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Coral community response to bleaching on a highly disturbed reef
Guest, J.R.; Low, J.; Tun, K.; Wilson, B.; Ng, C.; Raingeard, D.; Ulstrup, K.E.; Tanzil, J.T.I.; Todd, P.A.; Toh, T.C.; McDougald, D.; Steinberg, P.D. (2016). Coral community response to bleaching on a highly disturbed reef. NPG Scientific Reports 6(20717): 10 pp. http://dx.doi.org/10.1038/srep20717
In: Scientific Reports (Nature Publishing Group). Nature Publishing Group: London. ISSN 2045-2322; e-ISSN 2045-2322
|   |
| Auteurs | | Top |
- Guest, J.R.
- Low, J.
- Tun, K.
- Wilson, B.
|
- Ng, C.
- Raingeard, D.
- Ulstrup, K.E.
- Tanzil, J.T.I.
|
- Todd, P.A.
- Toh, T.C.
- McDougald, D.
- Steinberg, P.D.
|
| Abstract |
While many studies of coral bleaching report on broad, regional scale responses, fewer examine variation in susceptibility among coral taxa and changes in community structure, before, during and after bleaching on individual reefs. Here we report in detail on the response to bleaching by a coral community on a highly disturbed reef site south of mainland Singapore before, during and after a major thermal anomaly in 2010. To estimate the capacity for resistance to thermal stress, we report on: a) overall bleaching severity during and after the event, b) differences in bleaching susceptibility among taxa during the event, and c) changes in coral community structure one year before and after bleaching. Approximately two thirds of colonies bleached, however, post-bleaching recovery was quite rapid and, importantly, coral taxa that are usually highly susceptible were relatively unaffected. Although total coral cover declined, there was no significant change in coral taxonomic community structure before and after bleaching. Several factors may have contributed to the overall high resistance of corals at this site including Symbiodinium affiliation, turbidity and heterotrophy. Our results suggest that, despite experiencing chronic anthropogenic disturbances, turbid shallow reef communities may be remarkably resilient to acute thermal stress. |
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