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Estuaries and Coasts

, Volume 39, Issue 1, pp 13–26 | Cite as

Seasonal Changes in Submarine Groundwater Discharge and Associated Nutrient Transport into a Tideless Semi-enclosed Embayment (Obama Bay, Japan)

  • Ryo SugimotoEmail author
  • Hisami Honda
  • Shiho Kobayashi
  • Yoshitake Takao
  • Daisuke Tahara
  • Osamu Tominaga
  • Makoto Taniguchi
Article

Abstract

We carried out a seasonal study of fresh submarine groundwater discharge (SGD) and associated nutrient fluxes in a semi-enclosed bay along a tideless coastal zone using a 222Rn and salinity mass balance model for a whole bay scale. The resulting SGD rates showed large intra-annual variability from 0.05 × 106 to 0.77 × 106 m3 day−1, which were controlled by seasonal changes in the interaction of multiple driving forces, including water table height and seawater level. The highest SGD rate in early spring was induced by heavy snow and low sea level, whereas the seasonal increase in sea level gradually suppressed fresh SGD rates. In summer, an elevated water table may induce higher SGD rates (approximately 0.4 × 106 m3 day−1) regardless of high sea levels. The highest SGD fraction in total terrestrial freshwater fluxes also occurred in summer (>40 %), due to the decreasing rate of surface river discharge. The seasonally averaged SGD rate was 0.36 × 106 m3 day−1. This value was similar to the annual groundwater recharge rate (0.33 × 106 m3 day−1) estimated by the water balance method in the basin. Nutrient fluxes from SGD were approximately 42, 65, and 33 % of all terrestrial fluxes of dissolved inorganic nitrogen, phosphorous, and silicate, respectively. The average fraction of SGD in the water fluxes including terrestrial and oceanic water was low (0.3 %), but that of nutrient fluxes increased to 20–38 %. Higher nutrient concentrations in groundwater compensated for the lower volumetric flux of groundwater. Because primary production was mostly restricted by phosphorous throughout the year, phosphorous-enriched nutrient transport via SGD would play an important role in biological production.

Keywords

Submarine groundwater discharge Radon Nutrients Semi-enclosed embayment 

Notes

Acknowledgments

We thank the captain and crew of the R/V Aoba of Obama Fisheries High School for their help with the observations. We are grateful to two anonymous reviewers for their helpful comments and suggestions. This work was financially supported by JSPS KAKENHI Grant Number 24658175 and was performed under the support of the Research Project “Human-Environmental Security in Asia-Pacific Ring of Fire: Water-Energy-Food Nexus (R-08-Init)” at the Research Institute for Humanity and Nature (RHIN).

