1 Revista Brasileira de Biologia 2001 Vol: 61(1):. DOI: 10.1590/S0034-71082001000100005

Trophic morphology of five benthic-feeding fish species of a tropical floodplain

This study describes the morphology of the digestive apparatus and the size and organic content of the ingested food of five species of benthic-feeding fishes (Prochilodus lineatus, Steindachnerina insculpta, Loricariichthys platymetopon, Trachydoras paraguayensis e Iheringichthys labrosus). The samples were taken in the floodplain of the up Paraná River in February and August 1991. The results suggested that these species have different mouth, teeth, gill rakers, stomach and intestine length. These morphologic characteristics were related with the type, size and nutritional quality of the food ingested. Although these species feed on the bottom, the morphologic divergences probably explain the differences in diet.

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  1. AGOSTINHO, A. A., HAHN, N. S., GOMES, L. C. & BINI, L. M., 1997, Estrutura trófica, pp. . In: A. E. A. M. Vazzoler, A. A. Agostinho & N. S. Hahn (eds.), A planície de inundação do alto Rio Paraná: aspectos físicos, biológicos e socioeconômicos. 460p., EDUEM, Nupélia, Maringá , 229-248 .
  2. AL-HUSSAINI, A. H., 1949, On the functional morphology of the alimentary tract of some fish in relation to differences in their feeding habits: anatomy and histology. Quart. Journ. Micr. Sci., 90(2) , 109-139 .
  3. ANGELESCU, V. & GNERI, F. S., 1949, Adaptaciones del aparato digestivo al régimen alimenticio en algunos peces del Río Uruguay y Río de La Plata. Rev. Inst. Nac. Invest. Nat 1, 161-281 .
  4. BLABER, S. J. M., BREWER, D. T. & SALINI, J. P., 1994, Diet and dentition in tropical ariid catfishes from Australia. Environ. Biol. fishes 40, 159-174 .
  5. BOWEN, S. H., 1983, Detritivory in neotropical fish communities. Environ. Biol. Fishes, 9(2) , 137-144 .
  6. FRYER, G. & ILES, T. D., 1972, The cichlid fishes of the Great Lakes of Africa. Edinburg: Oliver and Boyd , .
  7. FUGI, R., HAHN, N. S. & AGOSTINHO, A. A., 1996, Feeding styles of five species of bottom-feeding fishes of the High Paraná River. Environ. Biol. Fishes 46, 297-307 .
  8. GOULDING, M., 1981, The fishes and the forest: exploration in Amazoniam Natural History. University of California Press, Berkeley, 280p , .
  9. HOOGENBOEZEM, W., BOOGAART, J. G. M., SIBBING, F. A., LAMMENS, E. H. R., TERLOUW, A. & OSSE, J. W. M., 1991, A new model of particle retention and branchial sieve adjustment in filter-feeding bream (Abramis brama, Cyprinidae). Can. J. Fish. Aquat. Sci., 48(1) , 7-18 .
  10. HUITEMA, B. E., 1980, The analysis of covariance and alternatives. John Wiley & Sons, New York, 445p , .
  11. JUNGER, H., KOTRSCHOR, K. & GOLDCHMID, A., 1989, Comparative morphology and ecomorphology of the gut in European cyprinids. J. Fish Biol 34, 315-326 .
  12. KEENLEYSIDE, M. H. A., 1975, Feeding behavior, pp. . In: W. S. Hoar, B. Hoelldobler, K. Johansen, H. Langer & M. Lindauer (eds.), Diversity and adaptation in fish behaviour. Springer-Verlag, Berlim , 17-43 .
  13. LAGLER, K. F., BARDACH, J. E., MILLER, R. R. & PASSINO, D. R., 1977, Ichthyology. John Wiley & Sons, New Jersey, 506p , .
  14. LAMMENS, E. H. R. & HOOGENBOEZEM, W., 1991, Diets and feeding behaviour, pp. . In: I. J. Wintified & J. Nelson (eds.), Cyprinid fishes systematics, biology and exploitation. London, Chapman and Hall , 353-376 .
  15. ODUM, H. E., 1968, The ecological significance of fine particle selection by striped mullet Mugil cephalus. Limnol. Oceanogr 13, 92-97 .
  16. PY-DANIEL, L. H. R., 1984, Sistemática dos Loricariidae (Ostariophysi, Siluroidei) do complexo de lagos do Janauacá, Amazonas, e aspectos de sua bilogia e ecologia. Master Thesis, Instituto Nacional da Amazônia, Fundação Universidade do Amazonas, 278p , .
  17. SAZIMA, I. & CARAMASCHI, E. P., 1989, Comportamento alimentar de duas espécies de Curimata, sintópicas no Pantanal de Mato Grosso (Osteichthyes, Characiformes). Rev. Brasil. Biol., 49(2) , 325-333 .
  18. SILVA, J. M., HERNANDEZ-BLAZQUEZ, F. J. & JULIO-JR., H. F., 1997, A new accessory respiratory organ in fishs: morphology of the respiratory purses of Loricariithys platymetopon (Pisces, Loricariidae). Annales des Sciences Naturelles, Zoologie, Paris, 18(3) , 93-103 .
  19. SUYEHIRO, Y., 1942, A study on the digestive system and feeding habits of fish. Jap. J. Zool 10, 1-303 .
  20. THOMAZ, S. M., ROBERTO, M. C. & BINI, L. M., 1997, Caracterização limnológica dos ambientes aquáticos e influência dos níveis fluviométricos, pp. . In: A. E. A. M. Vazzoler, A. A. Agostinho & N. S. Hahn (eds.), A planície de inundação do alto Rio Paraná: aspectos físicos, biológicos e socioeconômicos, 460p. EDUEM, Nupélia, Maringá , 73-102 .
  21. VEREGINA, I. A., 1990, Basic adaptations of the digestive system in bony fishes as a function of diet. J. Ichthyology, 30(6) , 897-907 .
  22. WOOTTON, R. J., 1990, Ecology of teleost fishes. Chapman & Hall, London, 404p , .
  23. ZAR, J. H., 1996, Biostatistical analyses. Printice Hall, New Jersey, 662p , .