Documents | 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.

Board Minutes - 27 September 2023

Minutes from the Seafish board meeting held on 27 September 2023.

A Steady State Control Program to Minimise Fuel Consumption for a Vessel Using a Controllable Pitch Propellor

This study shows how the correct settings of propeller pitch and engine speed may obtain the minimum fuel consumption for a required propellor thrust and ship speed. The possible fuel savings are investigated using an optimising steady state control system based on a specific fishing vessel. 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

Online Elementary Food Hygiene Segment Two: A more detailed look at bacteria

This is the second segment of the written learning materials for the Elementary Food Hygiene (online) training programme.

Blue Whiting Processing Trials at Stornaway, Spring 1976 (draft only)

This report describes blue whiting processing trials carried out at Stornoway in the Outer Hebrides in the Spring of 1976. The exercise was a joint project between the Highland and Islands Development Board, Torry Research Station, and the White Fish Authority. The main objective was to test the feasibility of landing blue whiting in fresh condition at a port close to the fishing grounds, processing it for human consumption and supply processors and friers with frozen fillets for trial work and marketing. 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.

A Report on the UK Herring Fisheries in the 1980s

The British herring fishery has declined dramatically since the early part of the century. The ban in 1977 was a result of indiscriminate overfishing by all fishing nations in the post war period. Now that the ban has been eased, the Common Fisheries Policy sets out the UK quota clearly and in this there are opportunities for development of a more stable UK herring fishery. 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

Blue Whiting Processing Trials Stornaway 1977

The almost universal adoption of 200 mile fishing limits has resulted, to a large extent, in the exclusion of our distant water fishing fleet from their usual fishing grounds, and consequently in a shortage of traditionally acceptable fish such as cod and haddock. This shortage has caused a predictable series of price increases, and shown a need to exploit non-traditional species such as blue whiting, which can be caught in large quantities around our own coast and within the EEC controlled fishing areas. Blue Whiting (Micromesistius poutassau) is a small white fish, a member of the cod family, which congregates in large quantities to the north west of the UK during its springtime spawning season. Throughout the remainder of the year the blue whiting stock disperses throughout the north Atlantic. Estimates of the stock vary between 8 and 12 million tonnes, of which 2 million tonnes could be harvested annually without damaging the stock. Despite increasing fishing activity by foreign vessels, fishing mainly for fishmeal, the stock still remains virtually unexploited. 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.

Market Test of a Range of Pacific Oyster Products

Six frozen Pacific oyster products, the most promising of those developed in earlier White Fish Authority trials, were test marketed in two stages in 1974 and 1975 under the brand name, Oyster Bay. It was unfortunate that the timing of the campaign, although logical in the progression of the project, coincided with the onset and early stages of the economic depression, as one of the main reasons put forward for lack of interest by the caterers was that of price. Perhaps the major reason for the disappointing level of acceptability, however, was the overall lack of familiarity with cooked oyster products although it was encouraging to note the response to the products when this was overcome. It was also encouraging to record that fresh oysters in the shell are regarded favourably and until the quantity of UK-grown Pacific oysters increase substantially to bring production costs down in order that the processed products become economically viable, the White Fish Authority recommend that growers concentrate their efforts into stimulating demand for Pacific oysters sold in the shell in local restaurants and hotel, particularly during the holiday season. 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.

Investigations on Non-Returnable Box Properties

This report details the experimental results of thermal and handling trials carried out on the present range of non-returnable wet fillet box materials used in the UK. A general survey of the packaging distributions environment is also included. 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

Operation of Blue Whiting Surimi Plant - Stornoway April/May

Industrial Development Unit staff working in conjunction with technologists for the Japanese company, Nippon Suisan Kaisha Limited (NSK), have recently completed a trials programme in which Blue Whiting (Micromesistius Poutassau) was processed into Surimi, using specialised equipment installed in the Rolf Olsen fish processing plant at Stornoway. The product has since been sent to Japan for marketing trials (which will be attended by IDU staff) during 1978. 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.

Assessment of Blue Whiting Acceptability in Institutions

These acceptability trials were commenced in September 1975 using blue whiting from the catch off the Artic Privateer which were processed into block fillets in Aberdeen (AIS Report 146). They were continued in 1976 using block fillets processed in Stornoway (AIS Report 171) and extended in 1977 to include single skin-on fillets processed in Stornoway. In each case the blue whiting block fillets were battered and deep fried – the normal method of preparing fish in the hospital or school concerned. Unless specific questions were asked neither the hospital staff nor the school children participating in the trials were informed that the fish species being served to them was blue whiting. The results obtained suggest that provided the fish are suitably size-graded, blue whiting prepared in this way represents an acceptable product to institutional diners who would normally choose fish. 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.

Exploratory Voyage by DET 'Swanella'

In the Autumn of 1973 the diesel electric stern trawler SWANELLA was chartered on behalf of the Ministry of Agriculture, Fisheries and Food for an exploratory fishing voyage in deep water to the West and North West of the British Isles. The areas in question have not hitherto been exploited by commercial fishing vessels but in the twelve months prior to SWANELLA’s voyage they had been surveyed in part by fishery Research Vessel CIROLANA. 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.

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