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September 10, 2025Acta Scientiarum Biological SciencesOpen Access

Size and diet of Oreochromis niloticus in an urban drainage channel in Santos, State of São Paulo, Brazil

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Authors

JCJoão Henrique Alliprandini da CostaRMRafael MirandaBDBruno Paes De-Carli

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Overview

Observational analysis reveals dietary habits and size variations in oreochromis niloticus in Santos, indicating urban adaptation.

Key Points

  • The study shows significant seasonal variations in size among oreochromis niloticus, reflecting ecological dynamics.
  • Sampling of 56 fish indicated a stable sex ratio of 1:1 and notable reproductive activity linked to rainfall.
  • Population dynamics were assessed with a focus on diet, revealing a strong preference for detritus in murky waters.
  • Health conditions of the fish remained stable despite intra-annual variations in size and diet composition.

Cite This Study

Costa et al. (2025) studied this question.

synapsesocial.com/papers/68c192459b7b07f3a061677chttps://doi.org/10.4025/actascibiolsci.v47i1.74221
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