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| Dergam,Jorge A.; Paiva,Samuel R.; Schaeffer,Carlos E.; Godinho,Alexandre L.; Vieira,Fabio. |
| In the Rio Doce basin of southeastern Brazil, the freshwater fish Hoplias malabaricus (trahira) is a widespread predatory characin and one of the few resilient native fishes in a highly impacted lake system. In order to test for genetic differentiation in populations within this basin and for biogeographic relationships among populations of this species in other basins, a study was conducted using RAPD-PCR analysis of Rio Doce samples (N = 63) and phylogeographic analyses with mitochondrial DNA (mtDNA) haplotypes, including the Rio Grande and Macacu river basins. In the Rio Doce basin, the patterns of genetic similarity of RAPD-PCR markers (individual fingerprinting and Neis genetic distance) suggest the existence of two genetically different groups, one... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: RAPD; SSCP; MtDNA; Phylogeography; Hoplias malabaricus; Conservation genetics. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572002000400005 |
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| Barroca,Tatiana M.; Gutiérrez-Espinosa,Mónica A.; Giraldo,Alejandro; Bedore,Alessandra G.; Godinho,Alexandre L.. |
| In recent decades, Brazilian hydroelectric reservoirs have been stocked with hundreds of millions of juvenile migratory fish, but almost no research on stocking has been conducted. In order to study stocking it is essential to tag the fish to be stocked. In this investigation we determined handling-induced mortality, tag retention rate, and absolute growth rate of hatchery-reared juvenile curimbatá (Prochilodus lineatus) tagged with coded wire tags (CWT), a tag widely used on stocked fish. We injected CWT into the dorsal musculature just below the first dorsal fin ray. Despite the need for frequent tag injector maintenance, this tagging location proved to be suitable for tagging juvenile curimbatá. We found no short-term mortality of juvenile curimbatá... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Neotropical fish; Passive tag; Stocking; Tag retention; Tagging mortality. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252015000200383 |
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