Solar ultraviolet photodegradation of DOC may stimulate freshwater food webs

The UV component in solar radiation increased the availability of DOC for bacterial growth, and led to an increase in bacterial and bacterivore abundance in laboratory plankton cultures. UV radiation may thus stimulate ecosystem productivity by increasing dissolved organic carbon lability and facili...

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Veröffentlicht in:	Journal of plankton research 2003-01, Vol.25 (1), p.111-117
Hauptverfasser:	De Lange, Hendrika J., Morris, Donald P., Williamson, Craig E.
Format:	Artikel
Sprache:	eng
Schlagworte:	Animal and plant ecology Animal, plant and microbial ecology bacterial-growth Biological and medical sciences carbon Dissolved organic carbon dissolved organic-matter Food webs Fresh water Fresh water ecosystems Freshwater Fundamental and applied biological sciences. Psychology Inland water environment Lability lakes marine bacterioplankton nitrogen nutrients photochemical transformation Photodegradation Plankton radiation Solar radiation surface Synecology Trophic levels U.V. radiation Ultraviolet radiation
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Beschreibung
Zusammenfassung:	The UV component in solar radiation increased the availability of DOC for bacterial growth, and led to an increase in bacterial and bacterivore abundance in laboratory plankton cultures. UV radiation may thus stimulate ecosystem productivity by increasing dissolved organic carbon lability and facilitating the transfer of carbon to higher trophic levels via the microbial loop.
ISSN:	0142-7873 1464-3774 1464-3774
DOI:	10.1093/plankt/25.1.111