Abstract
Burning has been employed as an oil spill remediation technique in coastal marshes, even though the combined and interactive effects of oil and burning on vegetation are poorly understood. Variation among clones of perennial marsh grasses in response to these perturbations is not known. We performed a greenhouse experiment designed to assess the effects of Venezuelan crude oil alone and of oil followed by burning on three clonal genets ofSpartina alterniflora. The fully-crossed 6-mo experiment involved five dosages of oil (0 l m−2, 4 l m−2, 8 l m−2, 16 l m−2, and 24 l m−2) and two burn treatments (burned or unburned) applied to ramets from three clones. All oil-only dosages reduced survival, but burning after oiling (oil + burn treatments) increased survival relative to oil-only groups in all except the highest two oil dosages. Higher oil-only treatments also reduced ramet densities and inhibited density increases over 6 mo. Burning after treatment with the 16 l m−2 oil concentration allowed increased production of new ramets, but burning exacerbated the negative impacts on ramet density at the oil concentration of 24 l m−2. At some intermediate oil dosages, burning remediated the negative effects of oil on aboveground biomass production and growth in height. There was a significant effect of oil-only treatments on numbers of flowering ramets produced, in which two clones responded with decreased flower production and one exhibited increased flowering. There was no main effect of oil + burn on flowering. There were significant among-clones differences in all response variables to one or both treatments. Our experiment demonstrates that burning of oiledS. alterniflora marshes may have little measurable effect at low levels of Venezuelan crude oil, can remediate the effects of oil at intermediate oil concentrations, but can increase the negative impacts at high concentrations of oil. These results indicate that oil spills have the potential to adversely affect genetic diversity inS. alterniflora populations by eliminating some sensitive clonal variants or changing the relative dominance of genets. These results suggest certain clones may be better suited for phytoremediation or restoration planting following oil spills.
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Literature Cited
Alexander, S. K. andJ. W. Webb. 1985. Oil in the salt marsh: What have we learned? p. 49–62.In C. F. Bryan, P. J. Zwank, and R. H. Chabreck (eds.), Proceedings, Fourth Coastal Marsh and Estuary Management Symposium. Louisiana State University, Baton Rouge, Louisiana.
Alexander, S. K. and J. W. Webb. 1987. Relationship ofSpartina alterniflora growth to sediment oil content following an oil spill, p. 445–449.In Proceedings, 1987 Oil Spill Conference, American Petroleum Institute. Washington, D.C.
Baker, J. M. 1970. The effects of a single oil spillage, p. 16–20.In E. B. Cowell (ed.), The Ecological Effects of Oil Pollution on Littoral Communities. Applied Science Publishers Ltd., Barking, Essex, England.
DeLaune, R. D., W. H. Patrick, andR. J. Buresh. 1979. Effect of crude oil pollution on a LouisianaSpartina alterniflora marsh.Environmental Pollution 20:21–31.
Ferrell, R. F., E. D. Seneca, andR. A. Linthurst. 1984. The effects of crude oil on the growth ofSpartina alterniflora Loisel andSpartina cynosuroides (L.) Roth.Journal of Experimental Marine Biology and Ecology 83:27–39.
Hardegree, B., D. W. Hicks, andJ. W. Tunnell, Jr. 1996. Evaluation of burning as an oil spill cleanup technique in a high marsh community along the south Texas coast, p. 195–211.In C. E. Proffitt and P. F. Roscigno (eds.), Proceedings, Gulf of Mexico and Caribbean Oil Spills in Coastal Ecosystems: Assessing Effects, Natural Recovery and Progress in Remediation Research. OCS Study/MMS 95-0063. United States Department of Interior, Minerals Management Service, Gulf of Mexico, OCS Region. New Orleans, Louisiana.
Kiesling, R. W., S. K. Alexander, andJ. W. Webb. 1988. Evaluation of alternative oil spill cleanup techniques in aSpartina alterniflora salt marsh.Environmental Pollution 55:221–223.
