Blue Crab Genetic Population Structure from Atlantic and Gulf of Mexico Coasts

Joseph E. Neigel from the University of Louisiana at Lafayette investigated genetic population structure in blue crabs (Callinectes sapidus). The dataset comprises genotypes for 1446 individuals sampled from 2010 to 2016 at 2486 SNPs across 1363 putative protein-coding loci. Sampling was most intensive in five Louisiana estuaries, with collections of megalopae, juveniles, and adults.

Use Cases

• Assess genetic differentiation between locations based on SNP data
• Investigate temporal genetic variation among years within a species
• Test for chaotic genetic patchiness or sweepstakes reproductive success in marine populations
• Study gene flow and genetic homogeneity across a large geographic range
• Analyze relatedness among sampled individuals within a high gene flow species

Strengths

• 1446 individuals genotyped provides a substantial sample size
• 2486 SNPs across 1363 loci offer high-resolution genetic markers
• Sampling spans multiple life stages (megalopae, juveniles, adults) and years (2010-2016)

Limitations

• Column-level documentation is absent; field semantics must be inferred after download
• Row count is unknown, which may limit suitability assessment
• Last update date is unknown; freshness unverified

Provenance

Source

University of Louisiana at Lafayette

Collection Method

Genetic sampling and SNP genotyping of blue crabs from Atlantic and Gulf of Mexico coasts.

Time Range

2010 to 2016

Geography

Atlantic and Gulf of Mexico coasts of North America, with intensive sampling in five Louisiana estuaries.