Advertisement

AMBIO

, Volume 43, Issue 3, pp 379–380 | Cite as

Response to “Selective Evidence of Eutrophication in the Great Barrier Reef” by Furnas et al.

  • Peter R. F. Bell
  • Ibrahim Elmetri
  • Brian E. Lapointe
Comment
  • 210 Downloads

Comment to: Furnas, M., B. Schaffelke, and A.D. McKinnon. 2014. Selective Evidence of Eutrophication in the Great Barrier Reef: Comment on Bell et al. (2014). AMBIO. doi:  10.1007/s13280-013-0471-x.

Furnas et al. (2014) suggest that our conclusions are based upon limited sampling programs. However, we note that our principal conclusions, namely, (i) that hard coral cover in the Great Barrier Reef (GBR) has reduced by >70 % over the past century and (ii) that most GBR regions are characterized by Chl a values exceeding the defined chronic-eutrophic state (i.e., >0.2 mg m−3), are based on the extensive AIMS assembled data sets (e.g., see Fig. 3 in Bell et al. 2014).

Furnas et al. note that the ocean color data presented in Figs. 4 and 5, and in particular the data in the near-shore regions, do not represent accurate levels of Chl a. We generally agree with this assessment but note that we have not used these data in deriving the Eutrophication Threshold Model (ETM). We note that...

Keywords

Great Barrier Reef Coral Cover Gelatinous Zooplankton East Australian Current Hard Coral Cover 
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.

References

  1. Bell, P.R.F., and I. Elmetri. 1995. Ecological indicators of large scale eutrophication in the Great Barrier Reef (GBR) Lagoon. AMBIO 24: 208–215.Google Scholar
  2. Bell, P.R.F., and A.J. Gabric. 1990. The use of field survey and satellite remote sensing in determining the extent and causes of eutrophication in the Great Barrier Reef Lagoon, Australia. In Proceedings of the fourth Pacific congress on marine science and technology, Vol. II: 25–32. Tokyo: PACON 90.Google Scholar
  3. Bell, P.R.F., I. Elmetri, and P. Uwins. 1999. Nitrogen fixation of Trichodesmium spp. in the Great Barrier Reef Lagoon-importance to the overall nitrogen budget. Marine Ecology Progress Series 186: 119–126.CrossRefGoogle Scholar
  4. Bell, P.R.F., I. Elmetri, and B.E. Lapointe. 2014. Evidence of large-scale chronic eutrophication in the Great Barrier Reef: Quantification of chlorophyll a thresholds for sustaining coral reef communities. AMBIO. doi: 10.1007/s13280-013-0443-1.Google Scholar
  5. Furnas, M., B. Schaffelke, and A.D. McKinnon. 2014. Selective evidence of eutrophication in the Great Barrier Reef: Comment on Bell et al. (2014). AMBIO. doi: 10.1007/s13280-013-0471-x.
  6. Gabric, A.J., P. Hoffenberg, and W. Boughton. 1990. Spatio-temporal variability in surface chlorophyll distribution in the central Great Barrier Reef as derived from CZCS imagery. Australian Journal of Marine and Freshwater Research 41: 313–324.CrossRefGoogle Scholar
  7. McGee, C. 2010. Numeric nutrient criteria development for the Florida Keys. http://www.dep.state.fl.us/water/wqssp/nutrients/estuarine.htm. Accessed December 5, 2013.
  8. Middleton, J.H., P. Coutis, D.A. Griffin, A. Macks, A. McTaggart, M.A. Merrifield, and G.J. Nippard. 1994. Circulation and water mass characteristics of the Southern Great Barrier Reef. Australian Journal of Marine and Freshwater Research 45: 1–18.CrossRefGoogle Scholar

Copyright information

© Royal Swedish Academy of Sciences 2014

Authors and Affiliations

  • Peter R. F. Bell
    • 1
  • Ibrahim Elmetri
    • 2
  • Brian E. Lapointe
    • 3
  1. 1.School of Chemical/Environmental EngineeringUniversity of QueenslandSt LuciaAustralia
  2. 2.AMZA LtdWellingtonNew Zealand
  3. 3.Harbor Branch Oceanographic InstituteFlorida Atlantic UniversityFort PierceUSA

Personalised recommendations