Ichthyological Overview and Remarks on Freshwater Fishes from Capim River, Lower Amazon Basin, Brazil


The Capim River drainage should be considered small and thin by comparison with large Amazonian rivers. It rises by confluence of the Surubiú and Ararandeua rivers near 400 m high and their headwaters would be comfortably included in the Dry Emerged Lowland (terra firme) forest area of Sternberg’s Amazonian concept. Because of this reason the freshwater fish fauna of Capim River is comprised mainly by Amazonian fish families found in tributaries also with origin in terra firme areas. The ichthyofauna from the main channel of the poorly sampled Capim River, in the stretch between its confluence with Tauarí River and its mouth at Guamá River, is herein reported by way of rapid assessment. Also broad comparisons were made among freshwater fishes of the Capim with that from Tocantins and Guamá rivers. Two rapid access research surveys of collecting ichthyological material were performed in dry and humid periods of the year 1998 comprising the regional hydrologic cycle. The ichthyological diversity showed by the 461 studied specimens includes 79 species probably derived from Guamá and Tocantins rivers. These species are distributed between two situations: 1) downstream Capim River, at confluence with Guamá River, where is under tidal waters influence and periodically flooded, and 2) upriver Capim that is less humid and with water rapids, independent from sea hydrologic influence. This fish fauna includes local species common at high areas of the Amazonian Dry Emerged Lowland that are in part shared with that from Tocantins River. In view of these observations, we assume that the Capim River freshwater ichthyofauna may reflect diverse origin from the simple transfer of populations from Guamá River, but originate through a more complex process including the past ichthyofauna of the earlier drainages of terra firme forest and their reorganization.

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Garavello, J. and Oliveira, A. (2014) Ichthyological Overview and Remarks on Freshwater Fishes from Capim River, Lower Amazon Basin, Brazil. Open Journal of Ecology, 4, 797-806. doi: 10.4236/oje.2014.413068.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] Weitzman, S.H. and Weitzman, M. (1982) Biogeography and Evolutionary Diversification in Neotropical Freshwater Fishes, with Comments on the Refuge Theory. In: Prance, G.T., Ed., Biological Diversification in the Tropics, Columbia University Press, New York, 403-422.
[2] Da Silva, C.L. and de Fátima Rossetti, D. (2009) Historia geologica dos rios na Amazonia. Ciência e Cultura, 61, 24-26.
[3] Silva, C.L, Morales, N., Crosta, A.P., Costa, S.S. and Jimenez-Rueda, J.R. (2007) Analysis of Tectonic-Controlled Fluvial Morphology and Sedimentary Processes of the Western Amazon Basin: An Approach Using Satellite Images and Digital Elevation Model. Anais da Academia Brasileira de Ciências, 79, 693-711.
[4] Sternberg, H.O.R. (1950) Vales tectonicos na planície Amazonica? Revista Brasileira de Geografia, 12, 3-26.
[5] Raiol, R.D.O., Wosiacki, W.B. and Montag, L.F.A. (2012) Fish of the Taiassuí and Benfica River Basins, Benevides, Pará (Brazil). Check List, 8, 491-498.
[6] Barthem, R. and Goulding, M. (1997) Os Bagres Balizadores. Ecologia, Migracao e Conservacao de Peixes Amazonicos. Sociedade Civil Mamiruá, MCT, CNPq, IPAAM, 140.
[7] Goulding, M. (1980) The Fishes and the Forest. Explorations in the Amazonian Natural History. University of California Press, Oakland, 280.
[8] Garavello, J.C., Garavello, J.P. and Oliveira, A.K. (2010) Ichthyofauna, Fish Supply and Fishermen Activities at Medium Tocantins River, Maranhao State, Brazil. Brazilian Journal of Biology, 70, 575-585.
[9] Green, J. (1970) Freshwater Ecology in the Mato Grosso, Central Brazil I. The Conductivity of Some Natural Waters. Journal of Natural History, 4, 289-299. http://dx.doi.org/10.1080/00222937000770271
[10] Lowe-McConnell, R.H. (1991) Natural History of Fishes in Araguaia and Xingu Amazonian Tributaries, Serra do Ron-cador, Mato Grosso, Brazil. Ichthyological Explorations of Freshwaters, 2, 63-82.
[11] Reis, R.E., Kullander, S.O. and Ferraris Jr., C.F. (2003) Check List of the Freshwater Fishes of South and Central America. Edipucrs, Porto Alegre, 729 p.
[12] Lowe-McConnell, R.H. (1975) Fish Communities in Tropical Freshwaters. Their Distribution, Ecology and Evolution. Longman, London, 337 p.
[13] Garavello, J.C. (1979) Revisao taxonomica do gênero Leporinus Spix, 1829 (Ostariophysi, Anostomidae). Tese de doutorado, Sao Paulo University, Sao Paulo.
[14] Géry, J. (1977) Characoids of the World. TFH Publications, Neptune City, 672 p.
[15] Godoy, M.P. (1962) Marcacao, migracao e transplantacao de peixes marcados na bacia do rio Paraná Superior. Arqui-vos do Museu Nacional, 52, 105-113.
[16] Goulding, M. and Carvalho, M.L. (1982) Life History and Management of the Tambaqui (Colossoma macropomum, Characidae): An Important Amazonian Food Fish. Revista Brasileira de Zoologia, 1, 107-133.
[17] Ferreira, R.M.A. and Godinho, H.P. (1990) Reproductive Biology of the White-Piau, Schizodon knerii (Steindachner, 1875) (Anostomidae) from a Reservoir in Southeast Brazil. European Archives of Biology, 101, 331-344.
[18] Sato, Y., Fenerich-Verani, N., Nuner, A.P.O., Godinho, H.P. and Verani, J.R. (2003) Padroes reprodutivos de peixes da bacia do Sao Francisco. In: Godinho, H.P. and Godinho, A.L., Eds., águas, peixes e pescadores do Sao Francisco das Minas Gerais, PUC Minas, Belo Horizonte, 224-268.
[19] Vazzoler, A.E.A.M. (1986) Manual de métodos para estudos biologicos de populacoes de peixes: Reproducao e cres-cimento. Programa Nacional de Zoologia, Brasília, 108 p.
[20] Merona, B. (1987) Aspectos ecologicos da ictiofauna no baixo Tocantins. Acta Amazonica, 16-17, 109-124.
[21] Garavello, J.C. and Santos, G.M. (2009) Two New Leporinus Agassiz, 1829, from Araguaia-Tocantins System, Ama-zon Basin, Brazil (Ostariophysi, Anostomidae). Brazilian Journal of Biology, 69, 109-116.

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