Idade e crescimento de Gymnogeophagus lacustris Reis &amp; Malabarba, um Cichlidae endêmico da bacia hidrográfica do Rio Tramandaí, Rio Grande do Sul, Brasil

Hartz, Sandra Maria; Bruschi Junior, Willi; Formehl, Márcio Vanini

doi:10.1590/S0101-81751998000300005

Resumo

In the present study it was examined the age and growth of Gymnogeophagus lacustris Reis & Malabarba, 1988 in Caconde lagoon (Tramandaí River Basin). The specimens (1080 males and 267 females) were collected monthly, between July 1992 and June 1993. The growth curve in total length was obtained by von Bettalanffy expression and the weight curve through the dedutive method supported by the mathematical expressions of the length growth curve and the length/weight relationship. Formation of the annulli in scales ocurred between winter and spring, and the first anual ring appears when the animals are aproximately 1.5 years old. L∞ and W∞ obtained for males and females, were 206.6mm and 157.3g and 120.2mm and 30.2g, respectively, demonstrating a characteristic sexual dimorfism for the species.

Gymnogeophagus; growth; coastal lagoon; Rio Grande do Sul; Brazil

Idade e crescimento de Gymnogeophagus lacustris Reis & Malabarba, um Cichlidae endêmico da bacia hidrográfica do Rio Tramandaí, Rio Grande do Sul, Brasil

Age and growth of Gymnogeophagus lacustris Reis & Malabarba, an endemic cichlidae of Tramandaí river basin (Rio Grande do Sul, Brazil)

Sandra Maria Hartz^I; Willi Bruschi Junior^I; Márcio Vanini Formehl^I,II

^ICentro de Ecologia, Universidade Federal do Rio Grande do Sul. Caixa Postal 15.007, 91.501-970 Porto Alegre, Rio Grande do Sul. E-mail: hartzsm@ecologia.ufrgs.br

^IIBolsista de Iniciação Científica do Programa PIBIC/CNPq/UFRGS

ABSTRACT

In the present study it was examined the age and growth of Gymnogeophagus lacustris Reis & Malabarba, 1988 in Caconde lagoon (Tramandaí River Basin). The specimens (1080 males and 267 females) were collected monthly, between July 1992 and June 1993. The growth curve in total length was obtained by von Bettalanffy expression and the weight curve through the dedutive method supported by the mathematical expressions of the length growth curve and the length/weight relationship. Formation of the annulli in scales ocurred between winter and spring, and the first anual ring appears when the animals are aproximately 1.5 years old. L∞ and W∞ obtained for males and females, were 206.6mm and 157.3g and 120.2mm and 30.2g, respectively, demonstrating a characteristic sexual dimorfism for the species.

Key words:Gymnogeophagus, growth, coastal lagoon, Rio Grande do Sul, Brazil.

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Recebido em 17.IV.1997; aceito em 24.VII.1998.

Referências bibliográficas

BARBIERI, G.; J.A. PEREIRA & F.J.C. BRANCO COSTA. 1980. Crescimento de Geophagus brasiliensis (Quoy & Gaimard, 1824) (Pisces, Cichlidae) pelo método do retrocálculo. B. Núcl. Est.-s. Ci-s. Mar., Maceió, 4:9-32.
BARBIERI, G.; M.C. BARBIERI; M.A. MARINS; J.R. VERANI; A.C. PERET & J.A. PEREIRA. 1986. Crecimiento de Tilapia rendalli (Boulenger, 1896) en el embalse del Monjolinho, São Carlos, Estado de São Paulo, Brasil. Rev. Lat. Acui., Lima, 27:18-28.
BERTALANFFY, L. VON. 1938. A quantitative theory of organic growth. Human Biol., Berlin, 10 (2):181-213.
LE CREN, E.D. 1951. The length-weight relationship and seasonal cycle in gonad weight and condition in the perch (Perca fluviatilis). Jour. Anim. Ecol., Oxford, 20:201-209.
LIZAMA, M. de L. A. & A.E.A. de M. VAZZOLER. 1993. Crescimento em peixes do Brasil: uma síntese comentada. Revista Unimar, Maringá, 15 (Supl.):141-173.
LOBÓN-CERVIÁ, I; C.G. UTRILLA; E. QUEIROL & M.A. PUIG. 1993. Population ecology of pike-cichlid, Crenicichla lepidota, in two streams of the Brazilian Pampa subject to a severa drought. Jour. Fish Biol., London, 43:537-557.
MALABARBA, L.R. & E.A. ISAIA. 1992. The fresh-water fish fauna of the Rio Tramandaí Drainage, Rio Grande do Sul, Brazil, with a discussion of its historical origin. Comun. Mus. Ciênc. PUCRS, sér. zool., Porto Alegre, 5 (12):197-223.
NOMURA, H. & J.M. BARBOSA. 1980. Biologia do acará-cascudo, Cichlasoma bimaculatum (L., 1758) do Riacho Bem Posta (Campo Maior, Piauí) (Ostei-chthyes, Cichlidae). Rev. Brasil. Biol., Rio de Janeiro, 40 (1):159-163.
ODULEYE, S.O. 1982. Growth and growth regulation in the cichlids. Aquaculture, Amsterdan, 27 (3):301-306.
PAIVA, P. de; J.R. VERANI; C.S.R. MAINARDES-PINTO & Y.A. TABATA. 1988. Studies on the growth and reproduction in the cichlid Oreochromis niloticus (Linnaeus, 1757) in a earthern pond. Bol. Inst. Pesca, São Paulo, 15 (2):109-114.
REIS, R. & L.R. MALABARBA. 1988. Revision of the Neotropical Cichlid Genus Gymnogeophagus, Ribeiro, 1918, with descriptions of two new species (Pisces, Perciformes). Revta bras. Zool, São Paulo, 4 (4):259-305.
SANTOS, E.P. dos. 1978. Dinâmica de populações aplicada à pesca e piscicultura. São Paulo, Hucitec-Edusp, 129p.
WALFORD, L.A. 1946. A new graphic method of describing the growth of animals. Biol. Bull. mar. Biol. Lab., Woods Hole, 90 (1):141-147.

