Data/hora: 08/06/2024 16:49:44

Provedor de dados: | 83
País: | Brazil
Título: | The use of morphometric analysis to predict the swimming efficiency of two Neotropical long-distance migratory species in fish passage
Autores: | Assumpção,Lucileine de; Makrakis,Maristela Cavicchioli; Makrakis,Sergio; Wagner,Ricardo Luiz; Silva,Patrícia Sarai da; Lima,Ariane Furtado de; Kashiwaqui,Elaine Antoniassi Luiz.
Data: | 2012-10-01
Ano: | 2012
Palavras-chave: | Fineness ratio; Fish swimming; Fishway; Morphology; Swimming performance.
Resumo: | This study investigated the external body morphology (based on morphometric data) and the swimming efficiency in fish passages (based on the ascent time in a fish ladder) of two Neotropical long-distance migratory species. The fish were collected in the fish ladder of the Porto Primavera Hydroelectric Power Plant (known as Engenheiro Sergio Motta), upper Paraná River, Brazil. The species differ in several morphometric ratios related to swimming performance. Prochilodus lineatus exhibited a higher muscle ratio and caudal fin length ratio. However, Leporinus elongatus showed higher values for the fineness ratio, a higher length from snout to pectoral fin base ratio, and a higher caudal peduncle depth factor. Although both species show good swimming performance, the characteristics listed above may enable L. elongatus to apply greater power and propulsion, allowing it to reach a high swimming speed and to exhibit greater efficiency than P. lineatus. Leporinus elongatus moves faster than P. lineatus and has a lower mean ascent time (1.39 hours) than P. lineatus (3.76 hours). Prochilodus lineatus would require a somewhat longer time to pass through the fish ladder.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252012000400012
Editor: | Sociedade Brasileira de Ictiologia
Relação: | 10.1590/S1679-62252012000400012
Formato: | text/html
Fonte: | Neotropical Ichthyology  v.10 n.4 2012
Fonte: | info:eu-repo/semantics/openAccess