04289014c3ba769ff22ccc4e52671969 English dataset Agri-Food and Biosciences Institute Project manager dassh.enquiries@mba.ac.uk pointOfContact 2019-01-10 MEDIN Discovery metadata standard 2.3.8 urn:ogc:def:crs:EPSG::4326 By-catch from Annual AFBI Irish Sea and North Channel King Scallop Dredge Research Surveys 2016 - 2018 2019-01-10 publication afbiNIKSD This dataset contains information on bycatch of non-target species from the Annual AFBI Irish Sea and North Channel King Scallop Dredge Research Surveys. This survey occurs in the Pecten maximus grounds off the North Coast and County Down coast. The primary objectives of this research surveys series are: • To study spatial variability in population structure and abundance of scallop (Pecten maximus) and queen scallop (Aequipecten opercularis) and by-catch species. • To obtain information on temporal trends of population structure of the two target species. The Research survey was carried out on R.V. Corystes. 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. Agri-Food and Biosciences Institute Project manager dassh.enquiries@mba.ac.uk originator Agri-Food and Biosciences Institute Project manager dassh.enquiries@mba.ac.uk custodian annually Marine Environmental Data and Information Network Species distribution GEMET - INSPIRE themes, version 1.0 2008-01-06 revision Fishing by-catch SeaDataNet P021 parameter discovery vocabulary 2009-11-16 revision no conditions otherRestrictions no restrictions 50 English biota Charting Progress 2 Sea Areas 2009-06-18 creation Minches & Western Scotland International Hydrographic Bureau, Limits of Oceans and Seas 1954-01-01 creation Inner Seas off the West Coast of Scotland International Hydrographic Bureau, Limits of Oceans and Seas 1954-01-01 creation Irish Sea and St. George's Channel ICES Statistical Areas 2014-05-16 creation VIIa ICES Statistical Areas 2014-05-16 creation VIa -6.8786 -5.2017 53.9649 55.3824 2013-08-02 2018-08-02 Agri-Food and Biosciences Institute Project manager dassh.enquiries@mba.ac.uk distributor dataset MEDIN data guideline for fish and benthos data by trawl and dredge 2011-02-02 publication See the referenced specification true This dataset contains a time series (2016 –2018) of bycatch data from the annual AFBI King Scallop dredge research survey. It should be noted that the species of primary concern of this research survey was the King Scallop (Pecten maximus); and as such the survey design, sampling protocol and technical equipment were designed to maximise the recording of this species. Over the course of the time series there has been adjustments to survey design, sampling protocol, survey staff and technical equipment in response to changing requirements and latest novel developments in survey equipment. Individual cruise reports written by the Scientist in Charge of (S.I.C.) of each research survey are maintained by AFBI and summarise the survey design, sampling protocol, survey staff and technical equipment of each survey and are available on request. The below protocol outlines a general overview of the sampling protocol of the research survey. A bespoke survey report outlined the specification Prior to each research survey, a random number generator generates stations which are to be sampled from the survey grid. Four commercial sized dredges (74.5 cm by 37 cm) are deployed at each station and towed at approximately 2.5 knots for 30 minutes. A fine mesh liner was attached to one of the four dredges to retain small benthic fauna. Catches were sorted and the associated fauna identified and counted.