Document Detail

Impact of elevated ammonium on reproduction in two Hawaiian scleractinian corals with different life history patterns.
MedLine Citation:
PMID:  12523521     Owner:  NLM     Status:  MEDLINE    
Elevated nutrients have the potential to disrupt reproduction in scleractinian corals, with consequent impacts on population dynamics. Reproduction in broadcast spawning (Montipora capitata) and brooding (Pocillopora damicornis) species was assessed following exposure to elevated ammonium in a microcosm experiment. Planulation in P. damicornis ceased following 4 months of ammonium exposure and did not recover until 3 months after termination of nutrient enrichment. Larval settlement and survivorship were not affected by ammonium enrichment. Few significant changes were found for reproductive parameters of M. capitata. There was a significant but small decrease in egg size (430 microm in control eggs to 408 microm in eggs from ammonium enrichment treatments), but no differences in total fecundity or fertilization success. This may be related to the presence of zooxanthellae in the eggs of M. capitata, in contrast to changes in reproduction previously reported in Acropora species, whose eggs do not contain zooxanthellae.
Evelyn F Cox; Selina Ward
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Marine pollution bulletin     Volume:  44     ISSN:  0025-326X     ISO Abbreviation:  Mar. Pollut. Bull.     Publication Date:  2002 Nov 
Date Detail:
Created Date:  2003-01-13     Completed Date:  2003-05-01     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0260231     Medline TA:  Mar Pollut Bull     Country:  England    
Other Details:
Languages:  eng     Pagination:  1230-5     Citation Subset:  IM    
Hawaii Institute of Marine Biology, P.O. Box 1346, Kaneohe, HI 96744, USA.
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MeSH Terms
Anthozoa / drug effects*,  parasitology,  physiology*
Population Dynamics
Quaternary Ammonium Compounds / pharmacology*
Reproduction / drug effects
Reg. No./Substance:
0/Quaternary Ammonium Compounds

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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