The mechanism of fishing was clarified for salmon drift gill net of the northern sea at fishing course. The method of obtaining a new original fishing selection curve from a dynamic condition when the fish was maintained in a mesh was designed, and the factor that influenced the fishing selection by the numerical analysis was investigated. The relation between a size and a proper diameter of the mesh of the gill net was examined. The analysis of the fishing mechanism of shell dredge that caught the shell dove in sand and lived was advanced, the probability model by which the shell did not get out from the packing part and the bag net part was set, and selected curve of shell dredge was presumed.
Journal of Fisheries Engineering 41 (3), 181-188, 2005
The Japanese Society of Fisheries Engineering