References

  1. Borges, A.V., B. Delille, L.-S. Schiettecatte, F. Gazeau, G. Abril, and M. Frankignoulle. 2004. Gas transfer velocities of CO2 in three European estuaries (Randers Fjord, and Thames). Limnology and Oceanography 49: 1630–1641.CrossRefGoogle Scholar
  2. Brezinski, M.A. 1985. The Si:C:N ratio of marine diatoms: interspecific variability and the effect of some environmental variables. Journal of Phycology 21: 347–357.CrossRefGoogle Scholar
  3. Burnett, W.C., and H. Dulaiova. 2003. Estimating the dynamics of groundwater input into the coastal zone via continuous radon-222 measurements. Journal of Environmental Radioactivity 69: 21–35.CrossRefGoogle Scholar
  4. Burnett, W.C., P.K. Aggarwal, A. Aureli, H. Bokuniewicz, J.E. Cable, M.A. Charette, E. Kontar, S. Krupa, K.M. Kulkarni, A. Loveless, W.S. Moore, J.A. Oberdorfer, J. Oliveira, N. Ozyurt, P. Povinec, A.M.G. Privitera, R. Rajar, R.T. Ramessur, J. Scholten, T. Stieglitz, M. Taniguchi, and J.V. Turner. 2006. Quantifying submarine groundwater discharge in the coastal zone via multiple methods. Science of the Total Environment 367: 498–543.CrossRefGoogle Scholar
  5. Burnett, W.C., I.R. Santos, Y. Weinstein, P.W. Swarzenski, and B. Herut. 2007. Remaining uncertainties in the use of Rn-222 as a quantitative tracer of submarine groundwater discharge. In A new focus on groundwater-seawater interactions, ed. W. Sanford, C. Langevin, M. Polemio, and P. Province, 109–118. Perugia: IAHS Publ., 312.Google Scholar
  6. Burnett, W.C., R. Peterson, W.S. Moore, and J. de Oliveira. 2008. Radon and radium isotopes as racers of submarine groundwater discharge—results from the Ubatuba, Brazil SGD assessment intercomparison. Estuarine, Coastal and Shelf Science 76: 501–511.CrossRefGoogle Scholar
  7. Cable, J.E., W.C. Burnett, J.P. Chanton, and G.L. Weatherly. 1996. Estimating groundwater discharge into the northeastern Gulf of Mexico using radon-222. Earth and Planetary Science Letters 144: 591–604.CrossRefGoogle Scholar
  8. Charette, M.A. 2007. Hydrologic forcing of submarine groundwater discharge: insight from a seasonal study of radium isotopes in a groundwater-dominated salt marsh estuary. Limnology and Oceanography 52: 230–239.CrossRefGoogle Scholar
  9. Del Amo, Y., O. Le Pape, P. Tréguer, B. Quéguiner, A. Ménesguen, and A. Aminot. 1997. Impacts of high-nitrate freshwater inputs on macrotidal ecosystems. I. Seasonal evolution of nutrient limitation for the diatom-dominated phytoplankton of the Bay of Brest (France). Marine Ecology Progress Series 161: 213–224.CrossRefGoogle Scholar
  10. Dulaiova, H., R. Peterson, W.C. Burnett, and D. Lane-Smith. 2005. A multi-detector continuous monitor for assessment of 222Rn in the coastal ocean. Journal of Radioanalytical and Nuclear Chemistry 263: 361–363.CrossRefGoogle Scholar
  11. Dulaiova, H., M.E. Gonneea, P.B. Henderson, and M.A. Charette. 2008. Geochemical and physical sources of radon variation in a subterranean estuary—implications for groundwater radon activities in submarine groundwater discharge studies. Marine Chemistry 110: 120–127.CrossRefGoogle Scholar
  12. Grossland, C. J., H. H. Kremer, H. J. Lindeboom, J. I. M. Grossland and M. D. A. Le Tissier. 2005. Coastal fluxes in the anthropocence. The IGBP Series, Springer. 231 pp.Google Scholar
  13. Gwak, Y.-S., S.-J. Kim, Y.-W. Lee, B.-K. Khim, S.-Y. Hamm, and S.-W. Kim. 2014. Estimation of submarine groundwater discharge in the Il-Gwang watershed using water budget analysis and 222Rn mass balance. Hydrological Processes 28: 3761–3775.CrossRefGoogle Scholar
  14. Hatta, M., and J. Zhang. 2013. Temporal changes and impacts of submarine fresh groundwater discharge to the coastal environment: a decadal case study in Toyama Bay, Japan. Journal of Geophysical Research, Oceans 118: 2610–2622.CrossRefGoogle Scholar
