoto, MC Honda, A Yamaguchi (2011) Short-term changes in the planktonic community of the western subarctic Pacific during early summer: analysis of sediment trap samples. Bull Plankton Soc Japan, 58, 123-135. (in Japanese with English abstract)
  • 37) Wilson, SE, DK Steinberg (2010) Autotrophic picoplankton in mesozooplankton guts: evidence of aggregate feeding in the mesopelagic zone and export of small phytoplankton. Mar Ecol Prog Ser, 412, 11-27. https://doi.org/10.3354/meps08648
  • 36) Wilson, SE, DK Steinberg, FLE Chu, JKB Bishop (2010) Feeding ecology of mesopelagic zooplankton of the subtropical and subarctic North Pacific Ocean determined with fatty acid biomarkers. Deep Sea Res I, 57, 1278-1294. https://doi.org/10.1016/j.dsr.2010.07.005
  • 35) Wakita, M, S Watanabe, A Murata, N Tsurushima, M Honda (2010) Decadal change of dissolved inorganic carbon in the subarctic western North Pacific Ocean. Tellus B, 62, 608-620. https://doi.org/10.1111/j.1600-0889.2010.00476.x
  • 34) Kawakami, H, MC Honda, K Matsumoto, T Fujiki, S Watanabe (2010) East-west distribution of POC fluxes estimated from 234Th in the northern North Pacific in autumn. J Oceanogr, 66, 71-83. https://doi.org/10.1007/s10872-010-0006-z
  • 33) Kawakami, H, MC Honda, K Matsumoto, T Fujiki, S Watanabe (2010) East-west distribution of nutrients and dissolved inorganic carbon in the northern North Pacific in autumn. The Open Oceanography Journal, 4, 99-106. https://doi.org/10.2174/1874252101004010099
  • 32) Silver, MW, S Bargu, SL Coale, CR Benitez-Nelson, AC Garcia, KJ Roberts, E Sekula-Wood, KW Bruland, KH Coale (2010) Toxic diatoms and domoic acid in natural and iron enriched waters of the oceanic Pacific. PNAS, 107, 20762-20767. https://doi.org/10.1073/pnas.1006968107
  • 31) Tanaka,T, S. Otosaka, M. Wakita, H. Amano, O. Togawa (2010) Preliminary result of dissolved organic radiocarbon in the western North Pacific Ocean. Nuclear Inst. and Methods in Physics Research B, 268, 1219-1221. https://doi.org/10.1016/j.nimb.2009.10.137
  • 30) Honda, MC, Watanabe, S (2010) Importance of biogenic opal as ballast of particulate organic carbon (POC) transport and existence of mineral ballast-associated and residual POC in the Western Pacific Subarctic Gyre. Geophys Res Lett, 37. L02605. https://doi.org/10.1029/2009GL041521
  • 29) Sarma, VVSS, O Abe, MC Honda, T Saino (2010) Estimating of gas transfer velocity using triple isotopes of dissolved oxygen. J Oceanogr, 66, 505-512. https://doi.org/10.1007/s10872-010-0042-8
  • 28) Shigemitsu, M, YW Watanabe, Y Yamanaka, H Kawakami, MC Honda (2010) Relationship between sinking organic matter and minerals in the shallow zone of the western subarctic Pacific. J Oceanogr, 66, 697-708. https://doi.org/10.1007/s10872-010-0057-1
  • 27) Zhabin, IA, VB Lobanov, S Watanabe, M Wakita, SN Taranova (2010) Water Exchange between the Bering Sea and the Pacific Ocean through the Kamchatka Strait. Russian Meteorology and Hydrology, 35(3), 218–224. https://doi.org/10.3103/S106837391003009X
  • 26) Ikenoue, T, K Takahashi, Y Ishitani, S Tanaka (2010) Seasonal flux changes of radiolarians at Station K2 in the Western Subarctic Gyre. Umi no kenkyuu (Oceanography in Japan), 19, 165-185. (in Japanese with English abstract) https://doi.org/10.5928/kaiyou.19.4_165
