Acessibilidade / Reportar erro

Some aspects of the ecology of fish larvae in the floodplain of the high Paraná river, Brazil

Abstract

The spatial and temporal distribution and nychthemeral variation of fish larvae in six stations (Ivinhema, Patos, Paraná, Cortado, Baía and Guaraná) in the floodplain of the high Paraná river are provided. The paper also provides the relationship of this distribution to some environmental factors. From March 1992 to February 1993 ichthyoplanktonic samples were collected by conic cylindrical nets, with 0.5mm of mesh size and fluxometer attached, in 10-minute hauls at the surface and bottom during nychthemeral cycles. At the same time water samples were taken to determine environmental factors. During the above period 5,672 larvae were collected: 57,6% from Cortado station and 13,2% from Ivinhema and Paraná stations. The greatest densities were recorded between October and February, chiefly at night at the surface and by day at the bottom.

Fish larvae; ecology; distribution; floodplain; Paraná river


Some aspects of the ecology of fish larvae in the floodplain of the high Paraná river, Brazil

Gilmar Baumgartner; Keshiyu Nakatani; Maristela Cavicchioli; Maria do Socorro Tenório Baumgartner

Departamento de Biologia, Nupélia, Universidade Estadual de Maringá. Avenida Colombo 5790, 87020-900 Maringá, Paraná, Brasil

ABSTRACT

The spatial and temporal distribution and nychthemeral variation of fish larvae in six stations (Ivinhema, Patos, Paraná, Cortado, Baía and Guaraná) in the floodplain of the high Paraná river are provided. The paper also provides the relationship of this distribution to some environmental factors. From March 1992 to February 1993 ichthyoplanktonic samples were collected by conic cylindrical nets, with 0.5mm of mesh size and fluxometer attached, in 10-minute hauls at the surface and bottom during nychthemeral cycles. At the same time water samples were taken to determine environmental factors. During the above period 5,672 larvae were collected: 57,6% from Cortado station and 13,2% from Ivinhema and Paraná stations. The greatest densities were recorded between October and February, chiefly at night at the surface and by day at the bottom.

Key words: Fish larvae, ecology, distribution, floodplain, Paraná river

Full text available only in PDF format.

Texto completo disponível apenas em PDF.

ACKNOWLEDGEMENTS. The authors would like to thank the Núcleo de Pesquisas em Limnologia, Ictiologia e Aquicultura (Nupélia) for the help given during the collecting period and to PADCT/CIAMB for the necessary financial suport, to Msc. Cláudia Costa Bonecker and Luiz Carlos Gomes for their help in data analysis.

Recebido em 29.VI.1996; aceito em 29.VIII.1997.