  15. Holmes, R.M., A. Aminot, R. Kerouel, B.A. Hooker, and B.J. Peterson. 1999. A simple and precise method for measuring ammonium in marine and freshwater ecosystems. Canadian Journal of Fisheries and Aquatic Sciences 56: 1801–1808.CrossRefGoogle Scholar
  16. Hosono, T., M. Ono, W.C. Burnett, T. Tokunaga, M. Taniguchi, and T. Akimichi. 2012. Spatial distribution of submarine groundwater discharge and associated nutrients within a local coastal area. Environmental Science & Technology 46: 5319–5326.CrossRefGoogle Scholar
  17. Hu, C., F.E. Muller-Karger, and P.W. Swarzenski. 2006. Hurricanes, submarine groundwater discharge, and Florida’s red tides. Geophysical Research Letters 33, L11601. doi: 10.1029/2005GL025449.CrossRefGoogle Scholar
  18. Hwang, D.-W., Y.-W. Lee, and G. Kim. 2005. Large submarine groundwater discharge and benthic eutrophication in Bangdu Bay on volcanic Jeju Island, Korea. Limnology and Oceanography 50: 1393–1403.CrossRefGoogle Scholar
  19. Ito, N., and A. Marui. 2010. Distribution of quantities of submarine groundwater discharge on the Japanese Island. Journal of Japanese Association of Hydrological Sciences 40: 1–18 (in Japanese with English abstract).CrossRefGoogle Scholar
  20. Kasai, A., Y. Kurikawa, M. Ueno, D. Robert, and Y. Yamashita. 2010. Salt-wedge intrusion of seawater and its implication for phytoplankton dynamics in the Yura Estuary, Japan. Estuarine, Coastal and Shelf Science 86: 408–414.CrossRefGoogle Scholar
  21. Kayane, I. 1980. Hydrology. Natural Geography Lecture Series 3: 98–102. Daimeidou Publishing Co. Japan (in Japanese).Google Scholar
  22. Kelly, R.P., and S.B. Moran. 2002. Seasonal changes in groundwater input to a well-mixed estuary estimated using radium isotopes and implications for coastal nutrient budgets. Limnology and Oceanography 47: 1796–1807.CrossRefGoogle Scholar
  23. Kim, G., and D.-W. Hwang. 2002. Tidal pumping of groundwater into the coatal ocean revealed from submarine 222Rn and CH4 monitoring. Geophysical Research Letters 29. doi: 10.1029/2002GL015093.
  24. Kim, G., K.-K. Lee, K.-P. Park, D.-W. Hwang, and H.-S. Yang. 2003. Large submarine groundwater discharge (SGD) from a volcanic island. Geophysical Research Letters 30. doi: 10.1029/2003GL018378.
  25. Kim, G., J.-W. Ryu, H.-S. Yang, and S.-T. Yun. 2005. Submarine groundwater discharge (SGD) into the Yellow Sea revealed by 228Ra and 226Ra isotopes: implications for global silicate fluxes. Earth and Planetary Science Letters 237: 156–166.CrossRefGoogle Scholar
  26. Kobayashi, S., and T. Fujiwara. 2008. Long-term variability of shelf water intrusion and its influence on hydrographic and biogeochemical properties of the Seto Inland Sea, Japan. Journal of Oceanography 64: 595–603.CrossRefGoogle Scholar
  27. Lee, Y.W., D.W. Hwang, G. Kim, W.C. Lee, and H.T. Oh. 2009. Nutrient inputs from submarine groundwater discharge (SGD) in Masan Bay, an embayment surrounded by heavily industrialized cities, Korea. Science of the Total Environment 407: 3181–3188.CrossRefGoogle Scholar
  28. Macintyre, S., R. Wannikhof, and J.P. Chanton. 1995. Trace gas exchange across the air-sea interface in freshwater and coastal marine environments. In: Biogenic trace gases: measuring emissions from soil and water, eds. Matson, P.A., Harris, R.C, 52–97. Blackwell Science Ltd.Google Scholar
  29. Matsui, A. 2011. Seasonal change in spring discharge of Unjou water and Tsushima’s famous water, Obama City, Fukui Prefecture, Japan. Ecology and Civil Engineering 13: 165–169 (in Japanese with English abstract).Google Scholar
