PHOTODEGRADATION OF ALGAL DERIVED DISSOLVED ORGANIC-CARBON

Authors
THOMAS DN LARA RJ
Citation
Dn. Thomas et Rj. Lara, PHOTODEGRADATION OF ALGAL DERIVED DISSOLVED ORGANIC-CARBON, Marine ecology. Progress series, 116(1-3), 1995, pp. 309-310
Citations number
9
Categorie Soggetti
Marine & Freshwater Biology",Ecology
Journal title
Marine ecology. Progress series → ACNP
ISSN journal
01718630
Volume
116
Issue
1-3
Year of publication
1995
Pages
309 - 310
Database
ISI
SICI code
0171-8630(1995)116:1-3<309:POADDO>2.0.ZU;2-D
Abstract
C-14-radiolabelled dissolved organic carbon ((DOC)-C-14) produced in a Thalassiosira tumida culture was aged in the dark for 8 mo and irradi ated for 15 h at a UV intensity of 40 W m(-2) at 350 +/- 20 nm. Compar ison with control bottles showed no evidence of (DOC)-C-14 decrease. F ractionation with XAD-2 resin before and after irradiation indicated n o changes in the humic fractions. This suggests that a pool of autocht honous marine DOC might be relatively resistant against natural UV rad iation.