2016
DOI: 10.1590/1982-0224-20150139
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Abstract: Monitoring of the interspecific hybrid production and trade is essential for the appropriate management of these animals in fish farms. The identification of catfish hybrids by morphological analysis is unreliable, particularly of juveniles and post-F1 individuals. Therefore, in the present study, we used five molecular markers (four nuclear genes and one mitochondrial gene) to detect hybrids in the trade of pimelodid juvenile fish from different stocks purchased of five seed producers in Brazil. Samples comme… Show more

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Cited by 17 publications
(16 citation statements)
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“…The confirmation and validation of R. branneri and R. voulezi, based on both morphological characters (Garavello, Shibatta, 2016) and molecular data, contribute to the conservation of the genetic resources of these species, preventing genetic contamination for the production of unintended hybrids. According to Hashimoto et al, (2016), the negative impacts resultant from the erroneous use of hybrids in the genetic integrity of wild pure species are not considered by fish farmers. Problems related to wild populations produced for inappropriate crosses can also be damaging to aquaculture activity (Belle, Nash, 2009).…”
Section: Discussionmentioning
confidence: 99%
“…The confirmation and validation of R. branneri and R. voulezi, based on both morphological characters (Garavello, Shibatta, 2016) and molecular data, contribute to the conservation of the genetic resources of these species, preventing genetic contamination for the production of unintended hybrids. According to Hashimoto et al, (2016), the negative impacts resultant from the erroneous use of hybrids in the genetic integrity of wild pure species are not considered by fish farmers. Problems related to wild populations produced for inappropriate crosses can also be damaging to aquaculture activity (Belle, Nash, 2009).…”
Section: Discussionmentioning
confidence: 99%
“…It is well known that different species and even different strains of the same species require different biological conditions or management practices in aquaculture. These needs have favoured the indiscriminate production of interspecific crosses in the cultivation of freshwater fish and threaten the genetic integrity of cultivated and wild populations (Allendorf, Hohenlohe & Luikart, ; Hashimoto, Prado, Foresti & Porto‐Foresti, ; Hashimoto, Prado, Senhorini, Foresti & Porto‐Foresti, ; Hashimoto et al., ). The difficulties associated with the identification and separation of different lineages of a species or even different species that are morphologically similar and used in aquaculture have favoured the production and cultivation of such fish as a single species (Hashimoto, Senhorini, Foresti, Martínez & Porto‐Foresti, ).…”
Section: Introductionmentioning
confidence: 99%
“…In recent years, Brazilian aquaculture has had a large increase in the production of hybrid species, resulting from the interspecific and intergenus crosses (Hashimoto et al, 2016). Fish generated by crosses between different species can contaminate natural populations and constitute a significant threat to native wildlife (Agostinho et al, 2007;Hashimoto et al, 2016).…”
Section: Ecological Interactionsmentioning
confidence: 99%
“…In recent years, Brazilian aquaculture has had a large increase in the production of hybrid species, resulting from the interspecific and intergenus crosses (Hashimoto et al, 2016). Fish generated by crosses between different species can contaminate natural populations and constitute a significant threat to native wildlife (Agostinho et al, 2007;Hashimoto et al, 2016). Studies have shown that hybrid species may be fertile, and when these species escape, they can breed with native fish, contaminating the genetic diversity of wild populations (Hashimoto et al, 2011;Prado et al, 2012).…”
Section: Ecological Interactionsmentioning
confidence: 99%