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Conflicting estimates of connectivity among deep-sea coral populations
Citation
Miller, KJ and Williams, A and Rowden, AA and Knowles, CL and Dunshea, GJ, Conflicting estimates of connectivity among deep-sea coral populations, Marine Ecology, 31, (Suppl. 1) pp. 144-157. ISSN 0173-9565 (2010) [Refereed Article]
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Copyright Statement
The definitive published version is available online at: http://onlinelibrary.wiley.com/
Official URL: http://onlinelibrary.wiley.com/
DOI: doi:10.1111/j.1439-0485.2010.00380.x
Abstract
Genetic data were used as an indirect means of assessing connectivity among
deep-sea coral populations on seamounts and slopes in the Australian and New
Zealand region. We sequenced three DNA regions (16S, ITS and Control
Region) in nine deep-sea coral species from sites spanning thousands of kilometers.
Based on haplotype distributions and AMOVA, we found evidence of
genetic subdivision across ocean expanses for three species: the scleractinian
Desmophyllum dianthus, and the antipatharians Antipathes robillardi and Stichopathes
variabilis. Levels of genetic variation were low for the remaining species,
including the reef-forming Solenosmila variablis and Madrepora oculata,
and more sensitive molecular markers may be needed to resolve their spatial
structure properly. For two species (the scleractinian Stephanocyathus spiniger
and the antipatharian Stichopathes filiformis), we found no evidence of genetic
subdivision among sites within regions, suggesting sufficient gene flow occurs
to maintain genetic homogeneity at scales of tens to hundreds of kilometers.
Recognising that some seamount regions and coral populations are, or are not,
effectively isolated will be a key component of successful management planning
based on marine protected area networks both within and beyond national
jurisdictions.
Item Details
| Item Type: | Refereed Article |
|---|---|
| Keywords: | Connectivity; conservation; coral; deep-sea; DNA; genetics; larval dispersal; seamounts. |
| Research Division: | Biological Sciences |
| Research Group: | Ecology |
| Research Field: | Marine and estuarine ecology (incl. marine ichthyology) |
| Objective Division: | Environmental Management |
| Objective Group: | Marine systems and management |
| Objective Field: | Marine biodiversity |
| UTAS Author: | Miller, KJ (Dr Karen Miller) |
| UTAS Author: | Knowles, CL (Dr Claire Knowles) |
| UTAS Author: | Dunshea, GJ (Mr Glenn Dunshea) |
| ID Code: | 66145 |
| Year Published: | 2010 |
| Web of Science® Times Cited: | 48 |
| Deposited By: | IMAS Research and Education Centre |
| Deposited On: | 2011-01-05 |
| Last Modified: | 2011-05-10 |
| Downloads: | 1 View Download Statistics |
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