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Formal report series, containing results of research and monitoring carried out by Marine Scotland Science

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UK Open Government Licence (OGL)

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Trials to Assess the Effects of Bobbin Groundgear and a 200 mm Square Mesh Panel to Reduce Unwanted By-Catches in the Commercial Nephrops Fishery

Scottish Marine and Freshwater Science Vol 8 No 3

The Gear Innovation and Technology Advisory Group (GITAG) funded trials to assess whether the unwanted by-catch of round and flatfish could be reduced in the Nephrops trawl fishery using a modified Nephrops trawl incorporating 200mm bobbins and a 200mm square mesh panel. Catches of Nephrops and monkfish remained consistent with that of a standard commercial Nephrops trawl. There were significant reductions in relative catch rates of cod and larger haddock (>25cm) and whiting (>28cm). There was no significant difference between the two trawls for haddock below 24cm and for whiting below 27cm. There was a significant reduction in the quantities of smaller common dab (<19cm) and long rough dab (<21cm) that were caught when using the modified trawl. However, significantly more larger plaice above 30cm were retained by the modified trawl.

doi: 
10.7489/1934-1
Citation: 
M Kinghorn, J Dooley, A Edridge, R F Kynoch and F G O’Neill (2017) Trials to Assess the Effects of Bobbin Groundgear and a 200 mm Square Mesh Panel to Reduce Unwanted By-Catches in the Commercial Nephrops Fishery. Scottish Marine and Freshwater Science Vol 8 No 3, 18pp. DOI: 10.7489/1934-1

Dataset Info

These fields are compatible with DCAT, an RDF vocabulary designed to facilitate interoperability between data catalogs published on the Web.
FieldValue
Publisher
Modified Date
2017-06-20
Release Date
2017-06-15
Identifier
96d7f5a1-9e4a-4974-9484-5a006ddf6e89
Spatial / Geographical Coverage Location
Scotland
Temporal Coverage
Tuesday, May 24, 2016 - 00:00 to Tuesday, May 31, 2016 - 00:00
License
UK Open Government Licence (OGL)
Data Dictionary

The Zenith BF106, a 24.85m 500kW, twin rig stern trawler was chartered for the selectivity trials. The charter ran for 7 days from 24th to 31st of May 2016. Catch comparison trials, using the twin trawl method, were carried out on commercial fishing and Nephrops grounds 50 miles north of Fraserburgh in the North Sea (ICES area IVa). The species mix at the fishing grounds consisted of haddock, whiting, cod, a variety of flatfish and Nephrops.

Contact Name
Marine Scotland Science
Contact Email
Public Access Level
Public