  • Bergerhouse, D.L. 1992. Lethal effects of elevated pH and ammonia on early life stages of walleye. North Amer. Jour. Fish. Manag. 12:356-366.
  • Carvalho J.L. & B. Merona. 1986. Estudos sobre dois peixes migratórios do baixo Tocantins, antes do fechamento da barragem de Tucurui. Amazoniana 9 (4):595-607.
  • Cordiviola de Yuan, E. 1992. Fish populations of lentic environments of the Paraná River. Hydrobiologia 237:159-173.
  • Dioni, W. & J.L. Reartes. 1975. Susceptibilidad de algunos peces del Paraná medio expuetos a temperaturas extremas en condiciones de campo e laboratorio. Physis 34 (89):129-137.
  • Esteves, F. A. 1988. Fundamentos de Limnologia. Rio de Janeiro. Interciência/Finep. 575p.
  • Giamas, M.T.D.; L.E. Santos; II. Vermulm Jr. & J.N. Souza. 1988. Correlação da fluviometria e de alguns fatores climáticos sobre a produção pesqueira de Anchoviella lepidentostole (Fowler, 1911) (Teleostei, Engraulidade), no rio Ribeira de Iguape, São Paulo, Brasil. Revta bras. Zool. 4 (4):251-258.
  • Golterman, H.L.; R.S. Clymo & M.A.M. Ohmstad. 1978. Methods for physical and chemical analyses of fresh waters. Oxford, Blackwell Scientific Publication, XVI+214p.
  • Godoy, M.P. 1954. Locais de desovas de peixes num trecho do rio Mogi-Guaçu, Estado de São Paulo, Brasil. Rev. Brasil. Biol. 4 (4):375-386.
  • ______. 1975. Peixes do Brasil - Sub ordem Characoidei. Bacia do rio Mogi Guassu. Piracicaba, Ed. Franciscana, Vol. 4, 848p.
  • Junk, W.J. 1980. Áreas inundáveis -um desafío para a limnologia. Acta Amazônica 10 (4):775-795.
  • Korwin-Kossakonski, M. 1988. Larval development of carp, Cyprinus carpio L., in acidic water. Jour. Fish Biol. 32:17-26.
  • Lansac-Tôha, F.A.; S.M. Thomaz; A.F. Lima; M.C. Roberto & A.P.P. Garcia. 1995. Vertical Distribution of Some Planktonic Crustaceans in a "Várzea" Lake (Lake Pousada das Garças) of the Floodplain of High River Parana, MS, Brazil. Int. Jour. Ecol. Env. Sci. 21:67-78.
  • Lee, C.S. & F. HU. 1983. Influences of Ca and Mg ions on the egg survival of grey mullet, Mugil cephalus L. Jour. Fish Biol. 22:15-20.
  • Manly, B.F.J. 1995. Multivariate statistical methods - a primer. London, Chapman & Hall, XII+159p.
  • Matsuura, Y. 1977. A study of the life History of brasilian sardine, Sardinella brasiliensis. IV. Distribution and abundance of sardine larvae. Bolm. Inst. oceanogr. 26:219-247.
  • Nakatani, K.; J.D. Latini; G. Baumgartner & M.S.T. Baumgartner. 1993. Distribuição espacial e temporal das larvas de curvina Plagioscion squamosissimus (Meckel, 1840) (Ostciehthyes, Scianidae), no reservatório de Itaipu. Unimar 15:191-203.
  • Nikolski, G.V. 1963. The ecology of fishes. London, Academic Press, XV+352p.
  • Oldani, N.O.; J.M. Iwaszkim; O.H. Pandin & A. Otaegui. 1992. Flutuaciones de la abundancia de peces en el Alto Paraná (Corrientes, Argentina). Publ. Comis. Rio Uruguay 1:43-55.
  • Snyder, D.E. 1983. Fish eggs and larvae, p. 165-197. In: L.A. Nielsen & D.L. Johnson (Eds). Fisheries technique. Bethesda, American Fisheries Society, Vol. 9.
  • Tanaka, S. 1973. Stock assesment by means of ichtyoplankton surveys. FAO Fish Tech. Pap. 122:33-51.
  • Thomaz, S.M.; M.C. Roberto; F.A. Esteves; F.A. Lansac-Tôha & A.F. Lima. 1992. Influência do regime hidrológico do rio Paraná sobre os valores da transparência, oxigênio dissolvido e clorofila-a de três lagoas de sua várzea. Unimar 14 (Supl.):153-162.
  • Vazzoler, A.E.A.M. 1996. Biologia da reprodução de peixes teleósteos: teoria e prática. Maringá, EDUEM, XVII+169p.

Publication Dates

  • Publication in this collection
    10 July 2009
  • Date of issue
    Sept 1997

History

  • Accepted
    29 Aug 1997
  • Received
    29 June 1996
Sociedade Brasileira de Zoologia Caixa Postal 19020, 81531-980 Curitiba PR Brasil, Tel./Fax: +55 41 3266-6823, - Curitiba - PR - Brazil
E-mail: sbz@bio.ufpr.br