Pacific Marine Ecological Classification System for Northern and Southern Shelf Bioregions

Fisheries and Oceans Canada provides a geospatial classification system for the Pacific marine environment, comprising 5 distinct layers. These layers include predicted biophysical units from random forest analysis, probability assignment layers, species assemblage clusters, and geomorphic units. The data results from a two-step analytical process involving species composition cluster analysis and random forest predictive modeling.

Use Cases

• Map predicted biophysical units (Level 4A and 4B) from random forest analysis to visualize distinct ecological regions.
• Analyze the probability assignment layer (Biophysical_Units_ProbAssign_L4AB) to assess model confidence in biophysical unit predictions.
• Use the species assemblage cluster layer (Cluster_L4AB) to study relationships between biological communities and geomorphic units.
• Integrate geomorphic units data (e.g., plateaus, ridges, canyons) with biophysical units for habitat and conservation planning.

Strengths

• Includes 5 distinct, thematically rich geospatial layers for comprehensive ecological analysis.
• Built on a documented two-step methodology combining cluster analysis and random forest modeling.
• Covers the Canadian Pacific continental shelf and slope, integrating work from 2016 and 2022.

Limitations

• No explicit row or column count is provided, making the dataset's scale and granularity unclear.
• Sample data is unavailable, preventing preview of attribute table structure or values.
• The description is truncated, potentially omitting details on data validation or uncertainty measures.

Provenance

Source

Fisheries and Oceans Canada

Collection Method

Two-step process: cluster analysis of species composition followed by random forest analysis to identify environmental correlates and predict assemblages.

Freshness

Last updated March 24, 2026, indicating recent maintenance.

Geography

Canadian Pacific continental shelf and slope, covering the Northern Shelf Bioregion and Southern Shelf Bioregion.