A journey through the Rio Sucuri (with narration) in Mato Grosso do Sul, Brazil.

Footage shows the habitat of the clear water karst stream of the Rio Sucuri, in the Bodoquena highlands of Mato Grosso do Sul, Brazil. The first few km of the river are clear, having emerged from its source spring nearby and has not yet had time to become turbid from detritus and sediment. The clear waters permit plenty of sunlight penetration which in turn leads to dense aquatic vegetation.

Plant species found here include:
Acrosticum danaeifolium
Bacopa australis
Chara rusbyana
Echinodorus cordifolius
Echinodorus grandiflorus
Echinodorus macrophyllus
Gomphrena elegans
Helanthium bolivianum (used to be known as Echinodorus bolivianus)
Hydrocotyle verticillata (described in literature concerning this river as H. leucocephala but I'm sure that it's H. verticillata)
Ludwigia peruviana
Myriophyllum aquaticum
Nymphaea jamesoniana
Nymphaea gardneriana Planch
Potamogeton illinoensis
Polygonum acuminatum
Polygonum hydropiperoides
Pontederia parviflora

Fish species appearing in this video:

Characidium laterale (Boulenger 1895)
Characidium zebra Eigenmann 1909
Leporinus friderici (Bloch, 1794)
Steindachnerina brevipinna (Eigenmann & Eigenmann, 1889)
Prochilodus lineatus (Valenciennes, 1837)
Bryconops melanurus (Bloch, 1794)
Acestrorhynchus pantaneiro Menezes, 1992
Astyanax lacustris (Lütken, 1875)
Hoplerythrinus unitaeniatus (Spix & Agassiz 1829)
Hemigrammus tridens Eigenmann 1907
Hyphessobrycon eques (Steindachner, 1882)
Jupiaba acanthogaster (Eigenmann, 1911)
Moenkhausia bonita Benine, Castro & Sabino, 2004
Moenkhausia dichroura (Kner 1858)
Moenkhausia forestii Benine, Mariguela & Oliveira, 2009
Moenkhausia oligolepis (Günther, 1864)
Phenacogaster tegatus (Eigenmann, 1911)
Brycon hilarii (Valenciennes, 1850)
Salminus brasiliensis (Cuvier, 1816)
Crenicichla lepidota Heckel, 1840