Geosciences Journal

The Association of Korean Geoscience Societies (한국지질과학협의회)
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Seasonal variations of particle fluxes in the northeastern equatorial Pacific during normal and weak El Nino periods

  • Kim, Hyung-Jeek (Department of Oceanography, Pusan National University) ;
  • Hyeong, Ki-Seong (Deep-sea & Marine Georesources Research Department, Korea Ocean Research and Development Institute (KORDI)) ;
  • Yoo, Chan-Min (Deep-sea & Marine Georesources Research Department, Korea Ocean Research and Development Institute (KORDI)) ;
  • Chi, Sang-Bum (Deep-sea & Marine Georesources Research Department, Korea Ocean Research and Development Institute (KORDI)) ;
  • Khim, Boo-Keun (Department of Oceanography, Pusan National University) ;
  • Kim, Dong-Seon (Climate Change & Coastal Disaster Research Department, Korea Ocean Research and Development Institute (KORDI))
  • Received : 2010.06.22
  • Accepted : 2010.11.20
  • Published : 2010.12.30
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Abstract

A moored time-series sediment trap was deployed at the Korea Ocean Research and Development Institute Long-term Monitoring (KOMO) Station in the northeastern equatorial Pacific from July 2003 to June 2005. A weak El Ni$\tilde{n}$o event was recorded from June 2004 to February 2005, and normal conditions were observed in the remaining periods. The normal period was divided into two seasons based on the cycles of environmental properties in the surface ocean: cold (December-May) and warm (June-November) season. During the normal period, the total mass flux was 1.7 times higher in the cold season than in the warm season. Particularly, the $CaCO_3$ flux was nearly three times higher in the cold season. The enhanced $CaCO_3$ flux in the cold season was attributed to an increased foraminiferal flux, which may have influenced the seasonal variability of the total mass flux at the KOMO station. The enhanced foraminiferal flux during the cold season may have been caused by the environmental changes of the surface ocean in response to wind-driven mixing resulting in supply of subsurface nutrient-enriched water. Particle fluxes during the weak El Nino period were lower by 30% than those during the normal period, which was consistent with previous findings in the central and eastern equatorial Pacific.