  • 25) Buesseler, KO, S Pike, K Maiti, CH Lamborg, DA Siegel, TW Trull (2009) Thorium-234 as a tracer of spatial, temporal and vertical variability in particle flux in the North Pacific. Deep Sea Res I, 56, 1143-1167. https://doi.org/10.1016/j.dsr.2009.04.001
  • 24) Honda, MC, K Sasaoka, H Kawakami, K Matsumoto, S Watanabe, TD Dickey (2009) Application of underwater optical data to estimation of primary productivity. Deep Sea Res I, 56, 2281-2292. https://doi.org/10.1016/j.dsr.2009.08.009
  • 23) Fujiki, T, K Matsumoto, MC Honda, H Kawakami, S Watanabe (2009) Phytoplankton composition in the subarctic North Pacific during autumn 2005. J Plankton Res, 31, 179-191. https://doi.org/10.1093/plankt/fbn108
  • 22) Bishop, JKB, TJ. Wood (2008) Particulate matter chemistry and dynamics in the twilight zone at VERTIGO ALOHA and K2 sites. Deep Sea Res I, 55, 1648-1706. https://doi.org/10.1016/j.dsr.2008.07.012
  • 21) Steinberg DK, BAS Van Mooy, KO Buesseler, PW Boyd, T Kobari, DM Karl (2008) Bacterial vs. zooplankton control of sinking particle flux in the ocean’s twilight zone. Limnol. Oceanogr, 53, 1327-1338. https://doi.org/10.4319/lo.2008.53.4.1327
  • 20) Buesseler, KO, RS Lampitt (2008) Introduction to “Understanding the Ocean’s biological pump: results from VERTIGO”. Deep Sea Res II, 55, 1519-1521. https://doi.org/10.1016/j.dsr2.2008.04.009
  • 19) Buesseler, KO, TW Trull, DK Steinberg, MW Silver, DA Siegel, S Saitoh, CH Lamborg, PJ Lam, DM Karl, NZ Jiao, MC Honda, M Elskens, F Dehairs, SL Brown, PW Boyd, JKB Bishop, RR Bidigare (2008) VERTIGO (VERtical Transport In the Global Ocean): A study of particle sources and flux attenuation in the North Pacific. Deep Sea Res II, 55, 1522-1539. https://doi.org/10.1016/j.dsr2.2008.04.024
  • 18) Lamborg, CH, KO Buesseler, J Valdes, CH Bertrand, R Bidigare, S Manganini, S. Pike, D Steinberg, T Trull, S Wilson (2008) The flux of bio- and lithogenic material associated with sinking particles in the mesopelagic “twilight zone” of the northwest and North Central Pacific Ocean. Deep Sea Res II, 55, 1540-1563. https://doi.org/10.1016/j.dsr2.2008.04.011
  • 17) Lemborg CH, KO Buesseler, PJ Lam (2008) Sinking fluxes of minor and trace elements in the North Pacific Ocean measured during VERTIGO program. Deep Sea Res II, 55, 1564-1577. https://doi.org/10.1016/j.dsr2.2008.04.012
  • 16) Boyd, PW, MP Gall, MW Silver, SL Coale, RB Bidigare, JLKB Bishop (2008) Quantifying the surface-subsurface biogeochemical coupling during the VERTIGO ALOHA and K2 studies. Deep Sea Res II, 55, 1578-1593. https://doi.org/10.1016/j.dsr2.2008.04.010
  • 15) Elskens, M, N Brion, KO Buesseler, BAS Van Mooy, P Boyd, F Dehairs, N Savoye, W Baeyens (2008) Primary, new and export production in the NW Pacific subarctic gyre during the vertigo K2 experiments. Deep Sea Res II, 55, 1594-1604. https://doi.org/10.1016/j.dsr2.2008.04.013
  • 14) Zhang, Y, N Jiao, N Hong (2008) Comparative study of picoplankton biomass and community structure in different provinces from subarctic to subtropical oceans. Deep Sea Res II, 55, 1605-1614. https://doi.org/10.1016/j.dsr2.2008.04.014
  • 13) Steinberg, DK, JS Cope, SE Wilson, T Kobari (2008) A comparison of mesopelagic mesozooplankton community structure in the subtropical and subarctic North Pacific Ocean. Deep Sea Res II, 55, 1615-1635. https://doi.org/10.1016/j.dsr2.2008.04.025
