Updated range distribution of the non-native Asian green mussel Perna viridis (Linnaeus, 1758) at Guanabara Bay, Rio de Janeiro, Brazil
2024

Spread of the Asian Green Mussel in Guanabara Bay, Brazil

Sample size: 19 publication 10 minutes Evidence: moderate

Author Information

Author(s): Luciana V. R. de Messano, José E. A. Gonçalves, Alexandre D. Kassuga, Alexandre R. da Silva, Bruno P. Masi, Héctor F. Messano, Denny Fardin, Ricardo Coutinho

Primary Institution: Instituto de Estudos do Mar Almirante Paulo Moreira, Arraial do Cabo, Rio de Janeiro, Brazil

Hypothesis

How has the distribution of the non-native Asian green mussel Perna viridis changed in Guanabara Bay?

Conclusion

The study found that the Asian green mussel has proliferated in Guanabara Bay, indicating a significant bioinvasion event.

Supporting Evidence

  • The survey identified a total of 83 taxa, including 15 non-native species.
  • Perna viridis was recorded at 17 sites, indicating its widespread presence.
  • The ecological niche modeling predicted high suitability for P. viridis in Brazilian coastal areas.

Takeaway

Scientists looked at how a new type of mussel is spreading in a bay in Brazil, and they found it is growing quickly and taking over.

Methodology

The study involved a rapid assessment of sessile species across 19 sites in Guanabara Bay using scuba dives and ecological niche modeling.

Limitations

The study may not account for all environmental factors affecting mussel distribution.

Digital Object Identifier (DOI)

10.7717/peerj.18649

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