California Gillnet Fishery Logbooks and Observer Data

Three distinct fleets of gillnet vessels operating within 200 miles of the U.S. west coast are documented. The data includes vessel information, logbooks, fish size, and landings for fleets targeting halibut, angel sharks, white sea bass, yellowtail, swordfish, and thresher sharks. Observer data is available from the large-mesh drift gillnet fleet, and the dataset is owned by CDFW and jointly managed by CDFW and SWFSC.

Use Cases

• Analyze catch composition and target species based on fleet-specific fishing gear and methods.
• Assess fishery landings and economic yield based on vessel logbook and landing data.
• Evaluate fishery observer program effectiveness based on observer data from the large-mesh drift fleet.
• Model spatial fishing patterns based on operations within 200 miles of the U.S. west coast.

Strengths

• Data covers three distinct fleets with specific target species.
• Includes observer data from the large-mesh drift gillnet fleet.
• Managed jointly by two authoritative agencies: CDFW and SWFSC.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Data is provided in PDF format, which may hinder direct computational analysis.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

National Oceanic and Atmospheric Administration, Department of Commerce

Collection Method

Likely collected from vessel logbooks and fishery observer programs.

Freshness

Last updated 2026-03-14 23:06:00.277850; freshness should be verified.

Geography

Within 200 miles of the U.S. west coast, mainly waters off California.