  • 12) Wilson, SE, DK Steinberg, KO Buesseler (2008) Changes in fecal pellet characteristics with depth as indicators of zooplankton repackaging of particles in the mesopelagic zone of the subtropical and subarctic North Pacific Ocean. Deep sea Res II, 55, 1636-1647. https://doi.org/10.1016/j.dsr2.2008.04.019
  • 11) Kobari, T, DK Steinberg, A Ueda, A Tsuda, MW Silver, M Kitamura (2008) Impacts of ontogenetically migrating copepods on downward carbon flux in the western subarctic Pacific Ocean. Deep Sea Res II, 55, 1648-1660. https://doi.org/10.1016/j.dsr2.2008.04.016
  • 10) Dehairs, F, S Jacquet, N Savoye, BAS Van Mooy, KO Buesseler, JKB Bishop, CH Lamborg, M Elskens, W Baeyens, PW Boyd, KL Casciotti, C Monnin (2008) Barium in twilight zone suspended matter as a potential proxy for particulate organic carbon remineralization: Results for the North Pacific. Deep Sea Res II, 55, 1673-1683. https://doi.org/10.1016/j.dsr2.2008.04.020
  • 9) Trull, TW, SG Bray, KO Buesseler, CH Lamborg, S Manganini, C Moy, J Valdes (2008) In situ measurement of mesopelagic particle sinking rates and the control of carbon transfer to the ocean interior during the Vertical Flux in the Global Ocean (VARTIGO) voyages in North Pacific. Deep Sea Res II, 55, 1684-1695. https://doi.org/10.1016/j.dsr2.2008.04.021
  • 8) Lam, PJ, JKB Bishop (2008) The continental margin is a key source of iron to the HNLC North Pacific Ocean. Geophys Res Lett, 35, L07608. https://doi.org/10.1029/2008GL033294
  • 7) Firdaus, ML, K Norisuye, Y Nakagawa, S Nakatsuka, Y Sohrin (2008) Dissolved and labile particulate Zr, Hf, Nb, Ta, Mo and W in the western North Pacific Ocean. J Oceanogr, 64, 247-257. https://doi.org/10.1007/s10872-008-0019-z
  • 6) Buesseler, KO, CH Lamborg, PW Boyd, PJ Lam, TW Trull, RR Bidigare, JKB Bishop, KL Casciotti, F Dehairs, M Elskens, M Honda, DK Karl, DA Siegel, MW Silver, DK Steinberg, J Valdes, B Van Mooy, S Wilson (2007) Revisiting carbon flux through the ocean’s twilight zone. Science, 316, 567-570. https://doi.org/10.1126/science.1137959
  • 5) Kawakami, H, MC Honda (2007) Time-series observation of POC fluxes estimated from 234Th in the northwestern North Pacific. Deep Sea Res I, 54, 1070-1090. https://doi.org/10.1016/j.dsr.2007.04.005
  • 4) Honda, MC, S Watanabe (2007) Utility of an automatic sampler to observe seasonal variability in nutrients and DIC in the northwestern North Pacific. J Oceanogr, 63, 349-362. https://doi.org/10.1007/s10872-007-0034-5
  • 3) Kawakami, H, MC Honda, M Wakita, S Watanabe (2007) Time-series observation of dissolved inorganic carbon and nutrients in the northwestern North Pacific. J Oceanogr, 63, 967-982. https://doi.org/10.1007/s10872-007-0081-y
  • 2) Honda, MC, H Kawakami, K Sasaoka, S Watanabe, T Dickey (2006) Quick transport of primary produced organic carbon to the ocean interior. Geophys Res Lett, 33, L16603. https://doi.org/10.1029/2006GL026466
  • 1) Harada, N, M Sato, A Shiraishi, MC Honda (2006) Characteristics of alkenonedistributions in suspended and sinking particles in the northwestern North Pacific. Geochimica Cosmochimica Acta, 70, 2045-2062. https://doi.org/10.1016/j.gca.2006.01.024