Otolith geochemistry does not reflect dispersal history of clownfish larvae
Berumen, Michael L.
Walsh, Harvey J.
Jones, Geoffrey P.
Starczak, Victoria R.
Thorrold, Simon R.
MetadataShow full item record
KeywordAmphiprion percula; Connectivity; Natural markers; Otolith chemistry; Papua New Guinea; Pelagic larval duration
Natural geochemical signatures in calcified structures are commonly employed to retrospectively estimate dispersal pathways of larval fish and invertebrates. However, the accuracy of the approach is generally untested due to the absence of individuals with known dispersal histories. We used genetic parentage analysis (genotyping) to divide 110 new recruits of the orange clownfish, Amphiprion percula, from Kimbe Island, Papua New Guinea, into two groups: “self-recruiters” spawned by parents on Kimbe Island and “immigrants” that had dispersed from distant reefs (>10km away). Analysis of daily increments in sagittal otoliths found no significant difference in PLDs or otolith growth rates between self-recruiting and immigrant larvae. We also quantified otolith Sr/Ca and Ba/Ca ratios during the larval phase using laser ablation inductively coupled plasma mass spectrometry. Again, we found no significant differences in larval profiles of either element between self-recruits and immigrants. Our results highlight the need for caution when interpreting otolith dispersal histories based on natural geochemical tags in the absence of water chemistry data or known-origin larvae with which to test the discriminatory ability of natural tags.
Author Posting. © The Author(s), 2010. This is the author's version of the work. It is posted here by permission of Springer for personal use, not for redistribution. The definitive version was published in Coral Reefs 29 (2010): 883-891, doi:10.1007/s00338-010-0652-z.
Suggested CitationPreprint: Berumen, Michael L., Walsh, Harvey J., Raventos, N., Planes, Serge, Jones, Geoffrey P., Starczak, Victoria R., Thorrold, Simon R., "Otolith geochemistry does not reflect dispersal history of clownfish larvae", 2010-06, https://doi.org/10.1007/s00338-010-0652-z, https://hdl.handle.net/1912/4196
Showing items related by title, author, creator and subject.
Walther, Benjamin D.; Thorrold, Simon R. (NRC Research Press, 2008-11-26)We assembled a comprehensive atlas of geochemical signatures in juvenile American shad (Alosa sapidissima) to discriminate natal river origins on a large spatial scale and at a high spatial resolution. Otoliths and (or) ...
Inter-annual variability in isotope and elemental ratios recorded in otoliths of an anadromous fish Walther, Benjamin D.; Thorrold, Simon R. (2008-10)Isotope ratios and elemental concentrations in otoliths are often used as natural tags to reconstruct migratory movements and connectivity patterns in marine and anadromous fishes. Although differences in otolith ...
Walther, Benjamin D.; Thorrold, Simon R.; Olney, John E. (American Fisheries Society, 2008-01-03)Population connectivity is a critical component in the life history dynamics of anadromous fishes and in the persistence of local populations. We used geochemical signatures in the otoliths of American shad Alosa sapidissima ...