Multiple tools to investigate the origin of the exotic species Chinook salmon <scp> <i>Oncorhynchus tshawytscha</i> </scp> ( <scp>W</scp> albaum, 1792) ( <scp>S</scp> almonidae) in the world's largest chocked coastal lagoon
Salmonid species have increasingly been established in South America for aquaculture and recreational fishing purposes. This study provides the first scientific record of the Chinook salmon (Oncorhynchus tshawytscha) in the Patos Lagoon (32°S), the world's largest choked coastal lagoon. The specimen was a female with 770 mm (total length), 3992.1 g, estimated age of 6 years and an advanced sexual maturation stage. Based on multiple tools (DNA barcoding, stable isotopes in eye lens, otolith growth layers and egg's histological analysis), we discussed potential entry routes for this species into the lagoon.
Authors
- Antônio Sérgio Varela (ORCID: https://orcid.org/0000-0003-4901-5118)
- João P. Vieira (ORCID: https://orcid.org/0000-0002-0669-9444)
- Mário V. Condini (ORCID: https://orcid.org/0000-0003-4917-7782)
- Cristiano Albuquerque (ORCID: https://orcid.org/0000-0001-8432-6021)
- Sabrina Radunz Vollrath (ORCID: https://orcid.org/0000-0002-5409-4220)
- Rodrigo Ferreira Bastos (ORCID: https://orcid.org/0000-0002-9692-4237)
- Ana Paula Cazerta Farro (ORCID: https://orcid.org/0000-0002-3536-1653)
- Maurício Hostim‐Silva (ORCID: https://orcid.org/0000-0001-5061-9125)
- Alexandre Garcia (ORCID: https://orcid.org/0000-0002-8479-4199)
- Fabiano Corrêa
- Mylla Carla Cescon Freire (ORCID: https://orcid.org/0000-0002-1889-2858)
- Valéria M. Lemos (ORCID: https://orcid.org/0000-0003-1813-4982)
- Yan Gonçalves Gowert (ORCID: https://orcid.org/0000-0002-6516-4781)
Institutions
- Universidade Federal do Rio Grande (BR)
- Centro Universitário do Norte (BR)
- Universidade Estadual do Maranhão (BR)
- Universidade Federal do Espírito Santo (BR)
- Universidade Federal Rural do Semi-Árido (BR)
- University of Rio Grande and Rio Grande Community College (US)
Publication Details
- Journal
- Journal of Fish Biology
- Published
- 2025-07-20
- DOI
- https://doi.org/10.1111/jfb.70151
- Citations
- 2
- Primary Topic
- Isotope Analysis in Ecology
- Type
- article
- Field-Weighted Citation Impact
- 3.43
Funders
- Conselho Nacional de Desenvolvimento Científico e Tecnológico