Advertisement

Estuaries

, 22:358 | Cite as

Reconstructing the History of eastern and Central Florida Bay using mollusk-shell isotope records

  • Robert B. HalleyEmail author
  • Leanne M. Roulier
Article

Abstract

Stable isotopic ratios of carbon and oxygen (δ13C and δ18O) from mollusk shells reflect the water quality characteristics of Florida Bay and can be used to characterize the great temporal variability of the bay. Values of δ18O are directly influenced by temperature and evaporation and may be related to salinity, δ13C values of δ13C are sensitive to organic and inorganic sources of carbon and are influenced by productivity. Analyses of eight mollusk species from five short-core localities across Florida Bay show large ranges in the values of δ13C and δ18O, and reflect the variation of the bay over decades. Samples from southwester Florida Bay have distinct δ13C values relative to samples collected in northeastern Florida Bay, and intermediate localities have intermediate values.13C values of δ13C grade from marine in the southwest bay to more estuarine in the northeast. Long cores (>1m), with excellent chronologies were analyzed from central and eastern Florida Bay. Preliminary analyses ofBrachiodontes exustus andTransenella spp. from the cores showed that both δ13C and δ18O changed during the first part of the twentieth century. After a century of relative stability during the 1800s, δ13C decreased between about 1910 and 1940, then stabilized at these new values for the next five decades. The magnitude of the reduction in δ13C values increased toward the northeast. Using a carbon budget model, reduced δ13C values are interpreted as resulting from decreased circulation in the bay, probably associated with decreased freshwater flow into the Bay. Mollusk shell δ18O values display several negative excursions during the 1800s, suggesting that the bay was less evaporitic than during the twentieth century. The isotope records indicate a fundamental change took place in Florida Bay circulation early in the twentieth century. The timing of the change links it to railroad building and early drainage efforts in South Florida rather than to flood control and water management measures initiated after World War II.

Keywords

Mollusk Particulate Organic Carbon Carbon Budget United States Geological Survey Mollusk Shell 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Literature Cited

