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How many species of goliath grouper are there? Cryptic genetic divergence in a threatened marine fish and the resurrection of a geopolitical species

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dc.contributor.author Craig, Matthew T. en
dc.contributor.author Graham, Rita T. en
dc.contributor.author Torres, R. A. en
dc.contributor.author Hyde, J. R. en
dc.contributor.author Freitas, M. O. en
dc.contributor.author Ferreira, B. P. en
dc.contributor.author Hostim-Silva, M. en
dc.contributor.author Gerhardinger, L. C. en
dc.contributor.author Bertoncini, A. A. en
dc.contributor.author Robertson, D. Ross en
dc.date.accessioned 2011-02-09T20:02:13Z
dc.date.available 2011-02-09T20:02:13Z
dc.date.issued 2009
dc.identifier.citation Craig, Matthew T., Graham, Rita T., Torres, R. A., Hyde, J. R., Freitas, M. O., Ferreira, B. P., Hostim-Silva, M., Gerhardinger, L. C., Bertoncini, A. A., and Robertson, D. Ross. 2009. "<a href="https%3A%2F%2Frepository.si.edu%2Fhandle%2F10088%2F11831">How many species of goliath grouper are there? Cryptic genetic divergence in a threatened marine fish and the resurrection of a geopolitical species</a>." <em>Endangered Species Research</em>. 7 (3):167&ndash;174. <a href="https://doi.org/10.3354/esr00117">https://doi.org/10.3354/esr00117</a> en
dc.identifier.uri http://hdl.handle.net/10088/11831
dc.description.abstract The goliath grouper Epinephelus itajara (Epinephelidae) is an exceptionally large marine fish that inhabits sub-tropical and tropical waters of the Americas and western Africa. Due to a lack of readily observable morphological variation in specimens across its range, the goliath grouper has been regarded as a single species. We tested the hypothesis that Pacific and West Atlantic populations constitute a single species by analyzing nuclear and mitochondrial DNA sequence data. We found numerous fixed genetic differences for mitochondrial loci between Pacific and West Atlantic goliath grouper (genetic distance D 3.5% at 16S and D 6% at cytochrome b; ?st = 0.98 [p 0.001] for 16S and ?st = 0.98 [p 0.001] for cytochrome b). The nuclear S7 intron showed 3 fixed nucleotide differences between Pacific and West Atlantic populations. Within the West Atlantic, we found few absolute genetic differences (D D b), but statistically significant population structure based on haplotype frequency data (?st = 0.04 [p = 0.05] at 16S; ?st = 0.14 [p 0.001] at cytochrome b). These data indicate that (1) goliath grouper in the West Atlantic are subdivided into discrete populations, (2) goliath grouper populations in the Pacific and western Atlantic represent 2 (or more) distinct species, and (3) these distinct populations/species require separate management and conservation strategies. We resurrect the species Epinephelus quinquefasciatus Bocourt 1868 for Pacific goliath grouper. en
dc.relation.ispartof Endangered Species Research en
dc.title How many species of goliath grouper are there? Cryptic genetic divergence in a threatened marine fish and the resurrection of a geopolitical species en
dc.type Journal Article en
dc.identifier.srbnumber 74246
dc.identifier.doi 10.3354/esr00117
rft.jtitle Endangered Species Research
rft.volume 7
rft.issue 3
rft.spage 167
rft.epage 174
dc.description.SIUnit Encyclopedia of Life en
dc.description.SIUnit Forces of Change en
dc.description.SIUnit Marine Biology en
dc.description.SIUnit Naos Island Laboratories en
dc.description.SIUnit STRI en
dc.citation.spage 167
dc.citation.epage 174


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