  30. Michael, H.A., J.S. Lubetsky, and C.F. Harvey. 2003. Characterizing submarine groundwater discharge: a seepage meter study in Waquoit Bay, Massachusetts. Geophysical Research Letters 30. doi: 10.1029/2002GL016000.
  31. Michael, H.A., A.E. Mulligan, and C.F. Harvey. 2005. Seasonal oscillations in water exchange between aquifers and the coastal ocean. Nature 436: 1145–1148.CrossRefGoogle Scholar
  32. Moore, W.S. 1996. Large groundwater inputs to coastal waters by 226Ra enrichments. Nature 380: 612–614.CrossRefGoogle Scholar
  33. Moore, W.S. 2010. The effect of submarine groundwater discharge on the ocean. Annual Review of Marine Science 2: 59–88.CrossRefGoogle Scholar
  34. Mulligan, A.E., and M.A. Charette. 2006. Intercomparison of submarine groundwater discharge estimates from a sandy unconfined aquifer. Journal of Hydrology 327: 411–425.CrossRefGoogle Scholar
  35. Nishida, H. 1980. Improved tidal charts for the western part of the North Pacific Ocean. Report of Hydrographic Researches 15: 55–70.Google Scholar
  36. Obama City Office. 2014. Investigation interim report for groundwater resources in Obama Plain. http://www1.city.obama.fukui.jp/category/page.asp?Page=2592. Accessed 1 Jul 2014.
  37. Pearl, H.W. 1997. Coastal eutrophication and harmful algal blooms: importance of atmospheric deposition and groundwater as “new” nitrogen and other nutrient sources. Limnology and Oceanography 42: 1154–1165.CrossRefGoogle Scholar
  38. Redfield, A.C., B.H. Ketchum, and F.A. Richard. 1963. Chapter 2, the influence of organisms on the composition on sea-water. In The sea, vol. 2, ed. M.N. Hill, 26–77. New York: Wiley Interscience.Google Scholar
  39. Robinson, M., D. Gallagher, and W. Reay. 1998. Field observations of tidal and seasonal variations in ground water discharge to tidal estuarine surface water. Groundwater Monitoring & Remediation 18: 89–92.Google Scholar
  40. Rutkowski, C.M., W.C. Burnett, R.L. Iverson, and J.P. Chanton. 1999. The effect of groundwater seepage on nutrient delivery and seagrass distribution in the Northeastern Gulf of Mexico. Estuaries 22: 1033–1040.CrossRefGoogle Scholar
  41. Santos, I.R., N. Dimova, R.N. Peterson, B. Mwashote, J. Chanton, and W.C. Burnett. 2009. Extended time series measurements of submarine groundwater discharge tracers (222Rn and CH4) at a coastal site in Florida. Marine Chemistry 113: 137–147.CrossRefGoogle Scholar
  42. Santos, I.R., R. Peterson, B.D. Eyre, and W.C. Burnett. 2010. Significance lateral inputs of fresh groundwater into a stratified tropical estuary: evidence from radon and radium isotopes. Marine Chemistry 121: 37–48.CrossRefGoogle Scholar
  43. Sasajima, S., and K. Sakamoto. 1962. Subsurface geology and groundwater of Obama Plain, Fukui Pref., central Japan. Part 2: groundwater of Obama Plain. Memoirs of the Faculty of Liberal Arts, University of Fukui. Ser. II, Natural Science. (in Japanese with English abstract).Google Scholar
  44. Sato, T., R. Sugimoto, and O. Tominaga. 2013. Source of sedimentary organic matter in Obama Bay estimated from stable isotope and C/N ratios. Bulletin of the Japanese Society of Fisheries Oceanography 77: 1–9 (in Japanese with English abstract).Google Scholar
  45. Slomp, C.P., and P. van Cappellen. 2004. Nutrient inputs to the coastal ocean through submarine groundwater discharge: controls and potential impact. Journal of Hydrology 295: 64–86.CrossRefGoogle Scholar
  46. Statham, P.J. 2012. Nutrients in estuaries—an overview and the potential impacts of climate change. Science of the Total Environment 434: 213–227.CrossRefGoogle Scholar
  47. Strickland, J.D.H., and T.R. Parsons. 1972. A practical handbook of seawater analysis. Second edition, Bulletin 167. Ottawa: Fisheries Research Board of Canada.Google Scholar
