18S Monterey Bay Time Series: Marine eDNA Data from 2006 and 2013-2016

Monterey Bay, California, is the source for this marine environmental DNA dataset from filtered seawater samples. It contains metabarcoding data for the 18S V9 region, processed through pipelines including Atropos and DADA2, with taxonomic assignment via BLASTn against NCBI GenBank. The data was contributed by Francisco P. Chávez of the Monterey Bay Aquarium Research Institute and supports a 2020 Nature Communications publication on seasonal community shifts.

Use Cases

• Analyze seasonal shifts in marine eukaryotic communities based on the time-series sampling mentioned in the description.
• Study potential species interactions within a nearshore ecosystem based on co-occurrence data from the metabarcoding results.
• Benchmark eDNA metabarcoding and taxonomic assignment pipelines based on the detailed processing workflow described.
• Investigate spatial-temporal biodiversity patterns in Monterey Bay based on the location and multi-year sampling.

Strengths

• Data is linked to a peer-reviewed publication in Nature Communications (Djurhuus et al., 2020).
• Taxonomic assignments use stringent filters (≥97% identity for species, ≥95% for genus) as described.
• Data is structured using standardized Darwin Core and DNA Derived Data Extension terms.
• Processing details for Illumina MiSeq data are explicitly documented, including specific software versions.

Limitations

• Row count and overall dataset size are unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• The temporal coverage is discontinuous, with samples from 2006 and 2013-2016.

Provenance

Source

Monterey Bay Aquarium Research Institute

Collection Method

Samples collected by CTD rosette and filtered by peristaltic pump, followed by Illumina MiSeq metabarcoding and bioinformatic processing.

Time Range

2006, 2013-2016

Geography

Nearshore station in Monterey Bay, California, USA