Linking coral river runoff proxies with climate variability, hydrology and land-use in Madagascar catchments

Joseph Maina, Hans de Moel, Jan E. Vermaat, J. Henrich Bruggemann, Mireille M M Guillaume, Craig A. Grove, Joshua S. Madin, Regina Mertz-Kraus, Jens Zinke

Research output: Contribution to journalArticleResearchpeer-review

Abstract

Understanding the linkages between coastal watersheds and adjacent coral reefs is expected to lead to better coral reef conservation strategies. Our study aims to examine the main predictors of environmental proxies recorded in near shore corals and therefore how linked near shore reefs are to the catchment physical processes. To achieve these, we developed models to simulate hydrology of two watersheds in Madagascar. We examined relationships between environmental proxies derived from massive Porites spp. coral cores (spectral luminescence and barium/calcium ratios), and corresponding time-series (1950-2006) data of hydrology, climate, land use and human population growth. Results suggest regional differences in the main environmental drivers of reef sedimentation: on annual time-scales, precipitation, river flow and sediment load explained the variability in coral proxies of river discharge for the northeast region, while El Niño-Southern Oscillation (ENSO) and temperature (air and sea surface) were the best predictors in the southwest region.

LanguageEnglish
Pages2047-2059
Number of pages13
JournalMarine Pollution Bulletin
Volume64
Issue number10
DOIs
Publication statusPublished - Oct 2012

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Hydrology
Madagascar
Anthozoa
Reefs
Proxy
Runoff
Climate
Rivers
Land use
Catchments
hydrology
Coral Reefs
corals
coral
runoff
land use
catchment
climate
coral reefs
rivers

Cite this

Maina, J., de Moel, H., Vermaat, J. E., Henrich Bruggemann, J., Guillaume, M. M. M., Grove, C. A., ... Zinke, J. (2012). Linking coral river runoff proxies with climate variability, hydrology and land-use in Madagascar catchments. Marine Pollution Bulletin, 64(10), 2047-2059. https://doi.org/10.1016/j.marpolbul.2012.06.027
Maina, Joseph ; de Moel, Hans ; Vermaat, Jan E. ; Henrich Bruggemann, J. ; Guillaume, Mireille M M ; Grove, Craig A. ; Madin, Joshua S. ; Mertz-Kraus, Regina ; Zinke, Jens. / Linking coral river runoff proxies with climate variability, hydrology and land-use in Madagascar catchments. In: Marine Pollution Bulletin. 2012 ; Vol. 64, No. 10. pp. 2047-2059.
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Maina, J, de Moel, H, Vermaat, JE, Henrich Bruggemann, J, Guillaume, MMM, Grove, CA, Madin, JS, Mertz-Kraus, R & Zinke, J 2012, 'Linking coral river runoff proxies with climate variability, hydrology and land-use in Madagascar catchments' Marine Pollution Bulletin, vol. 64, no. 10, pp. 2047-2059. https://doi.org/10.1016/j.marpolbul.2012.06.027

Linking coral river runoff proxies with climate variability, hydrology and land-use in Madagascar catchments. / Maina, Joseph; de Moel, Hans; Vermaat, Jan E.; Henrich Bruggemann, J.; Guillaume, Mireille M M; Grove, Craig A.; Madin, Joshua S.; Mertz-Kraus, Regina; Zinke, Jens.

In: Marine Pollution Bulletin, Vol. 64, No. 10, 10.2012, p. 2047-2059.

Research output: Contribution to journalArticleResearchpeer-review

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