Lack of genetic differentiation in yellowfin tuna has conservation implications in the Eastern Pacific Ocean

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..., , # Data from: Lack of genetic differentiation in yellowfin tuna has conservation implications in the Eastern Pacific Ocean

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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](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.

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## 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 stri...,