Ökologie des Cardinal-Tetra Paracheirodon axelrodi (Pisces, Characoidea) im 
Stromgebiet des Rio Negro/Brasilien sowie zuchtrelevante Faktoren

Geisler, Rolf; Annibal, Sergio A.

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Ökologie des Cardinal-Tetra Paracheirodon axelrodi (Pisces, Characoidea) im Stromgebiet des Rio Negro/Brasilien sowie zuchtrelevante Faktoren

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Citation

Geisler, R., & Annibal, S. A. (1984). Ökologie des Cardinal-Tetra Paracheirodon axelrodi (Pisces, Characoidea) im Stromgebiet des Rio Negro/Brasilien sowie zuchtrelevante Faktoren. Amazoniana: Limnologia et Oecologia Regionalis Systematis Fluminis Amazonas, 9(1), 53-86.

Cite as: https://hdl.handle.net/21.11116/0000-0004-71A5-2

Abstract

This paper covers the ecological development of the major ornamental fish Paracheirodon axelrodi
found in rain forest streams (almost "clear-water") in the region of the middle and upper Rio Negro.
Limnochemical conditions in these extremely nutrient-poor waters during both the low and high water
seasons over the spawning period, as well as breeding conditions in captivity, are described.
A comparison is made between the very slow rate of growth and limited age reached as a result of
a food deficiency in its natural habitat, and the potential growth if bred under optimum feeding conditions.