Aquaculture engineering--underwater cameras in aquaculture part 2: monitoring fish feeding

摘要

For many years aquaculture was like a black box. Organisms were placed into a tank, net, or open sea, and over time they were harvested. What the organisms did throughout the period was of little concern for the grower unless they did not eat or grow. The black box approach started to disappear when video surveillance cameras became widely available and economical in the early 1990s, and since then, the knowledge obtained by the use of the cameras has increased growth and decreased costs. In a previous article, the uses of underwater video cameras in aquaculture for predator surveillance, fish sizing, fish counting, and general health inspection were described. This article will focus on the use of underwater cameras to monitor and control feeding.The focus of this article will reflect my personal experience on salmonids in cages. Cameras may, however, be used in tanks and for other types of fishes.