Community Research and Development Information Service - CORDIS

Need to develop new tools to measure skin pigmentation in farmed fish and under farm conditions

During the project a wide list of quality parameters have been evaluated, most of them related with the external appearance of the fish, since this is one of the most relevant quality indicator (skin appearance, abdomen colour, shape and colour of the eyes, colour and brightness of the skin....The fish were harvested, packed in ice and transported to the laboratory in order to perform all the measurements with sofisticated and appropiate laboratory equipment. The transport conditions were set to be standard for all the shipment, although not always possible, the fish deteriorate their aspect during transport (24-48 h) and in some cases, due to slaughtering methodology and/or transport misshandeling, the fish arrived in very poor conditions, sometimes not even suitable to go under QIM evaluation due to the external deterioration. The development of the standard, simple, robust equipment to be used in situ in the fish farm, just upon fish harvest, could give a much better, realistic and standardized method to measure fish skin colour and skin brightness, which are the main parameters to be evaluated by the consumer when the farmed fish in the market.

In all the trials done during this project, the transport of the fish has been the main handicap for skin colour studies, playing a main role the distance of the fish farm from the analytical laboratory.

Reported by

Universidad de Cadiz
C/Ancha, 16
11001 Cadiz
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