Effect of Ammonium Enrichment on Respiration, Zooxanthellar Densities, and Pigment Concentrations in Two Species of Hawaiian Corals
| dc.contributor.author | Stambler, Noga | |
| dc.contributor.author | Cox, Evelyn F. | |
| dc.contributor.author | Vago, Razi | |
| dc.date.accessioned | 2008-08-05T05:52:37Z | |
| dc.date.available | 2008-08-05T05:52:37Z | |
| dc.date.issued | 1994-07 | |
| dc.description.abstract | Small branch tips or "nubbins" of two species of Hawaiian corals, Pocillopora damicornis (Linnaeus) and Montipora verrucosa Vaughan, were exposed to four ammonium concentrations, ammonium-stripped < 2 uM), ambient (~2 uM), and two enriched (20 uM and 50 uM) in microcosm tanks. Nubbins represent replicates of a single coral colony. We examined the effect of ammonium enrichment on zooxanthellar densities, pigment concentrations, and respiration rates of the nubbins. Nubbins of both P. damicornis and M. verrucosa showed a trend of increased pigment concentration with elevated ammonium concentration. Pocillopora damicornis increased from 9.3 ug chlorophyll a cm-2 in the ammonium-stripped treatment to 24.8 ug cm-2 in the 50-uM ammonium treatment. Similarly, M. verrucosa increased from 1.9 to 19.4 ug chlorophyll a cm-2. There were no significant differences in algal densities, pigment concentrations per cell, pigment ratios, or respiration rates. | |
| dc.identifier.citation | Stambler N, Cox EF, Vago R. 1994. Effect of ammonium enrichment on respiration, zooxanthellar densities, and pigment concentrations in two species of Hawaiian corals. Pac Sci 48(3): 284-290. | |
| dc.identifier.issn | 0030-8870 | |
| dc.identifier.uri | http://hdl.handle.net/10125/2237 | |
| dc.language.iso | en-US | |
| dc.publisher | University of Hawaii Press | |
| dc.title | Effect of Ammonium Enrichment on Respiration, Zooxanthellar Densities, and Pigment Concentrations in Two Species of Hawaiian Corals | |
| dc.type | Article | |
| dc.type.dcmi | Text |