Keywords

References

  1. Amador, J.A., Alfaro, E.J., Lizano, O.G., and Magga, V.O., 2006, Atmospheric forcing of the eastern tropical Pacific: A review. Progress in Oceanography, 69, 101-142. https://doi.org/10.1016/j.pocean.2006.03.007
  2. Barber, R.T. and Chavez, F.P., 1983, Biological consequences of El Nino. Science, 222, 1203-1210. https://doi.org/10.1126/science.222.4629.1203
  3. Be, A.W.H. and Hutson, W.H., 1977, Ecology of planktonic foraminifera and biogeographic patterns of life and fossil assemblages in the Indian Ocean. Micropaleontology, 23, 369-414. https://doi.org/10.2307/1485406
  4. Blackburn, M., Laws, R.M., Owen, R.W., and Zeitschel, B., 1970, Seasonal and areal changes in standing stocks of phytoplankton, zooplankton and micronekton in the eastern tropical Pacific. Marine Biology, 7, 14-31. https://doi.org/10.1007/BF00346804
  5. Chavez, F.P., Barber, R.T., Kogelschatz, J.E., Thayer, V.G., and Cai, V., 1984, El Nino and primary productivity: Potential effects on atmospheric $CO_2$ and fish production. Tropical Ocean and Atmosphere Newsletter, 28, 1-2.
  6. Chavez, F.P., Strutton, P.G., Friederich, G.E., Feely, R.A., Feldman, G.C., Foley, D.G., and McPhaden, M.J., 1999, Biological and chemical response of the equatorial Pacific Ocean to the 1997-98 El Nino. Science, 286, 2126-2131. https://doi.org/10.1126/science.286.5447.2126
  7. Conte, M.H., Ralph, N., and Ross, E.H., 2001, Seasonal and interannual variability in deep ocean particle fluxes at the Ocean Flux Program (OFP)/Bermuda Atlantic Time Series (BATS) site in the western Sargasso Sea near Bermuda. Deep-Sea Research II, 48, 1471-1505. https://doi.org/10.1016/S0967-0645(00)00150-8
  8. DeMaster, D.J., 1981, The supply and accumulation of silica in the marine environment. Geochimica et Cosmochimica Acta, 45, 1715-1732. https://doi.org/10.1016/0016-7037(81)90006-5
  9. Dessier, A. and Donguy, J.R., 1985, Planktonic copepods and environmental properties of the eastern equatorial Pacific: seasonal and spatial variations. Deep-Sea Research Part A, 32, 1117-1133. https://doi.org/10.1016/0198-0149(85)90066-4
  10. Dore, J.E., Letelier, R.M., Church, M.J., Lucas, R., and Karl, D.M., 2008, Summer phytoplankton blooms in the oligotrophic North Pacific Subtropical Gyre: History perspective and recent observations. Progress in Oceanography, 76, 2-38. https://doi.org/10.1016/j.pocean.2007.10.002
  11. Dymond, J. and Collier, R., 1988, Biogenic particle fluxes in the equatorial Pacific: evidence for both high and low productivity during the 1982-1983 El Nino. Global Biogeochemical Cycles, 2, 129-137. https://doi.org/10.1029/GB002i002p00129
  12. El-Sayed, S.Z. and Taguchi, S., 1979, Phytoplankton standing crop and primary productivity in the tropical Pacific. In: Bischoff, J.L. and Piper, D.Z. (eds.), Marine Geology and Oceanography of the Pacific Manganese Nodule Province. Pergamon, New York, p. 241-286.
  13. Feely, R.A., Wanninkhof, R., Goyet, C., Archer, D.E., and Takahashi, T., 1997, Variability of $CO_2$ distributions and sea-air fluxes in the central and eastern equatorial Pacific during the 1991-1994 El Nino. Deep-Sea Research II, 44, 1851-1997. https://doi.org/10.1016/S0967-0645(97)00061-1
  14. Fernandez-Alamo, M.A. and Farber-Lorda, J., 2006, Zooplankton and the oceanography of the eastern tropical Pacific: A review. Progress in Oceanography, 69, 318-359. https://doi.org/10.1016/j.pocean.2006.03.003
  15. Fiedler, P.C. and Talley, L.D., 2006, Hydrography of the eastern tropical Pacific: A review. Progress in Oceanography, 69, 143-180. https://doi.org/10.1016/j.pocean.2006.03.008
  16. Gupta, L.P. and Kawahata, H., 2002. Impact of ENSO variability on the flux and composition of sinking POM in the western equatorial Pacific Ocean: Amino acids and hexosamines. Deep-Sea Research I, 49, 2769-2782. https://doi.org/10.1016/S0967-0645(02)00057-7
  17. Hwang, J., Druffel, E.R.M., Griffin, S., Smith Jr, K.L., Baldwin, R., and Bauer, J.E., 2004. Temporal variability of ${\Delta}^{14}C$, ${\delta}^{13}C$, and C/N in sinking particulate organic matter at a deep time series station in the northeast Pacific Ocean. Global Biogeochemical Cycles, 18, GB4015, doi:10.1029/2004GB002221.
  18. Hebel, D.V. and Karl, D.M., 2001, Seasonal, interannual and decadal variations in particulate matter concentrations and composition in the subtropical North Pacific Ocean. Deep-Sea Research I, 48, 1669-1695. https://doi.org/10.1016/S0967-0645(00)00155-7
  19. Honjo, S., Manganini, S., and Cole, J.J., 1982, Sedimentation of biogenic matter in the deep ocean. Deep-Sea Research, 29, 609-625. https://doi.org/10.1016/0198-0149(82)90079-6
  20. Honjo, S., Dymond, J., Collier, R., and Manganini, S.J., 1995, Export production of particles to the interior of the equatorial Pacific Ocean during the 1992 EqPac experiment. Deep-Sea Research II, 42, 831-870. https://doi.org/10.1016/0967-0645(95)00034-N
  21. Karl, D.M., Christian, J.R., Dore, J.E., Hebel, D.V., Letelier, R.M., Tupas, L.M., and Winn, C.D., 1996, Seasonal and interannual variability in primary production and particle flux at Station ALOHA. Deep-Sea Research II, 43, 539-568. https://doi.org/10.1016/0967-0645(96)00002-1
  22. Karl, D.M. and Lukas, R., 1996, The Hawaii Ocean Time-series (HOT) program: Background, rationale and field implementation. Deep-Sea Research II, 43, 129-156. https://doi.org/10.1016/0967-0645(96)00005-7
