CORY 9/95: 1995 Irish Sea and Bristol Channel Groundfish Survey Data

Cefas conducted the CORY 9/95 survey between 24/08/1995 and 18/09/1995 as part of the North West Groundfish Survey. The dataset includes station, catch, length, and biological data from 159 stations, where 82 different species were caught using 4m beam trawls and a CTD profiler. Data were collected to create abundance indices for EU regulations and ICES research, with additional aims for benthic, litter, temperature, salinity, and acoustic data.

Use Cases

• Calculate fish stock abundance indices based on catch and length data.
• Analyze species composition and biodiversity across 159 survey stations.
• Model relationships between environmental variables like water temperature/salinity and species presence.
• Support fisheries management and policy assessment for EU data regulations.

Strengths

• Survey operations were undertaken on 159 stations, providing spatial coverage.
• 82 different species were recorded, indicating biodiversity sampling.
• Data collection followed a standardized protocol using defined equipment like a 4m beam trawl and CTD.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment for large-scale modeling.
• Last update date is unknown; freshness unverified as data is from a single survey in 1995.

Provenance

Source

Centre for Environment, Fisheries & Aquaculture Science (Cefas), aggregated by Government Digital Service.

Collection Method

Research vessel survey using 4m beam trawls and a Vertical Profiler CTD Type 8770.

Time Range

24/08/1995 to 18/09/1995

Freshness

Data is from a single survey conducted in 1995.

Geography

Irish Sea and Bristol Channel