CV16022 Aran"Porcupine Nephrops Under Water TV (UWTV) Survey 2016

Published by: Marine Institute
Category: Environment
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Annual Nephrops Galway Bay (Aran) and Porcupine Underwater television (UWTV) Survey undertaken by Marine Institute. This survey took place in June 2016 on board the R.V. Celtic Voyager. Nephrops is a genus of lobsters comprising a single extant species Nephrops norvegicus (the Norway lobster or Dublin Bay prawn). It is common around the Irish coast occurring in geographically distinct sandy"muddy areas where the sediment is suitable for them to construct their burrows. The Nephrops fishery is extremely valuable. Underwater television surveys and assessment methodologies have been developed to provide a fishery independent estimate of stock size, exploitation status and catch advice. This was a multi-disciplinary survey collecting UWTV, fishing, Conductivity, Temperature and Depth (CTD) and other ecosystem data. 34 UWTV stations were successfully completed on the Aran Grounds, 7 on Galway Bay, 4 on Slyne Head patches and 65 on the Porcupine Bank Nephrops grounds. 1.To obtain 2016 quality assured estimates of Nephrops burrow densities from a randomised isometric grid of UWTV stations at 6 nautical mile spacing over the known spatial a bathymetric distribution of the Porcupine Nephrops stock. 2. To obtain 2016 quality assured estimates of Nephrops burrow densities from a randomised isometric grid of UWTV stations at 4 nautical mile spacing on the “Aran” Nephrops ground. 3.To carry out UWTV indicator stations on the Galway Bay and on the Slyne Head Nephrops ground. 4.To collect ancillary information from the UWTV footage collected at each station such as the occurrence of sea-pens, other macro benthos and fish species and trawl marks on the sea bed. 5.To collect oceanographic data using a sledge mounted CTD. 6.To sample Nephrops and macro benthos using a 4 m beam trawl deployed at stations on the Aran Grounds

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Theme Environment
Date released 2018-01-24
Date updated 2022-12-13
Dataset conforms to these standards See the referenced specification
Rights notes {"While every effort is made in preparing the dataset no responsibility is accepted by or on behalf of the Marine Institute for any errors, omissions or misleading information. The Marine Institute accepts no responsibility for loss or damage occasioned or claimed to have been occasioned, in part or in full, as a consequence of any person acting, or refraining from acting as a result of a matter contained in this datasets or as a consequence of using this dataset for any purpose whatsoever.","A Creative Commons (CC) license is one of several public copyright licenses that enable the free distribution of an otherwise copyrighted work. A CC license is used when an author wants to give people the right to share, use, and build upon a work that they have created. Under Creative Commons CC BY 4.0 the following is grantedRights:  Share — copy and redistribute the material in any medium or format Adapt — remix, transform, and build upon the material for any purpose, even commercially.The licensor cannot revoke these freedoms as long as you follow the license terms.Requirements Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.",CC%20BY%204.0,CC%20BY%204.0}
Update frequency Other
Language English
Geographic coverage in GeoJSON format {"type":"Polygon","coordinates":[[[-14.448766, 51.306531],[-14.448766, 53.293748], [-9.045176, 53.293748], [-9.045176, 51.306531], [-14.448766, 51.306531]]]}
Spatial Reference Systems (SRS) WGS 84 (EPSG:3857)
Provenance information Data supplied by Marine Institute.
Period of time covered (begin) 2016-06-09
Period of time covered (end) 2016-06-18