Demersal Trawl Catch Data from Celtic Sea Light Trial in 2017
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Description
October and November 2017 data from 22 parallel demersal fishing trawls off southwest England. The dataset contains numbers and lengths of retained catch, and a sample of discarded catch for select species including haddock, grey gurnard, whiting, megrim, and Northern squid. It was collected by the Government Digital Service to explore the effect of artificial light on catches.
Use Cases
Analyze the effect of artificial light on catch composition based on the trial described.
Compare retained versus discarded catch rates for the five listed species.
Model species-specific length distributions from the catch data mentioned in the description.
Strengths
Data covers 22 parallel trawls, providing a basis for comparative analysis.
Includes specific measurements for five named fish and cephalopod species.
Focuses on a controlled experiment with a defined temporal scope (October-November 2017).
Limitations
Column-level documentation is absent; field semantics must be inferred after download.
Row count is unknown, which may limit suitability assessment.
Data may reflect geographic and temporal bias inherent to the single trial in the Celtic Sea.
Provenance
Source
Government Digital Service
Collection Method
Collected from a trial of demersal fishing trawls equipped with artificial lights.
Time Range
October and November 2017
Freshness
Last update date is unknown; freshness unverified.
Geography
Celtic Sea, off southwest England
License is unknown; terms of use must be verified before application.