  1. Addadi, L. andS. Weiner. 1997. A pavement of pearl.Nature 389:912–913.CrossRefGoogle Scholar
  2. Andrews, J. 1971. Shells and Shores of Texas. University of Texas Press, Austin, Texas.Google Scholar
  3. Barrera, E. andM. J. Tevesz. 1990. Oxygen and carbon isotopes: Utility for environmental interpretation of recent and fossil invertebrate skeletons, p. 557–566.In J. G. Cater (ed.), Skeletal Biomineralization: Patterns and Evolutionary Trends, Volume 1. Van Nostrand Reinhold, New York.Google Scholar
  4. Bosence, D. W. J. 1989. Biogenic carbonate production in Florida Bay.Bulletin of Marine Science 44:419–433.Google Scholar
  5. Bosence, D. W. J. and P. A. Allison. 1995. Marine palaeoenvironmental analysis from fossils. Geological Society Special Publication No. 83. Oxford, England.Google Scholar
  6. Davis, J. H. 1940. The ecology and geologic role of mangroves in Florida.Papers from the Tortugas Laboratory. XXXII:307–412.Google Scholar
  7. Deines, P., D. Langmuir, andR. S. Harmon. 1974. Stable carbon isotope ratios and the existence of a gas phase in the evolution of carbonate ground water.Geochemica et Cosmochemica Acta 38:1147–1164.CrossRefGoogle Scholar
  8. Dodd, J. R. andR. J. Stanton, Jr. 1975. Palaeosalinities within a Pliocene Bay, Kettleman Hills, California: A study of the resolving power of isotopic and faunal techniques.Geological society of American Bulletin 86:51–64.CrossRefGoogle Scholar
  9. Durako, M. J. 1991. Carbon dynamics of the seagrassThalassia testudinum, Ph.D. Dissertation, University of South Florida, Tampa, Florida.Google Scholar
  10. Epstein, S. andH. A. Lowenstam. 1953. Temperature-shell-growth relations of recent and interglacial Pleistocene shoal water biota from Bermuda.Journal of Geology 61:4245–438.Google Scholar
  11. Fonseca, M. S. andJ. S. Fisher. 1986. A comparison of canopy friction and sediment movement between four species of seagrass with reference to their ecology and restoration.Marine Ecology Progress Series 29:15–22.CrossRefGoogle Scholar
  12. Fourqurean, J. W. andM. B. Robblee. 1999. Florida Bay: A history of recent ecological changes.Estuaries 22:345–357.CrossRefGoogle Scholar
  13. Fry, B., S. A. Macko, andJ. C. Zieman. 1988. Review of stable isotopic investigations of food webs in seagrass meadows.Florida Marine Research Publications 42:190–209.Google Scholar
  14. Garrels, R. M. andC. L. Christ. 1965. Solutions, Minerals, and Equilibria. Harper and Row, New York.Google Scholar
  15. Ginsburg, R. N. 1956. Environmental relationships of grain size and constituent particles in some south Florida carbonate sediments.Bulletin of the American Association of Petroleum Geologists 40:2384–2427.Google Scholar
  16. Gonfiantini, R. 1986. Environmental isotopes in lake studies, 2:113–168.In P. Fritz and J. C. Fontes (eds.), Handbook of Environmental Isotope Geochemistry. Elsevier, Amsterdam.Google Scholar
  17. Halley, R. B., P. W. Swart, R. E. Dodge, andJ. H. Hudson. 1994. Decade scale trend in seawater salinity revealed through delta18O ofMontastrea annularis annual growth bands.Bulletin of Marine Science 54:670–678.Google Scholar
  18. Hanson, K. andG. A. Maul. 1993. Analyses of temperature, precipitation and sea-level variability with concentration on Key West, Florida, for evidence of trace-gas-induced climate change, p. 193–213.In C. A. Maul (ed.), Climate Change in the Intra-Americas Sea. Edward Arnold, London.Google Scholar
  19. Hendry, J. P. andR. M. Kalin. 1997. Are oxygen and carbon isotopes of mollusk shells reliable palaeosalinity indicators in marginal marine environments? A case study from the Middle Jurassic of England.Journal of the Geological Society of London 154:321–333.CrossRefGoogle Scholar
  20. Holmes, M. E. 1992. Fluorescence and stable isotopes in near shore waters of south Florida and their relation to fluorescent banding in the coralMonlasrea annularis. M.S. Thesis, University of South Florida, Tampa, Florida.Google Scholar
  21. Holmes, C. W., J. R. Robbins, R. B. Halley, M. E., Bothner, M. E. tenBrink, and M. E. Marot. in press. Sedimentary dynamics of Florida Bay Mud Banks on a decadal time Scale.Journal of Coastal Research.Google Scholar
  22. Hudson, J. H., D. M. Allen, and T. J. Costello. 1970. The flora and fauna of a basin in central Florida Bay. United States Fish and Wildlife Service Special Scientific Report, Fisheries No. 604. Washington, D. C.Google Scholar
  23. Hudson, J. D., R. D. Clements, J. B. Riding, M. I. Wakefield, andW. Walton. 1995. Jurassic paleosalinitiesnand brackish-water communities: A case study.Palios 10:392–407.CrossRefGoogle Scholar
  24. Jones, D. S. andW. D. Allmon. 1995. Records of upwelling, seasonality and growth in stable-isotope profiles of Pliocene mollusk shells from Florida.Lethia 28:61–74.CrossRefGoogle Scholar
  25. Keith, M. L., G. M. Anderson, andR. Eichler. 1964. Carbon and oxygen isotopic composition of mollusk shells from marine and freshwater environments.Geochimica et Cosmochimica Acta 28:1757–1786.CrossRefGoogle Scholar
  26. Keith, M. L. andR. H. Parker. 1965. Local variation of 13C and 18O content of mollusk shells and the relatively minor temperature effect in marginal marine environments. Marine Geology 3:115–129.CrossRefGoogle Scholar
