. Commercial fisheries review. Fisheries; Fish trade. When he completely releases the foot pedal, he closes the whole system, as in (A), leaving it ready for the next sequence. At a more advanced stage of development, the entire sequence can be made completely automatic and adapted to the special needs of individual vessels. In measuring the performance of vacuum evisceration, we found that a fish could be cleaned and flushed in about 10 seconds dur- ing continuous operation. Thus, one man can eviscerate and flush: Ifish/lOsec. X3, = ADVANTAGES OF VAC
. Commercial fisheries review. Fisheries; Fish trade. When he completely releases the foot pedal, he closes the whole system, as in (A), leaving it ready for the next sequence. At a more advanced stage of development, the entire sequence can be made completely automatic and adapted to the special needs of individual vessels. In measuring the performance of vacuum evisceration, we found that a fish could be cleaned and flushed in about 10 seconds dur- ing continuous operation. Thus, one man can eviscerate and flush: Ifish/lOsec. X3, = ADVANTAGES OF VACUUM EVISCERATION Vacuum evisceration and flushing provide these advantages: 1. The crew size of larger vessels canbe reduced by 3 men, resulting in more income per man. Also, this mechanization releases to other vessels experienced men, who are in short supply. 2. The equipment canbe placed in such a manner that the men can work in a convenient 41 sitting or standing position, instead of a tiring, bent-over, position. 3. Safer working conditions can be pro- vided because no fish or offal would be de- posited on deck causing dangerous, slippery footing. 4. Bacterial contamination can be reduced because the fish do not have to be cut. Also important, the visceral contents are effec- tively removed from the processing area. The quality of fish landed in port should there- fore be improved. 5. The landing of higher quality fish can result in economic advantages, which benefit both industry and consumer. NOTE ON INSTALLATION AND OPERATION Because of our limited knowledge of the costs of equipment, fabrication, and services, we can only estimate the cost of the vacuum eviscerator. We believe it would be in the order of $5,000. Although the prototype was tested at sea, it has not been used for any extended period. We therefore cannot esti- mate down times and maintenance costs, but present indications are that these units will be relatively trouble free. INFLATABLE SKIRTS FOR HOVERCRA
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