# Fishes of the upper rio Paraná basin: diversity, biogeography and conservation

*PRI Rank #3 · Topics and Trends in Most Cited Fish Biology and Ecology Studies Papers, Class of 2026*

*Canonical URL: https://pri.pepkio.com/top-papers/fish-biology-and-ecology-studies/2026/rank-3*

| Field | Value |
| --- | --- |
| Rank | #3 |
| 18m citations | 37 |
| Journal | Neotropical Ichthyology |
| Year | 2024 |
| DOI | 10.1590/1982-0224-2023-0066 |
| Corresponding authors | Fernando César Paiva Dagosta |
| Institution | Universidade Federal da Grande Dourados, Brazil |

**Ranking page:** [Topics and Trends in Most Cited Fish Biology and Ecology Studies Papers, Class of 2026](https://pri.pepkio.com/top-papers/fish-biology-and-ecology-studies/2026)

**Paper link:** [10.1590/1982-0224-2023-0066](https://doi.org/10.1590/1982-0224-2023-0066)

## Topics

upper rio Paraná basin · Neotropical fish assemblages · biogeographical patterns · Loricariidae · Characidae · endemic species distribution · dam construction impacts · invasive fish species · native species identification · biogeographical regions · species richness patterns · peripheral endemism · endangered fish taxa · non-native species establishment · protected area effectiveness · Habitat degradation · historical biogeography · Basin connectivity · threatened species conservation · taxonomic diversity patterns

## Cite this ranking

```
Pepkio Research Index (PRI). Topics and Trends in Most Cited Fish Biology and Ecology Studies Papers, Class of 2026. https://pri.pepkio.com/top-papers/fish-biology-and-ecology-studies/2026. Accessed 2026-07-21.

Zheng Su, Tinsley Li, Thematic Shifts in Early-High-Impact Cancer Genomics and Diagnostics Research: A Bibliometric and Semantic Analysis. bioRxiv 2026.07.04.736459; doi: https://doi.org/10.64898/2026.07.04.736459
```