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November 20, 2025Marine and Freshwater Research

Spatial and temporal variation of fish eggs and larvae in a cascade of small hydropower plants in south-eastern Brazil

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Authors

EBEduardo Meneguzzi BrambillaABAndréa BialetzkiFPFábio Porto-Foresti

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Overview

Observational analysis shows increased ichthyoplankton during rainfall in reservoirs, indicating critical areas for fish stocks.

Key Points

  • Higher ichthyoplankton density observed during rainfall events, indicating ecological dynamics in reservoirs.
  • The analysis reported 5004 fish eggs and 3189 larvae from diverse ichthyoplankton populations.
  • Water sampling occurred biweekly during the spring-summer months among three small hydropower plants.
  • Findings highlight the importance of conservation actions for fish stocks in the Sapucaí-Mirim River.

Cite This Study

Brambilla et al. (2025) studied this question.

synapsesocial.com/papers/6924f084c0ce034ddc35040chttps://doi.org/10.1071/mf24182
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Spatial and temporal patterns of ichthyoplankton assemblages across a large flow-regulated Amazonian river system2026
  2. 2Ichthyoplankton dynamics in the Brazilian Pantanal: Contribution of an important tributary and maintenance of connectivity2024
  3. 3DNA Barcoding Reveals a Critical Spawning Ground in the Paranapanema River Basin, Southern Brazil2025
  4. 4ICHTHYOPLANKTON COMMUNITY IN LAGOONS OF THE TAPAJÓS AND TROMBETAS RIVERS, EASTERN AMAZON2022 · 2 citations
  5. 5Determining the Diversity and Environmental Structuring of Fish Larvae in an Amazonian Coastal Protected Estuary2026 · 1 citations