Datas de Publicação

Publicação nesta coleção
10 Jul 2009
Data do Fascículo
1998

Histórico

Aceito
24 Jul 1998
Recebido
17 Abr 1997

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

[1] BARBIERI, G.; J.A. PEREIRA & F.J.C. BRANCO COSTA. 1980. Crescimento de Geophagus brasiliensis (Quoy & Gaimard, 1824) (Pisces, Cichlidae) pelo método do retrocálculo. B. Núcl. Est.-s. Ci-s. Mar., Maceió, 4:9-32.

[2] BARBIERI, G.; M.C. BARBIERI; M.A. MARINS; J.R. VERANI; A.C. PERET & J.A. PEREIRA. 1986. Crecimiento de Tilapia rendalli (Boulenger, 1896) en el embalse del Monjolinho, São Carlos, Estado de São Paulo, Brasil. Rev. Lat. Acui., Lima, 27:18-28.

[3] BERTALANFFY, L. VON. 1938. A quantitative theory of organic growth. Human Biol., Berlin, 10 (2):181-213.

[4] LE CREN, E.D. 1951. The length-weight relationship and seasonal cycle in gonad weight and condition in the perch (Perca fluviatilis). Jour. Anim. Ecol., Oxford, 20:201-209.

[5] LIZAMA, M. de L. A. & A.E.A. de M. VAZZOLER. 1993. Crescimento em peixes do Brasil: uma síntese comentada. Revista Unimar, Maringá, 15 (Supl.):141-173.

[6] LOBÓN-CERVIÁ, I; C.G. UTRILLA; E. QUEIROL & M.A. PUIG. 1993. Population ecology of pike-cichlid, Crenicichla lepidota, in two streams of the Brazilian Pampa subject to a severa drought. Jour. Fish Biol., London, 43:537-557.

[7] MALABARBA, L.R. & E.A. ISAIA. 1992. The fresh-water fish fauna of the Rio Tramandaí Drainage, Rio Grande do Sul, Brazil, with a discussion of its historical origin. Comun. Mus. Ciênc. PUCRS, sér. zool., Porto Alegre, 5 (12):197-223.

[8] NOMURA, H. & J.M. BARBOSA. 1980. Biologia do acará-cascudo, Cichlasoma bimaculatum (L., 1758) do Riacho Bem Posta (Campo Maior, Piauí) (Ostei-chthyes, Cichlidae). Rev. Brasil. Biol., Rio de Janeiro, 40 (1):159-163.

[9] ODULEYE, S.O. 1982. Growth and growth regulation in the cichlids. Aquaculture, Amsterdan, 27 (3):301-306.

[10] PAIVA, P. de; J.R. VERANI; C.S.R. MAINARDES-PINTO & Y.A. TABATA. 1988. Studies on the growth and reproduction in the cichlid Oreochromis niloticus (Linnaeus, 1757) in a earthern pond. Bol. Inst. Pesca, São Paulo, 15 (2):109-114.

[11] REIS, R. & L.R. MALABARBA. 1988. Revision of the Neotropical Cichlid Genus Gymnogeophagus, Ribeiro, 1918, with descriptions of two new species (Pisces, Perciformes). Revta bras. Zool, São Paulo, 4 (4):259-305.

[12] SANTOS, E.P. dos. 1978. Dinâmica de populações aplicada à pesca e piscicultura. São Paulo, Hucitec-Edusp, 129p.

[13] WALFORD, L.A. 1946. A new graphic method of describing the growth of animals. Biol. Bull. mar. Biol. Lab., Woods Hole, 90 (1):141-147.

Idade e crescimento de Gymnogeophagus lacustris Reis & Malabarba, um Cichlidae endêmico da bacia hidrográfica do Rio Tramandaí, Rio Grande do Sul, Brasil

Age and growth of Gymnogeophagus lacustris Reis & Malabarba, an endemic cichlidae of Tramandaí river basin (Rio Grande do Sul, Brazil)

Resumo

Referências bibliográficas

Datas de Publicação

Histórico