10.14466/CEFASDATAHUB.24
Englehard, Georg
Georg
Englehard
Georg Englehard
North Sea Historical Effort by Rectangle by Month: 1913 -1980
Cefas Laboratory, UK
2016
Historical Fisheries Data
Fish abundance in water bodies
Analysis
Management
Monitoring
Stock (biological)
Species
Englehard, Georg
Georg
Englehard
Georg Englehard
Brown, Mary
Mary
Brown
Mary Brown
Davison, Phil
Phil
Davison
Phil Davison
Pattison, David
David
Pattison
David Pattison
Angelus, Suzanne
Suzanne
Angelus
Suzanne Angelus
Dale, Susan
Susan
Dale
Susan Dale
Dann, Michelle
Michelle
Dann
Michelle Dann
1913
1981
2016
en
.CSV
1
Public data (Crown Copyright) - Open Government terms and conditions apply
This dataset includes long-term, spatially detailed information on UK trawl and seine fishing effort in the North Sea, by month and ICES rectangle. The period covered is 1927,1937, 1947, 1957, 1967 and 1977. Effort data (number of hours fishing) are shown separately for each of the major historical demersal trawling and seining fleets of the UK: sailing trawlers (pre-WWII only), steam trawlers (until the 1970s), motor trawlers, steam seiners (pre-WWII only), and motor seiners. These data were digitised from historical ‘Statistical Charts’ formerly produced by Cefas (then the Directorate of Fisheries Research [DFR]). For a catalogue providing a full description and metadata of the charts, including historical context, see Engelhard (2005): http://webarchive.nationalarchives.gov.uk/20150203151336/http:/www.cefas.defra.gov.uk/publications-and-data/scientific-series/technical-reports/technical-report-128.aspx. The gear used on all sailing trawlers was the wooden beam trawl. All steam and motor trawlers during the time period covered used otter trawls. The gears used on seiners were either ‘Danish seines’ or ‘Scottish seines.’ A DataReadme.csv file is included to describe the variables within the dataset. In order to QA the raw data, variety of queries in R were used, that allowed tabulation and plotting of the data. Blank values in data = N/A