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da Silva Rodrigues-Filho LF, da Rocha TC, do Rêgo PS, et al. Identification and phylogenetic inferences on stocks of sharks affected by the fishing industry off the Northern coast of Brazil. Genet Mol Biol. 2009;32(2):405-13doi: 10.1590/S1415-47572009005000039.
da Silva Rodrigues-Filho, L. F., da Rocha, T. C., do Rêgo, P. S., Schneider, H., Sampaio, I., & Vallinoto, M. (2009). Identification and phylogenetic inferences on stocks of sharks affected by the fishing industry off the Northern coast of Brazil. Genetics and molecular biology, 32(2), 405-13. https://doi.org/10.1590/S1415-47572009005000039
da Silva Rodrigues-Filho, Luis Fernando, et al. "Identification and phylogenetic inferences on stocks of sharks affected by the fishing industry off the Northern coast of Brazil." Genetics and molecular biology vol. 32,2 (2009): 405-13. doi: https://doi.org/10.1590/S1415-47572009005000039
da Silva Rodrigues-Filho LF, da Rocha TC, do Rêgo PS, Schneider H, Sampaio I, Vallinoto M. Identification and phylogenetic inferences on stocks of sharks affected by the fishing industry off the Northern coast of Brazil. Genet Mol Biol. 2009 Apr;32(2):405-13. doi: 10.1590/S1415-47572009005000039. Epub 2009 May 01. PMID: 21637699; PMCID: PMC3036939.
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Genet Mol Biol. 2009 Apr;32(2):405-13. doi: 10.1590/S1415-47572009005000039. Epub 2009 May 01.

Identification and phylogenetic inferences on stocks of sharks affected by the fishing industry off the Northern coast of Brazil.

Genetics and molecular biology

Luis Fernando da Silva Rodrigues-Filho, Tainá Carreira da Rocha, Péricles Sena do Rêgo, Horacio Schneider, Iracilda Sampaio, Marcelo Vallinoto

Affiliations

  1. Laboratório de Genética e Biologia Molecular, Instituto de Estudos Costeiros, Universidade Federal do Pará, Bragança, PA Brazil.

PMID: 21637699 PMCID: PMC3036939 DOI: 10.1590/S1415-47572009005000039

Abstract

The ongoing decline in abundance and diversity of shark stocks, primarily due to uncontrolled fishery exploitation, is a worldwide problem. An additional problem for the development of conservation and management programmes is the identification of species diversity within a given area, given the morphological similarities among shark species, and the typical disembarkation of processed carcasses which are almost impossible to differentiate. The main aim of the present study was to identify those shark species being exploited off northern Brazil, by using the 12S-16S molecular marker. For this, DNA sequences were obtained from 122 specimens collected on the docks and the fish market in Bragança, in the Brazilian state of Pará. We identified at least 11 species. Three-quarters of the specimens collected were either Carcharhinus porosus or Rhizoprionodon sp, while a notable absence was the daggernose shark, Isogomphodon oxyrhyncus, previously one of the most common species in local catches. The study emphasises the value of molecular techniques for the identification of cryptic shark species, and the potential of the 12S-16S marker as a tool for phylogenetic inferences in a study of elasmobranchs.

Keywords: sharks; conservation; molecular identification; mtDNA; phylogenetic

References

  1. Mol Phylogenet Evol. 2005 Mar;34(3):569-83 - PubMed
  2. Science. 2003 Jan 17;299(5605):389-92 - PubMed
  3. Mar Biotechnol (NY). 2001 May;3(3):231-40 - PubMed
  4. Science. 2007 Mar 30;315(5820):1846-50 - PubMed
  5. Conserv Biol. 2006 Feb;20(1):201-11 - PubMed
  6. Mol Phylogenet Evol. 2003 Feb;26(2):215-21 - PubMed
  7. Ecol Lett. 2006 Oct;9(10):1115-26 - PubMed
  8. Bioinformatics. 2003 Aug 12;19(12):1572-4 - PubMed
  9. Proc Natl Acad Sci U S A. 1977 Dec;74(12):5463-7 - PubMed
  10. Nucleic Acids Res. 1997 Dec 15;25(24):4876-82 - PubMed
  11. J Hered. 2001 Jul-Aug;92(4):371-3 - PubMed

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