Nutrient thresholds for bottom‐up control of macroalgal blooms on coral reefs in Jamaica and southeast Florida
- B. Lapointe
- Environmental Science
- 1 July 1997
This study tested the hypothesis that because the phase shift on reefs in Jamaica and southeast Florida involved frondose macroalgae, bottom-up control via nutrient enrichment must be a causal factor, and high seawater DIN : SRP ratios, alkaline phosphatase activity, and tissue C : P and N : P ratios suggested SRP limitation of productivity compared to lower values of these variables on siliciclastic reefs in Florida that suggested DIN limitation.
Anthropogenic nutrient enrichment of seagrass and coral reef communities in the Lower Florida Keys: discrimination of local versus regional nitrogen sources
- B. Lapointe, P. Barile, William R. Matzie
- Environmental Science
- 8 September 2004
Issues in ecology: Nutrient pollution of coastal rivers, bays, and seas
- R. Howarth, D. B. Anderson, D. Walker
- Environmental Science
- 2000
The great Atlantic Sargassum belt
- Mengqiu Wang, C. Hu, B. Barnes, G. Mitchum, B. Lapointe, J. Montoya
- Environmental ScienceScience
- 4 July 2019
Recent increases and interannual variability after 2011 appear to be driven by upwelling off West Africa during boreal winter and by Amazon River discharge during spring and summer, indicating a possible regime shift and raising the possibility that recurrent blooms in the tropical Atlantic and Caribbean Sea may become the new norm.
Productivity and biomass of Thalassia testudinum as related to water column nutrient availability and epiphyte levels: field observations and experimental studies
- D. Tomasko, B. Lapointe
- Environmental Science
- 1991
Nutrient availability to marine macroalgae in siliciclastic versus carbonate-rich coastal waters
- B. Lapointe, M. Littler, D. S. Littler
- Environmental Science
- 1 March 1992
Abundant populations of frondose epilithic macroalgae from a variety of carbonate-rich tropical waters were significantly depleted in phosphorus relative to carbon and nitrogen when compared to…
Phosphorus- and nitrogen-limited photosynthesis and growth of Gracilaria tikvahiae (Rhodophyceae) in the Florida Keys: an experimental field study
- B. Lapointe
- Environmental Science
- 1987
This seasonal pattern of N vs P limited growth of G. tikvahiae appears to be a response to seasonally variable dissolved inorganic N and constantly low to undetectable concentrations of PO43-.
Nutrient couplings between on-site sewage disposal systems, groundwaters, and nearshore surface waters of the Florida Keys
- B. Lapointe, Julie D. O'Connell, G. Garrett
- Environmental Science
- 1 July 1990
We performed a one-year study to determine the effects of on-site sewage disposal systems (OSDS, septic tanks) on the nutrient relations of limestone groundwaters and nearshore surface waters of the…
...
...