Bluntnose Sixgill Shark Genomic Data from Salish Sea, 274 Samples Over 16 Years

274 tissue samples from bluntnose sixgill sharks (Hexanchus griseus) were opportunistically collected in the Salish Sea over a 16-year timespan. Shawn Larson authored this genomic dataset, which was last updated on 2026-04-23. The data provides insights into genetic diversity, population structure, and breeding site philopatry for this near-threatened deep-water species.

Use Cases

• Analyze genetic diversity and population structure based on genomic sequencing data mentioned in the description
• Investigate breeding site philopatry and relatedness patterns based on kinship analyses across years
• Study polyandrous mating strategies based on evidence of multiple paternity in litters
• Model critical habitat use for conservation planning based on the identification of a known nursery ground

Strengths

• 274 tissue samples provide a substantial sample size for genetic analysis
• Data collection spans a 16-year timespan, allowing for temporal studies
• Genomic sequencing was performed, offering high-resolution genetic data
• Focus on a specific, critical nursery habitat (Salish Sea) provides geographic specificity

Limitations

• Column-level documentation is absent; field semantics must be inferred after download
• Row count is unknown, which may limit suitability assessment
• Data is contained in a DOCX file (971.5 KB), which may not be a standard format for genomic data and could require extraction

Provenance

Source

figshare

Collection Method

Opportunistic collection of tissue samples followed by genomic sequencing

Time Range

Samples collected over a 16-year period

Freshness

Last updated 2026-04-23 04:21:34; freshness should be verified

Geography

Salish Sea (encompassing Washington State, USA and British Columbia, Canada)