Data from: Lack of genetic differentiation in yellowfin tuna has conservation implications in the Eastern Pacific Ocean
Data files
Jan 08, 2026 version files 6.45 GB
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MD5SUMS
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README.md
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Abstract
Yellowfin tuna, Thunnus albacares, is an important global fishery and of particular importance in the Eastern Pacific Ocean (EPO). According to the 2019 Inter-American Tropical Tuna Commission (IATTC) assessment, yellowfin tuna within the EPO is a single stock, and is being managed as one stock. However, previous studies indicate site fidelity, or limited home ranges, of yellowfin tuna which suggests the potential for multiple yellowfin tuna stocks within the EPO, which was supported by a population genetic study using microsatellites. If numerous stocks are present, management at the wrong spatial scales could cause the loss of minor yellowfin tuna populations in the EPO. In this study we used double digestion RADseq to assess the genetic structure of yellowfin tuna in the EPO. A total of 164 yellowfin tuna from Cabo San Lucas, México, and the Galápagos Islands and Santa Elena, Ecuador, were analysed using 18,011 single nucleotide polymorphisms. Limited genetic differentiation (FST = 0.00058–0.00328) observed among the sampling locations (México, Ecuador, Peru, and within Ecuador) is consistent with presence of a single yellowfin tuna population within the EPO. Our findings are consistent with the IATTC assessment and provide further evidence of the need for transboundary cooperation for the successful management of this important fishery throughout the EPO.
Access this dataset on Dryad: Dataset DOI link
This dataset contains raw high-throughput sequencing data generated for the study "Lack of genetic differentiation in yellowfin tuna has conservation implications in the Eastern Pacific Ocean", published in PLOS ONE (https://doi.org/10.1371/journal.pone.0272713). The data consist of unprocessed sequencing reads used as the basis for the population genetic analyses reported in the article.
Description of the data and file structure
This dataset consists of gzipped FASTQ files only.
FASTQ files
A collection of gzipped FASTQ files (.FASTQ.gz), spanning IDs 1424793–1424946.
The numeric IDs are not continuous and there are breaks in the sequence. This is expected, as the identifiers reflect sequencing facility–assigned file or library IDs rather than a strictly sequential series. The file manifest in this Dryad submission (the complete list of uploaded FASTQ files) represents the full and verified set of files included.
Each FASTQ file contains raw sequencing reads generated from a single sequencing library. Files follow the standard FASTQ format, in which each read is represented by four lines: a read identifier, the nucleotide sequence, a separator line, and Phred-scaled quality scores.
The FASTQ files contain raw, unfiltered sequencing output. No quality trimming, adapter removal, alignment, or variant calling has been applied. Sequencing artifacts and low-quality reads may be present. There are no custom missing-data codes or abbreviations beyond standard FASTQ conventions.
The submission contains 98 gzipped FASTQ files in total. Downstream bioinformatic processing and population genetic analyses derived from these data are described in the associated publication.
MD5SUMS
This file contains MD5 checksums for all FASTQ files included in the submission and is provided to allow users to verify file integrity after download. The checksums were generated at the time of data preparation and do not represent additional processed data or analysis outputs.
Sharing/Access information
Links to other publicly accessible locations of the data:
- Not applicable
Data was derived from the following sources:
- Muñoz-Abril, L. et al. (2022). Lack of genetic differentiation in yellowfin tuna has conservation implications in the Eastern Pacific Ocean. PLOS ONE. https://doi.org/10.1371/journal.pone.0272713
Code/Software
No code or software files are included in this Dryad submission. Bioinformatic processing and population genetic analyses were conducted outside of Dryad and are described in the associated publication.