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Comparative population genetics and evolutionary history of two commonly misidentified billfishes of management and conservation concern

Overview of attention for article published in BMC Genetics, December 2014
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Title
Comparative population genetics and evolutionary history of two commonly misidentified billfishes of management and conservation concern
Published in
BMC Genetics, December 2014
DOI 10.1186/s12863-014-0141-4
Pubmed ID
Authors

Andrea M Bernard, Mahmood S Shivji, Eric D Prince, Fabio HV Hazin, Freddy Arocha, Andres Domingo, Kevin A Feldheim

Abstract

BackgroundMisidentifications between exploited species may lead to inaccuracies in population assessments, with potentially irreversible conservation ramifications if overexploitation of either species is occurring. A notable showcase is provided by the realization that the roundscale spearfish (Tetrapturus georgii), a recently validated species, has been historically misidentified as the morphologically very similar and severely overfished white marlin (Kajikia albida) (IUCN listing: Vulnerable). In effect, no information exists on the population status and evolutionary history of the enigmatic roundscale spearfish, a large, highly vagile and broadly distributed pelagic species. We provide the first population genetic evaluation of the roundscale spearfish, utilizing nuclear microsatellite and mitochondrial DNA sequence markers. Furthermore, we re-evaluated existing white marlin mitochondrial genetic data and present our findings in a comparative context to the roundscale spearfish.ResultsMicrosatellite and mitochondrial (control region) DNA markers provided mixed evidence for roundscale spearfish population differentiation between the western north and south Atlantic regions, depending on marker-statistical analysis combination used. Mitochondrial DNA analyses provided strong signals of historical population growth for both white marlin and roundscale spearfish, but higher genetic diversity and effective female population size (1.5-1.9X) for white marlin.ConclusionsThe equivocal indications of roundscale spearfish population structure, combined with a smaller effective female population size compared to the white marlin, already a species of concern, suggests that a species-specific and precautionary management strategy recognizing two management units is prudent for this newly validated billfish.

Mendeley readers

The data shown below were compiled from readership statistics for 30 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
United States 1 3%
Unknown 29 97%

Demographic breakdown

Readers by professional status Count As %
Researcher 11 37%
Student > Ph. D. Student 6 20%
Student > Bachelor 4 13%
Student > Master 3 10%
Student > Doctoral Student 1 3%
Other 2 7%
Unknown 3 10%
Readers by discipline Count As %
Agricultural and Biological Sciences 23 77%
Biochemistry, Genetics and Molecular Biology 2 7%
Environmental Science 1 3%
Social Sciences 1 3%
Unknown 3 10%

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 05 February 2015.
All research outputs
#3,347,447
of 4,720,522 outputs
Outputs from BMC Genetics
#370
of 519 outputs
Outputs of similar age
#114,842
of 164,612 outputs
Outputs of similar age from BMC Genetics
#21
of 27 outputs
Altmetric has tracked 4,720,522 research outputs across all sources so far. This one is in the 16th percentile – i.e., 16% of other outputs scored the same or lower than it.
So far Altmetric has tracked 519 research outputs from this source. They receive a mean Attention Score of 3.2. This one is in the 17th percentile – i.e., 17% of its peers scored the same or lower than it.
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We're also able to compare this research output to 27 others from the same source and published within six weeks on either side of this one. This one is in the 14th percentile – i.e., 14% of its contemporaries scored the same or lower than it.