Journal Article

Natural history of Stauroglanis gouldingi (Siluriformes: Trichomycteridae), a miniature sand-dwelling candiru from central Amazonian streamlets

Zuanon, J. and Sazima, I.

Record Number:
1899
Year:
2004
Journal:
Ichthyological Explorations of Freshwaters
Pages:
201-208
Volume:
15
Abstract:
The natural history of Stauroglanis gouldingi, a sarcoglanidine trichomycterid so far known from the original description, is reported here based on observations of specimens inhabiting a forest streamlet of the Rio Negro drainage in central Amazonia. During the day S. gouldingi is found on patches of loose sand where the water flow forms ephemeral sand ripples. This species is a mostly visually oriented microcarnivore, foraging on immature aquatic insects. One foraging tactic of the species is movement along the ripple grooves while scanning the bottom back and forth, alternating between adjacent grooves. Feeding activity peaks at late morning and afternoon. When disturbed S. gouldingi buries in the sand, and at night it remains completely buried. Seasonal reproduction was indicated by 13 mature females caught in the wet months, whereas no reproductive individuals were found in the dry months. The expansion of unpaved roads and/or removal of riparian vegetation degrade forest stream dynamics and the ephemeral microhabitat of S. gouldingi, which may result in its local extirpation.
Times Cited:
1
Relevent Species:
Stauroglanis gouldingi de Pinna 1989
Related Records:
de Pinna, M.C.C. (1989)
A new scarcoglanidine catfish, phylogeny of its subfamily, and an appraisal of the phyletic status of the Trichomycterinae (Teleostei, Trichomycteridae)
Zuanon, J. and Sazima, I. (2004)
Natural history of Stauroglanis gouldingi (Siluriformes: Trichomycteridae), a miniature sand-dwelling candiru from central Amazonian streamlets
Zuanon, J., Bockmann, F.A. and Sazima, I. (2006)
A remarkable sand-dwelling fish assemblage from central Amazonia, with comments on the evolution of psammophily in South American freshwater fishes
Adriaens, D., Baskin, J.N. and Coppens, H. (2010)
Evolutionary morphology of trichomycterid catfishes: about hanging on and digging in
Fernandez, L., Arroyave, J. and Schaefer, S.A. (2021)
Emerging patterns in phylogenetic studies of trichomycterid catfishes (Teleostei, Siluriformes) and the contribution of Andean diversity