Environmental DNA Monitoring of Fish and Invertebrates in the Eastern Shore Islands AOI

Annual eDNA surveys from 2026 provide baseline and ongoing monitoring data for fish and invertebrate communities in the Eastern Shore Islands Area of Interest. The dataset, published by Fisheries and Oceans Canada, uses water sampling and metabarcoding with genetic markers like 12S and COI to characterize biodiversity across inshore to offshore transects. It covers a 2089 km2 coastal area extending along 100 km of coastline in the Maritimes Region.

Use Cases

• Establishing baseline species richness and community composition for fish and invertebrates based on eDNA metabarcoding.
• Monitoring annual changes in biodiversity across inshore-offshore transects within the Area of Interest.
• Comparing eDNA-derived biodiversity data with traditional survey methods like the Summer multi-species RV survey.
• Investigating fish and invertebrate community structure in offshore areas less than 100m deep, where traditional surveys have limited coverage.

Strengths

• Covers a large coastal area of interest spanning 2089 km2 and 100 km of coastline.
• Uses a non-invasive, efficient sampling method capable of characterizing both fish and invertebrate diversity from small water volumes.
• Employs multiple genetic markers (e.g., 12S and COI) to improve taxonomic identification.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and sample size are unknown, which may limit suitability assessment.
• The dataset's temporal coverage begins in 2026; historical context for the area is not provided.

Provenance

Source

Coastal Ecosystems Science Division, Maritimes Region, Fisheries and Oceans Canada, Dartmouth NS.

Collection Method

Environmental DNA (eDNA) metabarcoding from water samples collected across inshore to offshore transects.

Time Range

Annual surveys starting from 2026.

Freshness

Last updated 2026-04-08 18:30:54.950598; freshness should be verified.

Geography

Eastern Shore Islands Area of Interest in the Maritimes Region, Canada, covering offshore areas less than ~100m depth.