  27. Krantz, D. E. 1990. Mollusk-isotope records of Plio-Pleistocene marine paleoclimate, U.S. Middle Atlantic coastal plain.Palaios 5:317–335.CrossRefGoogle Scholar
  28. Lloyd, R. M. 1964. Variations in the oxygen and carbon isotope ratios of Florida Bay mollusks and their environmental significance.Journal of Geology 72:84–111.CrossRefGoogle Scholar
  29. McCallum, J. S. andK. W. Stockman. 1964. Water Circulation in Florida Bay, p. 10–13.In R. N. Ginsburg (ed.), South Florida Carbonate Sediments, Guidebook for Field Trip No. 1, Geological Society of America Convention, Miami, Florida.Google Scholar
  30. McConnaughey, T. 1989.13C and18O isotopic disequilibrium in biological carbonates: I. Patterns.Geochimica et Cosmochimica Acta 53:151–162.CrossRefGoogle Scholar
  31. McIvor, C. C., J. A. Ley, andR. D. Bjork. 1994. Changes in freshwater inflow from the Everglades to Florida Bay including effects on biota and biotic processes: A review, p. 117–146.In S. M. Davis and J. C. Ogden (eds.), Everglades, the Ecosystem and Its Restoration. St. Lucie Press, Delray Beach, Florida.Google Scholar
  32. Milliman, J. D. 1974. Marine Carbonates. Springer Verlag, Berlin.Google Scholar
  33. Mook, W. G. 1971. Paleotemperatures and chlorinities from stable carbon and oxygen isotopes in shell carbonate.Palaeogeography, Palaeaoclimatology, and Palaeoecology 9:245–263.CrossRefGoogle Scholar
  34. Mook, W. G. andJ. C. Vogel. 1968. Isotopic equilibrium between shells and their environment.Science 159:874–875.CrossRefGoogle Scholar
  35. National Oceanic and Atmospheric Administration. 1993. Climate and Global Change Program, Coral Records of Ocean-Atmosphere Variability. National Oceanic and Atmospheric Administration Special Report No. 10, Silver Spring, Maryland.Google Scholar
  36. O'Neil, J. R., R. N. Clayton, andT. K. Mayeda. 1969. Oxygen isotope fractionation in divalent metal carbonates.Journal of Chemistry Physics 51:5547–5558.CrossRefGoogle Scholar
  37. Patterson, W. P. andL. M. Walter. 1994a. Depletion of 13C in seawater ΣCO2 on modern carbonate platforms: Significance for the carbon isotopic record of carbonates.Geology 22:885–888.CrossRefGoogle Scholar
  38. Patterson, W. P. andL. M. Walter. 1994b. Syndepositional diagenesis of modern platform carbonates: Evidence from isotopic and minor element, data.Geology 22:127–130.CrossRefGoogle Scholar
  39. Prager, E. J. in press. Controls on sediment resuspension in Florida Bay.Journal of Sedimetary, Research.Google Scholar
  40. Purton, L. andM. Brasier. 1997. Gastropod carbonate δ18O and δ13C values record strong seasonal productivity and stratification shifts during the late Eocene in England.Geology 25: 871–874.CrossRefGoogle Scholar
  41. Robbins, J. A., C. W. Holmes, R. B. Halley, M. Bothner, E. Shinn, J. Graney, G. Keeler, M. tenBrink, K. A. Orlandini, and D. Rudnick. in press. First-order time-averaged fluxes of137Cs,239+240Pu and Pb fluxes to210Pb-dated sediments of Florida Bay,Journal of Geophysical Research.Google Scholar
  42. Sackett, W. M., T. Netratanawong, andM. E. Holmes. 1997. Carbon-13 variations in the dissolved inorganic carbon of estuarine waters.Geophysical Research Letters 24:21–24.CrossRefGoogle Scholar
  43. Smith, N. P. 1994. Long-term Gulf to Atlantic transport through tidal channels in the Florida KeysBulletin of Marine Science 54:602–609.Google Scholar
  44. Smith, N. P. 1997. An introduction to the tides of Florida Bay.Florida Scientist 60:53–67.Google Scholar
  45. Swart, P. K. 1983. Carbon and oxygen isotope fractionation in scleractinian corals.Earth Science Reviews 19:51–80.CrossRefGoogle Scholar
  46. Swart, P. K., G. F. Healy, R. E. Dodge, P. Kramer, J. H. Hudson, R. B. Halley, andM. B. Robblee. 1996. The stable oxygen and carbon isotopic record from a coral growing in Florida Bay: A 160 year record of climatic and anthropogenic influence.Paleogeography, Palaeoclimatology, Palaeoecology 123:219–237.CrossRefGoogle Scholar
  47. Swart, P. K., L. Sternberg, R. Steinen, andS. A. Harrison. 1989. Control on the oxygen and hydrogen isotopic composition of waters from Florida Bay.Chemical Geology (Isotope Geoscience Section) 79:113–123.Google Scholar
  48. Turney, W. J. andB. F. Perkins. 1972. Molluscan distribution in Florida Bay,Sedimenta III. Comparative Sedimentology Laboratory, Division, of Marine Geology and Geophysics, Rosensticl School of Marine and Atmospheric Science, University of Miami, Florida.Google Scholar
  49. Wachniew, P. andR. Rozanski. 1997. Carbon budget of a midlatitude, groundwater-controlled lake: Isotopic evidence for the importance of dissolved inorganic carbon recycling.Geochmica et Cosmochemica Acta 61:2453–2465.CrossRefGoogle Scholar
  50. Wingard, G. L., S. E. Ishman, T. M., Cronin, L. E. Edwards, D. A. Willard, and R. B. Halley. 1995. Preliminary analysis of down-core biotic assemblages: Bob Allen Keys, Everglades National Park, Florida Bay,United States Geological Survey Open-File Report 95-628, Reston, Virginia.Google Scholar
  51. Zieman, J. C., R. Davis, J. W. Fourqurean, andM. B. Robblee. 1994. The role of climate in the Florida Bay seagrass dieoff.Bulletin of Marine Science 54:1088.Google Scholar

Copyright information

© Estuarine Research Federation 1999

Authors and Affiliations

  1. 1.United States Geological SurveySt. Petersburg

Personalised recommendations