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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Genetic evidences of non-reproductive shoaling in the freshwater fish Salminus brasiliensis

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Ribolli, Josiane [1, 2, 3] ; Zaniboni-Filho, Evoy [2] ; Freitas, Patricia D. [1] ; Galetti, Jr., Pedro M. [1]
Total Authors: 4
[1] Univ Fed Sao Carlos, Lab Biodiversidade Mol & Conservacao, Dept Genet & Evolucao, Rodovia Washington Luis Km 235, BR-13565905 Sao Carlos, SP - Brazil
[2] Univ Fed Santa Catarina, Lab Biol & Cult Peixes Agua Doce, Dept Aquicultura, Rodovia SC 406, 3532 Lagoa do Peri, Florianopolis, SC - Brazil
[3] Univ Fed Sao Carlos, Programa Posgrad Ecol & Recursos Nat, Rodovia Washington Luis Km 235, BR-13565905 Sao Carlos, SP - Brazil
Total Affiliations: 3
Document type: Journal article
Source: Hydrobiologia; v. 815, n. 1, p. 65-72, JUN 2018.
Web of Science Citations: 2

Recent studies have identified patterns of genetic organization during schooling in the reproductive period of several Neotropical freshwater migratory fish. However, population segregation during non-reproductive periods is still unknown for most species. In this study, we investigated the genetic structure of populations of Salminus brasiliensis, a high-value large migratory freshwater fish, sampled during the non-reproductive season. We analysed 89 adults from Uruguay River Basin (Brazil) collected during the two consecutive non-reproductive periods, and assessed the genetic diversity levels using eleven microsatellite loci. Our results showed that populations are genetically structured, suggesting these fish can remain grouped likely due to a cooperative behaviour, not related to reproduction, in a typical shoaling behaviour. Besides, we found high genetic diversity for S. brasiliensis from the Turvo State Park area, highlighting the importance of this conservation unit as a relevant area for maintaining the genetic variability of S. brasiliensis in the Uruguay River. (AU)

FAPESP's process: 10/52315-7 - Top predators of food chain
Grantee:Pedro Manoel Galetti Junior
Support type: BIOTA-FAPESP Program - Regular Research Grants