Kirby, R. E., S. J. Lewis, andT. N. Sexson. 1988. Fire in North American wetland ecosystems and fire-wildlife relations: An annotated bibliography. Biological Report. No. 88(1), United States Fish and Wildlife Service, Washington, D.C.
Lin, Q. andI. A. Mendelssohn. 1996. A comparative investigation of the effects of South Louisiana crude oil on the vegetation of fresh, brackish and salt marshes.Marine Pollution Bulletin 32:202–209.
McCauley, C. A. andR. C. Harrel. 1981. Effects of oil spill cleanup techniques on a salt marsh, p. 401–407.In Proceedings of the 1981 Oil Spill Conference. American Petroleum Institute, Washington, D.C.
Mendelssohn, I. A., M. W. Hester, andJ. W. Pahl. 1995. Environmental effects and effectiveness of in-situ burning in wetlands: Considerations for oil spill cleanup. Lousiana Oil Spill Coordinator’s Office/Office of the Governor, Louisiana Applied Oil Spill Research and Development Program, Baton Rouge, Louisiana.
Prendeville, G. N. andG. F. Warren. 1977. Effect of four herbicides and two oils on leaf-cell membrane permeability.Weed Research 17:251–258.
Proffitt, C. E. and J. Young. In press. Salt marsh plant colonization, growth, and dominance on large mudflats created using dredged sediments.In L. Rosas (ed.), Proceedings: Recent Research in Louisiana. Louisiana Sea Grant, Baton Rouge, Louisiana.
Schmalzer, P. A., C. R. Hinkle, andJ. L. Mailander. 1991. Changes in community composition and biomass inJuncus roemarianus Scheele. andSpartina bakeri Merr. marshes one year after a fire.Wetlands 11:67–86.
Shay, J. M., D. J. Thompson, andC. T. Shay. 1987. Post-fire performance ofPhragmites australis (Cav.) Trin. in the Delta marsh, Manitoba, Canada.Archives of Hydrobiology 27:95–103.
Tunnell, Jr., J. W., B. Hardegree, and D. W. Hicks. 1995. Environmental impact and recovery of a high marsh pipeline oil spill and burn site, upper Copano Bay, Texas, p. 133–138.In Proceedings, 1995 Oil Spill Conference, American Petroleum Institute. Washington, D.C.
Turner, M. G. 1987. Effects of grazing feral horses, clipping, trampling and burning on a Georgia marsh.Estuaries 10:54–60.
United States Environmental Protection Agency. 1986. Method 35409. Test Methods for Evaluating Solid Waste. United States Environmental Protection Agency, Office of Solid Waste and Emergency Response. Washington, D.C.
Webb, J. W., G. T. Tanner, andB. H. Koerth. 1981. Oil spill effects on smooth cordgrass in Galveston Bay, Texas.Contributions to Marine Science 24:107–114.
Sources of Unpublished Materials
Chabreck, R. H. 1975. Management of wetlands for wildlife habitat improvement. Presented at Third Biennial Conference, Estuarine Research Federation, Galveston, Texas. October 1975.
Hester, M. W., Q. Lin, and I. A. Mendelssohn. 1997. Intraspecific variation in response to oiling in the coastal grassSpartina patens. (Abstract). Presented at the 14th Biennial Conference, Estuarine Research Federation, Providence, Rhode Island. October 1997.
Travis, S., R. Lowenfeld, and C. E. Proffitt. Unpublished data. Genetic identification using DNA RAPD analyses ofSpartina alterniflora was conducted on numerous clones in three restored sites and samples from natural marshes. Louisiana Environmental Research Center. McNeese State University, Lake Charles, Lousiana.
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Smith, D.L., Proffitt, C.E. The effects of crude oil and remediation burning on three clones of smooth cordgrass (Spartina alterniflora loisel.). Estuaries 22, 616–623 (1999). https://doi.org/10.2307/1353049
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DOI: https://doi.org/10.2307/1353049