Arctic Lyre Crab Commercial Catch Data from the St. Lawrence, 2002-2021

Fisheries and Oceans Canada collected biological data on Arctic Lyre Crab (Hyas coarctatus) from commercial catches in the Estuary and Gulf of St. Lawrence. The dataset includes metadata, sample weight, specimen weight, shell width, shell state, claw height, and sex for a 20-year period from 2002 to 2021. Data was gathered at wharves or at sea by specialized DFO staff to support stock assessments and demographic studies.

Use Cases

• Modeling population demography based on specimen weight and sex data.
• Analyzing growth patterns based on shell width and claw height measurements.
• Assessing stock structure over time using the 20-year temporal coverage.
• Studying shell condition and health indicators based on shell state records.

Strengths

• Covers a 20-year time series from 2002 to 2021.
• Includes multiple biological measurements per specimen: weight, shell width, claw height, and sex.
• Data collection was conducted by specialized government staff (DFO) for scientific assessment.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Data has been simplified and some entries excluded to protect confidentiality, which may affect spatial and temporal granularity.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

Fisheries and Oceans Canada

Collection Method

Sampling of commercial catches at wharves or at sea by specialized DFO staff.

Time Range

2002-2021

Freshness

Last updated 2026-03-24 08:40:02.140039; freshness should be verified.

Geography

Estuary and northern Gulf of St. Lawrence, Canada