  48. Sugimoto, R., A. Kasai, T. Miyajima, and K. Fujita. 2009. Transport of oceanic nitrate from the continental shelf to the coastal basin in relation to the path of the Kuroshio. Continental Shelf Research 29: 1678–1688.CrossRefGoogle Scholar
  49. Sugimoto, R., A. Kasai, T. Miyajima, and K. Fujita. 2010. Modeling of phytoplankton production in Ise Bay, Japan: use of nitrogen isotopes to identify the dissolved inorganic nitrogen sources. Estuarine, Coastal and Shelf Science 86: 476–492.CrossRefGoogle Scholar
  50. Taniguchi, M. 2002. Tidal effects on submarine groundwater discharge into the ocean. Geophysical Research Letters 29. doi: 10.1029/2002GL014987.
  51. Taniguchi, M., and H. Iwakuma. 2004. Submarine groundwater discharge in Osaka Bay, Japan. Limnology 5: 25–32.CrossRefGoogle Scholar
  52. Taniguchi, M., W.C. Burnett, J.E. Cable, and J.V. Turner. 2002. Investigation of submarine groundwater discharge. Hydrological Processes 16: 2115–2129.CrossRefGoogle Scholar
  53. Taniguchi, M., W.C. Burnett, H. Dulaiova, F. Siringan, J. Foronda, G. Wattayakorn, S. Rungsupa, E.A. Kontar, and T. Ishitobi. 2008a. Groundwater discharge as an important land-sea pathway into Manila Bay, Philippines. Journal of Coastal Research 24: 15–24.CrossRefGoogle Scholar
  54. Taniguchi, M., T. Ishitobi, J. Chen, S. Onodera, K. Miyaoka, W.C. Burnett, R. Peterson, G. Liu, and Y. Fukushima. 2008b. Submarine groundwater discharge from the Yellow River Delta to the Bohai Sea, China. Journal of Geophysical Research 113. doi: 10.1029/2007JC004498.
  55. Thornthwaite, C.W. 1948. An approach toward a rational classification of climate. Geographical Review 38: 55–94.CrossRefGoogle Scholar
  56. Turner, S.M., G. Malin, P.D. Nightingale, and P.S. Liss. 1996. Seasonal variation of dimethyl sulphide in the North Sea and an assessment of fluxes to the atmosphere. Marine Chemistry 54: 552–556.Google Scholar
  57. Valiela, I., J. Costa, K. Foreman, J. Teal, B. Howes, and D. Aubrey. 1990. Transport of groundwater-bone nutrients from watersheds and their effects on coastal waters. Biogeochemistry 10: 177–197.CrossRefGoogle Scholar
  58. Valiela, I., K. Foreman, M. LaMontagne, D. Hersh, J. Costa, P. Peckol, B. DeMeo-Andreson, C. D’Avanzo, M. Babione, C. Sham, J. Brawley, and K. Lajtha. 1992. Couplings of watersheds and coastal waters: sources and consequences of nutrient enrichment in Waquiot Bay, Massachusetts. Estuaries 15: 443–457.CrossRefGoogle Scholar
  59. Wannikhof, R. 1992. Relationship between wind speed and gas exchange over the ocean. Journal of Geophysical Research, Oceans 97: 7373–7382.CrossRefGoogle Scholar
  60. Wong, W.W., M.R. Grace, I. Cartwright, M.B. Cardenas, P.B. Zamora, and P.L.M. Cook. 2013. Dynamics of groundwater-derived nitrate and nitrous oxide in a tidal estuary from radon amass balance modeling. Limnology and Oceanography 58: 1689–1706.CrossRefGoogle Scholar
  61. Yoder, A.J., L.P. Atkinson, T.N. Lee, H.H. Kim, and C.R. McClain. 1981. Role of Gulf Stream frontal eddies in forming phytoplankton patches on the outer southeastern shelf. Limnology and Oceanography 26: 1103–1110.CrossRefGoogle Scholar

Copyright information

© Coastal and Estuarine Research Federation 2015

Authors and Affiliations

  • Ryo Sugimoto
    • 1
    Email author
  • Hisami Honda
    • 1
    • 2
  • Shiho Kobayashi
    • 3
  • Yoshitake Takao
    • 4
  • Daisuke Tahara
    • 1
  • Osamu Tominaga
    • 1
  • Makoto Taniguchi
    • 2
  1. 1.Research Center for Marine BioresourcesFukui Prefectural UniversityObamaJapan
  2. 2.Research Institute for Humanity and NatureKyotoJapan
  3. 3.Field Science Education and Research CenterKyoto UniversityKyotoJapan
  4. 4.Faculty of Marine BiosciencesFukui Prefectural UniversityObamaJapan

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