CIRO 2/80: North Sea Groundfish Survey with Catch and Biological Data

From January 26 to February 18, 1980, the survey collected data from 159 stations in the North Sea aboard the Cirolana. It was undertaken by Cefas as part of the International Bottom Trawl Survey, recording station, catch, length, and biological data for 49 species. Additional aims included the collection of benthic, water temperature, salinity, and litter data.

Use Cases

• Modeling historical groundfish population distributions based on catch data from 159 stations.
• Analyzing species composition and biodiversity from records of 49 different species caught.
• Studying environmental correlations using collected benthic, water temperature, and salinity data.
• Investigating marine litter prevalence as part of the survey's additional data collection aims.

Strengths

• Clear temporal coverage from January 26 to February 18, 1980.
• Operations were undertaken on 159 stations, providing spatial breadth.
• Records data for 49 different species caught, indicating multi-species coverage.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Last update date is unknown; freshness unverified.

Provenance

Source

Cefas (Centre for Environment, Fisheries and Aquaculture Science), part of the International Bottom Trawl Survey.

Collection Method

Research vessel survey using Frame Trawl ISAAC-KIDD and Otter Trawl GOV Long Wing equipment.

Time Range

1980-01 26 to 1980-02-18

Freshness

Historical data from 1980; no update frequency indicated.

Geography

North Sea