Produção Nacional
Revisado por pares
Maturity and growth of Paralonchurus brasiliensis females in southern Brazil (Teleostei, Perciformes, Sciaenidae)
2005; Wiley; Volume: 21; Issue: 2 Linguagem: Inglês
10.1111/j.1439-0426.2004.00637.x
ISSN1439-0426
AutoresD. dos S. Lewis, Nelson Ferreira Fontoura,
Tópico(s)Marine and fisheries research
ResumoJournal of Applied IchthyologyVolume 21, Issue 2 p. 94-100 Maturity and growth of Paralonchurus brasiliensis females in southern Brazil (Teleostei, Perciformes, Sciaenidae) D. Dos S. Lewis, D. Dos S. Lewis Pós-Graduação em Zoologia, UFPA, CuritibaSearch for more papers by this authorN. F. Fontoura, N. F. Fontoura Laboratório de Dinâmica Populacional Aplicada a Ecossistemas Aquáticos, PUCRS, Porto Alegre, BrazilSearch for more papers by this author D. Dos S. Lewis, D. Dos S. Lewis Pós-Graduação em Zoologia, UFPA, CuritibaSearch for more papers by this authorN. F. Fontoura, N. F. Fontoura Laboratório de Dinâmica Populacional Aplicada a Ecossistemas Aquáticos, PUCRS, Porto Alegre, BrazilSearch for more papers by this author First published: 29 March 2005 https://doi.org/10.1111/j.1439-0426.2004.00637.xCitations: 8 Author's address: Nelson Ferreira Fontoura, Laboratório de Dinâmica, Populacional Aplicada a Ecossistemas Aquáticos, PUCRS – Av Ipiranga 6681, Porto Alegre, RS, CEP 90619-900, Brazil. E-mail: nfontoura@pucrs.br Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat Summary Samples of Paralonchurus brasiliensis Steindachner, 1875 (627 females; no males) were taken monthly from June 1997 to May 1998 at the fishing pier of Cidreira – Rio Grande do Sul (30°08′S; 50°11′W) in southern Brazil. The fish were captured by sport fishermen using different sizes of hook-and-line. The reproductive period of P. brasiliensis extends from August to March, presenting greater activity from October to February. Females reach first maturation at 15.4 cm total length (TL). Of the 466 scales analyzed, one to six annuli were found. Growth annuli are formed between June and August, corresponding to the winter period (southern hemisphere), with the first visible annulus being formed when the fish are 1.5 years old. The length growth curve for P. brasiliensis females is described as: Lt = 20.0 (1 − e−0.564×t), TL in centimeters and age in years. The undersize asymptotic length may be a result of excessive fishing mortality on the studied population. Citing Literature Volume21, Issue2April 2005Pages 94-100 RelatedInformation
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