Data/hora: 01/06/2024 01:04:15

Provedor de dados: | 83
País: | Brazil
Título: | Fish movement in an Atlantic Forest stream
Autores: | Mazzoni,Rosana; Pinto,Miriam Plaza; Iglesias-Rios,Ricardo; Costa,Raquel.
Data: | 2018-01-01
Ano: | 2018
Palavras-chave: | Coastal stream; Migration; Reproduction; Stream dwelling fish.
Resumo: | ABSTRACT Given the importance of fish movement to the dynamics and maintenance of stream dwelling fish communities from the Atlantic Forest, we analysed patterns of fish movement in a coastal stream from Southeastern Brazil, using mark-recapture technique. Displacement distance of each species were presented and discussed considering seasonal (rainy and dry) and body size patterns. We marked 10 species along the stream and recaptured 440 (34.6%) of the 1,270 marked fishes. The species with significant number of upstream moving individuals were Astyanax janeiroensis, Characidium interruptum, Astyanax hastatus, Parotocinclus maculicauda and Awaous tajasica. Only Pimelodella lateristriga presented significant differences between resident and moving individuals. Characidium interruptum and A. tajasica demonstrated greater downstream and upstream movement, respectively, moving up to 2,100 m. Even after controlling for species identity we found no significant correlation between fish length and individual displacement distance. Fishes moved longer distances during the rainy season, in accordance to the breeding season. Patterns of fish movement were in agreement to life-history traits of many of the studied species and can be reflecting specific behaviour and morphologies.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252018000100206
Editor: | Sociedade Brasileira de Ictiologia
Relação: | 10.1590/1982-0224-20170065
Formato: | text/html
Fonte: | Neotropical Ichthyology  v.16 n.1 2018
Fonte: | info:eu-repo/semantics/openAccess