Substratum choice for nesting in male Nile tilapia Oreochromis niloticus
Francine Zocoler de Mendonça, G. L. Volpato, Roselene S. Costa-Ferreira, Eliane Gonçalves‐de‐Freitas
Abstract
Francine Zocoler de Mendonça, G. L. Volpato, Roselene S. Costa-Ferreira, Eliane Gonçalves‐de‐Freitas
Abstract
Four substrata were offered to groups of adult Nile tilapia Oreochromis niloticus (one male and two females) simultaneously: pure sand, a mixture of sand and shells, stones and no substratum. The results showed that males chose to dig nests in a lighter and more homogeneous substratum.
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Four substrata were offered to groups of adult Nile tilapia Oreochromis niloticus (one male and two females) simultaneously: pure sand, a mixture of sand and shells, stones and no substratum. The results showed that males chose to dig nests in a lighter and more homogeneous substratum.
Key concepts: Oreochromis, Nile tilapia, Biology, Nesting (process), Homogeneous, Fishery, Fish <Actinopterygii>, Zoology