1977 Eastern Irish Sea Groundfish Survey Catch Data from the Silver Star

1977 catch data from a series of groundfish surveys conducted on the fishing vessel Silver Star in the eastern Irish Sea. The data records numbers at length by centimetre for main commercial fish species and includes station positions by area. The surveys were carried out by the Government Digital Service.

Use Cases

• Analyzing historical fish population size structure based on the recorded numbers at length.
• Mapping species distribution and abundance based on the recorded station positions.
• Studying changes in commercial fish stocks over time as part of a longer time series.
• Modeling trawl survey catch efficiency for the Boris Goshawk trawl gear mentioned.

Strengths

• Data is part of a multi-year time series from 1976 to 1991, providing temporal context.
• Includes specific spatial information with station positions recorded by area.
• Focuses on main commercial fish species, which are of high interest for fisheries management.

Limitations

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

Provenance

Source

Government Digital Service

Collection Method

Surveys carried out using a Boris Goshawk trawl towed for an hour.

Time Range

1977

Freshness

Historical data from 1977; last update is unknown.

Geography

Eastern Irish Sea