Documents | Seafish

Interactions between Bottlenose Dolphin and Midwater Pair Trawls: Effect of Pingers on Dolphin Behaviour

Seafish Coverless Prawn Trawl Design & Construction Guidance Notes

Seafish Coverless Prawn Trawl Design & Construction Guidance Notes.

Catch comparison of Quad and Twin-rig trawls in the Celtic Sea Nephrops fishery

This project aimed to compare catch compositions between Quad and Twinrig trawls to further investigate the performance of the Quad-rig in the Celtic Sea.

Discard collection study comparing the SFIA designed nephrops trawl against commercial trawls

The latest exercise conducted under this programme has concentrated on a slightly different approach to the preceding work on by-catch reduction devices.

Preliminary trials of a new scallop dredge in the Isle of Man

Preliminary trials of a new scallop dredge in the Isle of Man.

Reducing Seabed Contact of Trawling: Design and model test of a semi-pelagic shrimp trawl for the pink shrimp fishery

Design and model test of a semi-pelagic shrimp trawl for the pink shrimp fishery.

C43 Bass Lured Long Lines

This report describes work carried out on the North coast of Devon trialling a long line system using a range of artificial lures for bass; its evolution from conception to a full commercial application.

Thames Sole Selectivity

This work was part of the UK’s Fisheries Science Partnership (FSP).

Trials to assess the potential for nephrops trawls with low headline heights (less than 1m) in reducing whitefish by-catch

A report on the trials held to assess whether whitefish by-catch could be reduced in the Nephrops trawl fishery by using low headline Nephrops trawls.

Separator trawls as a tool for improving selectivity for cod

This paper describes the results of comparative fishing trials, under commercial conditions, using a standard trawl and a separator traw. The target species in the fishing area were cod, haddock, whiting, lemon sole and plaice. The separator trawl was fitted with a 120mm lower codend; the upper codend and that on this standard net were 100mm. The trials involved about 90 paired tows over a period of 10 weeks. This report has been produced from a scanned original and may therefore contain some formatting and other inaccuracies. In cases where this affects the technical content, a paper copy of the original report can still be obtained from Seafish.

Degritting of King Scallops

Dredged scallops are known to contain ‘grit’ in the form of sand, silt, mud or broken shell. Although washed out in processing, this contamination limits the marketability of these scallops as a ‘live’ product and detracts from their value in comparison with scallops landed by divers. The initial part of this work has confirmed the considerable extent of grit contamination of commercially harvested scallops and that it is effectively removed in the production of a processed product by shucking and washing the meat, but it has also shown that the eating quality of ‘gritty’ scallops deteriorates rapidly if held unprocessed in the shell. This report has been produced from a scanned original and may therefore contain some formatting and other inaccuracies. In cases where this affects the technical content, a paper copy of the original report can still be obtained from Seafish.

Project 50%

In 2009–10, an innovative partnership between scientists and Devon beam trawlermen – nicknamed ‘Project 50%’ – was set-up with an aim to help to protect fish stocks by reducing the amount of juvenile fish discarded overboard by over 50%.

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