Nitrogen and phosphorus uptake rates of different species from a coral reef community after a nutrient pulse
| Autor: | Stefan Schouten, Mark J. A. Vermeij, Jef Huisman, Hannah J Brocke, Seth van Heeringen, Joost den Haan, Kelly R. W. Latijnhouwers, C. Cerli, Petra M. Visser, Saskia A. S. Honcoop, Henry Goehlich, Leo Hoitinga, Tanja E. Bleyenberg |
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| Přispěvatelé: | Aquatic Microbiology (IBED, FNWI) |
| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
Nitrogen Fringing reef Coral Biology 010603 evolutionary biology 01 natural sciences Article Phosphates Phosphorus metabolism Ammonia Phosphate Coral Reef Animals Seawater 14. Life underwater Reef geography Multidisciplinary geography.geographical_feature_category Coral Reefs Ecology 010604 marine biology & hydrobiology fungi Curacao Phosphorus Coral reef Eutrophication Anthozoa biology.organism_classification Kinetics Benthic zone Cladophora Water Pollutants Chemical geographic locations |
| Zdroj: | Scientific Reports Scientific Reports, 6. NLM (Medline) Scientific reports, 6:28821 Scientific Reports, 6:28821. Nature Publishing Group |
| ISSN: | 2045-2322 |
| DOI: | 10.1038/srep28821 |
| Popis: | Terrestrial runoff after heavy rainfall can increase nutrient concentrations in waters overlying coral reefs that otherwise experience low nutrient levels. Field measurements during a runoff event showed a sharp increase in nitrate (75-fold), phosphate (31-fold) and ammonium concentrations (3-fold) in waters overlying a fringing reef at the island of Curaçao (Southern Caribbean). To understand how benthic reef organisms make use of such nutrient pulses, we determined ammonium, nitrate and phosphate uptake rates for one abundant coral species, turf algae, six macroalgal and two benthic cyanobacterial species in a series of laboratory experiments. Nutrient uptake rates differed among benthic functional groups. The filamentous macroalga Cladophora spp., turf algae and the benthic cyanobacterium Lyngbya majuscula had the highest uptake rates per unit biomass, whereas the coral Madracis mirabilis had the lowest. Combining nutrient uptake rates with the standing biomass of each functional group on the reef, we estimated that the ammonium and phosphate delivered during runoff events is mostly taken up by turf algae and the two macroalgae Lobophora variegata and Dictyota pulchella. Our results support the often proposed, but rarely tested, assumption that turf algae and opportunistic macroalgae primarily benefit from episodic inputs of nutrients to coral reefs. |
| Databáze: | OpenAIRE |
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