期刊
BIOLOGY LETTERS
卷 8, 期 2, 页码 282-286出版社
ROYAL SOC
DOI: 10.1098/rsbl.2011.0836
关键词
endozoochorous; zooxanthellae; environmental Symbiodinium; Sparisoma viride; parrotfishes; cp23 gene
资金
- Banco de la Republica (Colombia)
- Facultad de Ciencias, Universidad de los Andes
- NOAA [NA07NOS4630021]
- National Natural Parks [UAESPNN, DTC-T 036 03-09]
Environmental reservoirs of zooxanthellae are essential for coral larvae settlement; understanding where they occur and how they are maintained is important for coral reef ecology. This study investigated the dispersal of Symbiodinium spp. by the stoplight parrotfish Sparisoma viride, which had high mean densities of viable and cultivable Symbiodinium (3207-8900 cells ml(-1)) in faeces. Clades A, B and G were detected using amplified chloroplast ribosomal sequences (cp23S-HVR), and corresponded with diet preferences of fish and the environmental Symbiodinium diversity of the region. Cells are constantly dispersed in the water column and deposited in the substrate at a local level (86 +/- 17.8 m(2)), demonstrating that parrotfishes are vectors for short-distance dispersal of zooxanthellae. Such dispersal could constitute a key role in the maintenance of environmental Symbiodiniumreservoirs.
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