Multiple tools to investigate the origin of the exotic species Chinook salmon Oncorhynchus tshawytscha ( W albaum, 1792) ( S almonidae) in the world's largest chocked coastal lagoon

2025/07/20 by Yan Gonçalves Gowert, Valéria M. Lemos, Fabiano Corrêa +10 · 1 voice
Biochemistry, Genetics and Molecular Biology · Environmental Science · #Identification and Quantification in Food #Isotope Analysis in Ecology #Marine and fisheries research

paper · pdf · doi:10.1111/jfb.70151

openalex publication_date 2025/07/20 · openalex created_date 2025/07/21 · openalex updated_date 2026/08/01

Abstract

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.

Citations

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Discussions

• #JFB: Multiple tools to investigate the origin of the exotic species Chinook Salmon 𝘖𝘯𝘤𝘰𝘳𝘩𝘺𝘯𝘤𝘩𝘶𝘴 𝘵𝘴𝘩𝘢𝘸𝘺𝘵𝘴𝘤𝘩𝘢 (Walbaum, 1792) (Salmonidae) in the world's largest chocked coastal [bsky, 0 points, 0 comments]

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