  23. Kawahata, H., Yamamuro, M., and Ohta, H., 1998, Seasonal and vertical variations of sinking particle fluxes in the western Caroline Basin. Oceanologica Acta, 21, 521-532. https://doi.org/10.1016/S0399-1784(98)80035-2
  24. Kawahata, H., Suzuki, A., and Ohta, H., 2000, Export fluxes in the Western Pacific Warm Pool. Deep-Sea Research I, 47, 2061- 2091. https://doi.org/10.1016/S0967-0637(00)00025-X
  25. Kincaid, E., Thunell, R.C., Le, J., Lange, C.B., Weinheimer, A.L., and Reid, F.M.H., 2000, Planktonic foraminiferal fluxes in the Santa Barbara Basin: response to seasonal and interannual hydrographic changes. Deep-Sea Research II, 47, 1157-1176. https://doi.org/10.1016/S0967-0645(99)00140-X
  26. Li, T., Masuzawa, T., and Kitagawa, H., 2004, Seasonal variations in settling fluxes of major components in the oligotrophic Shikoku Nasin, the western North Pacific: coincidence of high biogenic flux with Asian dust supply in spring. Marine Chemistry, 91, 187-210. https://doi.org/10.1016/j.marchem.2004.06.010
  27. McGee, D., Marcantonio, F., and Lynch-Stieglitz, J., 2007, Deglacial changes in dust flux in the eastern equatorial Pacific. Earth and Planetary Science Letters, 257, 215-230. https://doi.org/10.1016/j.epsl.2007.02.033
  28. Murray, J.W., Young, J., Newton, J., Dunne, J., Chapin, T., Paul, B., and McCarthy, J.J., 1996, Export flux of particulate organic carbon from the central equatorial Pacific determined using a combined drifting trap-234Th approach. Deep-Sea Reserach II, 43, 1095-1132. https://doi.org/10.1016/0967-0645(96)00036-7
  29. Pennington, J.T., Mahoney, K.L., Kuwahara, V.S., Kolber, D.D., Calienes, R., and Chavez, F.P., 2006, Primary production in the eastern tropical Pacific: A review. Progress in Oceanography, 69, 285-317. https://doi.org/10.1016/j.pocean.2006.03.012
  30. Rodier, M. and Borgne, R.L., 1997, Export flux of particles at the equator in the western and central Pacific ocean. Deep-Sea Research II, 44, 2085-2113. https://doi.org/10.1016/S0967-0645(97)00092-1
  31. Roman, M.R., Dam, H.G., Gauzens, A.L., Urban-Rich, J., Foley, D.G., and Dickey, T.D., 1995, Zooplankton variability on the equator at $140^{\circ}W$ during the JGOFS EqPac study. Deep-Sea Research II, 42, 673-693. https://doi.org/10.1016/0967-0645(95)00025-L
  32. Romero-Centeno, R., Zavala-Hidalgo, J., and Raga, G.B., 2007, Midsummer Gap Winds and Low-Level Circulation over the Eastern Tropical Pacific. Journal of Climate, 20, DOI: 10.1175/JCLI4220.1.
  33. Sautter, L.R. and Sancetta, C., 1992, Seasonal associations of phytoplankton and planktonic foraminifera in an upwelling region and their contribution to the seafloor. Marine Micropaleontology, 18, 263-278. https://doi.org/10.1016/0377-8398(92)90043-J
  34. Schiebel, R., Hiller, B., and Hemleben, C., 1995, Impacts of storms on recent planktonic foraminiferal test production and $CaCO_3$ flux in the North Atlantic at $47^{\circ}N$, $20^{\circ}W$ (JGOFS). Marine Micropaleontology, 26, 115-129. https://doi.org/10.1016/0377-8398(95)00035-6
  35. Schiebel, R., Waniek, J., Bork, M., and Hemleben, C., 2001, Planktonic foraminiferal production stimulated by chlorophyll redistribution and entrainment of nutrients. Deep-Sea Research I, 48, 721-740. https://doi.org/10.1016/S0967-0637(00)00065-0
  36. Takahashi, K. and Bé, A.W.H., 1984, Planktonic foraminifera: factors controlling sinking speeds. Deep-Sea Reserach, 31, 1477-1500. https://doi.org/10.1016/0198-0149(84)90083-9
  37. Takahashi, T., Sutherland, S.C., Sweeney, C., Poisson, A., Metzl, N., Tilbrook, B., Bates, N., Wanninkhof, R., Feely, R.A., Sabine, C., Olafsson, J., and Nojiri, Y., 2002, Global sea-air $CO_2$ flux based on climatological surface ocean $pCO_2$, and seasonal biological and temperature effects. Deep-Sea Research II, 49, 1601-1622. https://doi.org/10.1016/S0967-0645(02)00003-6
  38. Takahashi, N. and Noriki, S., 2007, Rare earth elements and Opal/ $CaCO_3$ ration of sinking particles observed with a time-series sediment trap at the mouth of Tokyo Bay. Journal of Oceanography, 63, 941-951. https://doi.org/10.1007/s10872-007-0079-5
  39. Thunell, R.C., Curry, W.B., and Honjo, S., 1983, Seasonal variation in the flux of planktonic foraminifera: time series sediment trap results from the Panama Basin. Earth and Planetary Science Letters, 63, 44-55.
  40. Unger, D., Ittekkot, V., Schafer, P., Tiemann, J., and Reschke, S., 2003, Seasonality and interannual variability of particle fluxes to the deep Bay of Bengal: influence of riverine input and oceanographic processes. Deep-Sea Research II, 50, 897-923. https://doi.org/10.1016/S0967-0645(02)00612-4
  41. Wanninkhof, R., Feely, R.A., Atwood, D.K., Berberian, G., Wilson, D., Murphy, P.P., and Lamb, M.F., 1995, seasonal and lateral variations in carbon chemistry of surface water in the eastern equatorial Pacific during 1992. Deep-Sea Research II, 42, 387-409. https://doi.org/10.1016/0967-0645(95)00016-J
  42. White, J.R., Zhang, X., Welling, L.A., Roman, M.R., and Dam, H.G., 1995, Latitudinal gradients in zooplankton biomass in the tropical Pacific at $140^{\circ}W$ during the JGOFS EqPac study: Effects of El Nino. Deep-Sea Research II, 42, 715-733. https://doi.org/10.1016/0967-0645(95)00033-M

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