We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Effects of coral-derived organic matter on the growth of bacterioplankton and heterotrophic nanoflagellates.
- Authors
Nakajima, Ryota; Guillemette, Ryan; Tanaka, Yasuaki; Kurihara, Haruko
- Abstract
Exudates derived from hermatypic corals were incubated with <2 µm filtered seawater containing heterotrophic bacteria and <10 µm filtered seawater containing bacteria and nanoflagellates (HNF) under dark conditions for 96 h to quantify the growth of both bacteria and HNF in response to coral-derived dissolved organic matter (DOM). The addition of coral-derived DOM caused significantly higher growth rates and production of bacteria and HNF compared to those in control seawater without coral exudates. During the incubation, HNF exhibited their peak in abundance 24-48 h after the peak abundance of bacteria. The growth efficiencies of both bacteria and HNF were significantly higher with coral-derived DOM, suggesting higher transfer efficiency from bacteria that is fueled by coral organic matter to HNF. Therefore, trophic transfer of coral-derived DOM from bacteria to HNF can contribute to efficient carbon flow through the microbial food web.
- Subjects
ORGANIC compound content of seawater; BACTERIAL growth; CORAL ecology; BACTERIOPLANKTON; BACTERIAL flagella; HETEROTROPHIC bacteria
- Publication
Coral Reefs, 2017, Vol 36, Issue 4, p1171
- ISSN
0722-4028
- Publication type
Article
- DOI
10.1007/s00338-017-1608-3