caa a22 4500 445820039 CHVBK 20180317145241.0 cr unu---uuuuu 170323e20110601xx s 000 0 eng 10.1007/s00338-011-0729-3 doi (NATIONALLICENCE)springer-10.1007/s00338-011-0729-3 Bacterial decomposition of coral mucus as evaluated by long-term and quantitative observation [Elektronische Daten] [Y. Tanaka, H. Ogawa, T. Miyajima] Coral mucus released from Acropora formosa and Montipora digitata was incubated with bacteria under dark conditions for 1year to evaluate the quantitative degradability. All the mucus samples showed a similar decomposition pattern: about 80% of total organic carbon (TOC) in the mucus was mineralized within 1month, while some mucus was slowly decomposed over the 1year. Regression analysis using an exponential curve considering three degradability pools (labile, semilabile, and refractory) fitted the changes of the TOC concentrations very well (r 2>0.99). Compiling the data on the two coral species, the labile organic C in the coral mucus had mineralization rates of 10-18% d−1 and accounted for 79-87% of the initial TOC in the mucus. Semilabile organic C had mineralization rates of 0.3−1.6% d−1 and accounted for 11−18% of the initial TOC. Refractory organic C accounted for 6% at most. These results suggest that not all coral mucus is rapidly decomposed by bacteria but some mucus remains as semilabile and refractory organic matter for several months. Springer-Verlag, 2011 Coral mucus nationallicence Mineralization nationallicence Bacteria nationallicence Coral reef nationallicence Refractory organic matter nationallicence Tanaka Y. Marine Biogeochemistry Laboratory, Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwanoha 5-1-5, 277-8564, Kashiwa, Chiba, Japan aut Ogawa H. Marine Biogeochemistry Laboratory, Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwanoha 5-1-5, 277-8564, Kashiwa, Chiba, Japan aut Miyajima T. Marine Biogeochemistry Laboratory, Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwanoha 5-1-5, 277-8564, Kashiwa, Chiba, Japan aut Coral Reefs Springer-Verlag 30/2(2011-06-01), 443-449 0722-4028 30:2<443 2011 30 338 https://doi.org/10.1007/s00338-011-0729-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00338-011-0729-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Tanaka Y. Marine Biogeochemistry Laboratory, Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwanoha 5-1-5, 277-8564, Kashiwa, Chiba, Japan aut NATIONALLICENCE 700 1- Ogawa H. Marine Biogeochemistry Laboratory, Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwanoha 5-1-5, 277-8564, Kashiwa, Chiba, Japan aut NATIONALLICENCE 700 1- Miyajima T. Marine Biogeochemistry Laboratory, Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwanoha 5-1-5, 277-8564, Kashiwa, Chiba, Japan aut NATIONALLICENCE 773 0- Coral Reefs Springer-Verlag 30/2(2011-06-01), 443-449 0722-4028 30:2<443 2011 30 338 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer