By-catch from AFBI Irish Sea Nephrops Trawl Research Surveys 1994 - 2018

• Availability: Not released
• Published by: Marine Environmental Data & Information Network
• Last updated: 10 January 2019
• Topic: Not added
• Licence: Other Licence ; View licence information

Summary

This dataset contains information on bycatch of non-target species from the AFBI Nephrops Trawl Research Survey series between 1994 – present from surveys carried out in the Irish Sea. The primary objectives of this research surveys series are: • To study spatial variability in population structure and abundance of Nephrops and by-catch species. • To obtain information on temporal trends of population structure of Nephrops. • To study female maturity in Nephrops. Between 1994 – 2010 the Research Survey was carried out on a bi-annual basis in the spring and autumn of each year. During each of these research surveys between 18 - 32 stations were primarily sampled using a nephrops otter trawl net; similar to that used in the commercial fishery. In addition, at select number of stations, various net types were used to sample for a comparison between nets. Each sampled station comprises a 3-mile trawling lane. Towing speed across the ground varies with tide and weather a target speed of 3 knots is aimed where possible.
From 2010 – present, the research survey was carried out on an annual basis in summer of each year (July/August) whereby sampling occurred at c. 24 fixed stations.

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Additional information

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• Added to data.gov.uk: 2019-01-10
• Access contraints: no restrictions
• Harvest GUID: ae63c009044bf2f46c742920d1a6bbc3
• Extent: Latitude: 54.8612° to 53.3839°
• Extent: Longitude: -6.1592° to -2.7361°
• Spatial reference system: urn:ogc:def:crs:EPSG::4326
• Dataset reference date: 2019-01-10 (publication)
• Frequency of update: annually
• Responsible party: Agri-Food and Biosciences Institute (originator, custodian)
• ISO 19139 resource type: dataset
• Metadata language: eng
• Source Metadata: XML
• Source Metadata: HTML

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