Response of a scleractinian coral, Stylophora pistillata, to iron and nitrate enrichment

Journal of Experimental Marine Biology and Ecology
Christine Ferrier-PagèsOve Hoegh-Guldberg

Abstract

The purpose of this study was to determine whether the addition of iron alone or in combination with nitrate affects growth and photosynthesis of the scleractinian coral, Stylophora pistillata, and its symbiotic dinoflagellates. For this purpose, we used three series of two tanks for a 3-week enrichment with iron (Fe), nitrate (N) and nitrate+iron (NFe). Two other tanks were kept as a control (C). Stock solutions of FeCl(3) and NaNO(3) were diluted to final concentrations of 6 nM Fe and 2 &mgr;M N and continuously pumped from batch tanks into the experimental tanks with a peristaltic pump. Results obtained showed that iron addition induced a significant increase in the areal density of zooxanthellae (ANOVA, p=0.0013; change from 6.3+/-0.7x10(5) in the control to 8.5+/-0.6x10(5) with iron). Maximal gross photosynthetic rates normalized per surface area also significantly increased following iron enrichment (ANOVA, p=0.02; change from 1.23+/-0.08 for the control colonies to 1.81+/-0.24 &mgr;mol O(2) cm(-2) h(-1) for the iron-enriched colonies). There was, however, no significant difference in the photosynthesis normalized on a per cell basis. Nitrate enrichment alone (2 &mgr;M) did not significantly change the zooxanthellae densi...Continue Reading

References

Jul 11, 1998·Science·P G FalkowskiV Smetacek

❮ Previous
Next ❯

Citations

May 18, 2011·Marine Biotechnology·Ronald OsingaSilvia Lavorano
Mar 13, 2012·Biological Reviews of the Cambridge Philosophical Society·Hill Malcolm, Hill April
Mar 5, 2008·Plant, Cell & Environment·David YellowleesWilliam Leggat
May 23, 2015·Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology·Po-Ching SongMing-Chyuan Chen
Mar 5, 2020·Proceedings. Biological Sciences·Thomas KruegerAnders Meibom
Nov 16, 2018·Scientific Reports·Tom BiscéréFanny Houlbrèque
Oct 1, 2020·Journal of Phycology·Hannah G ReichTung-Yuan Ho
Oct 12, 2021·The Science of the Total Environment·Gabriel O CardosoRodrigo L Moura

❮ Previous
Next ❯

Related Feeds

Anxiety Disorders

Discover the latest research on anxiety disorders including agoraphobia, panic disorder, obsessive-compulsive disorder, and post-traumatic stress disorder here.