2009
DOI: 10.1590/s1415-47572009005000039
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Identification and phylogenetic inferences on stocks of sharks affected by the fishing industry off the Northern coast of Brazil

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… Show more

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Cited by 36 publications
(58 citation statements)
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“…acronotus were involved in a polytomy. The polytomic pattern within Carcharhinidae is probably related to the low-levels of intrinsic genetic variability of sharks (Figure 2) [47]. The results of the present study are consistent with those of other molecular phylogenies [10,13,17,24].…”
Section: Results and Discussion Of The Phylogenetic Relationshipssupporting
confidence: 90%
“…acronotus were involved in a polytomy. The polytomic pattern within Carcharhinidae is probably related to the low-levels of intrinsic genetic variability of sharks (Figure 2) [47]. The results of the present study are consistent with those of other molecular phylogenies [10,13,17,24].…”
Section: Results and Discussion Of The Phylogenetic Relationshipssupporting
confidence: 90%
“…Molecular techniques based on sequences of mitochondrial (mtDNA) or nuclear DNA have been widely used in studies of population genetics (Cruz, 2013;Pinhal, 2010;Tavares et al, 2013;Veríssimo et al, 2012;Rodrigues-Filho, et al, 2009;Dudgeon et al, 2012;Palmeira et al, 2013). The regions of the mitochondrial genome most used for these studies include the cytochrome b (Cyt b) gene and the Control Region (CR), which has been used in a large number of population genetics studies of sharks Tavares et al, 2013).…”
Section: Molecular Methods As a Tool For The Conservation Of The Elasmentioning
confidence: 99%
“…Molecular identiication is now used widely in research on elasmobranchs, based on a variety of genetic techniques [14,32,[60][61][62][63][64]. The most widely used approach, which is both simple and efective and provides a good diagnosis of most animal taxa, is DNA barcoding [12], which is based on the analysis of a small fragment of the mitochondrial Cytochrome Oxidase subunit I (COI) gene of approximately 648 nucleotides.…”
Section: Elasmobranchs and Isheriesmentioning
confidence: 99%