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231224s2008 xx |||||o 00| ||eng c |
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|a 10.1111/j.1529-8817.2008.00539.x
|2 doi
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|a eng
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| 100 |
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|a Bucolo, Philip
|e verfasserin
|4 aut
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| 245 |
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|a EFFECTS OF NUTRIENT ENRICHMENT ON PRIMARY PRODUCTION AND BIOMASS OF SEDIMENT MICROALGAE IN A SUBTROPICAL SEAGRASS BED(1)
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|c 2008
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|a Text
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Completed 05.04.2016
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|a Date Revised 04.04.2016
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2008 Phycological Society of America.
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|a Eutrophication of coastal waters often leads to excessive growth of microalgal epiphytes attached to seagrass leaves; however, the effect of increased nutrient levels on sediment microalgae has not been studied within seagrass communities. A slow-release NPK Osmocote fertilizer was added to sediments within and outside beds of the shoal grass Halodule wrightii, in Big Lagoon, Perdido Key, Florida. Gross primary production (GPP) and biomass (HPLC photopigments) of sediment microalgae within and adjacent to fertilized and control H. wrightii beds were measured following two 4-week enrichment periods during June and July 2004. There was no effect of position on sediment microalgal GPP or biomass in control and enriched plots. However, nutrient enrichment significantly increased GPP in both June and July. These results suggest that sediment microalgae could fill some of the void in primary production where seagrass beds disappear due to excessive nutrient enrichment. Sedimentary chl a (proxy of total microalgal biomass) significantly increased only during the June enrichment period, whereas fucoxanthin (proxy of total diatom biomass) was not increased by nutrient enrichment even though its concentration doubled in the enriched plots in June
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|a Journal Article
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|a Halodule wrightii
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|a eutrophication
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|a fucoxanthin
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|a gross primary production
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|a seagrass
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|a sediment microalgae
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|a Sullivan, Michael J
|e verfasserin
|4 aut
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|a Zimba, Paul V
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of phycology
|d 1966
|g 44(2008), 4 vom: 15. Aug., Seite 874-81
|w (DE-627)NLM098182994
|x 1529-8817
|7 nnns
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| 773 |
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|g volume:44
|g year:2008
|g number:4
|g day:15
|g month:08
|g pages:874-81
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|u http://dx.doi.org/10.1111/j.1529-8817.2008.00539.x
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