Abstract
In order to examine the directional suitability of the axis direction of the ‘V’-shaped bamboo-weir (a kind of set-net for catching anchovy) against the current, its structures near and below the sea surface were measured from January 2000 to September 2001 in Samchunpo water area, Korea. The results of the study are as follows: The range between two reference steel piles, the length of the left wing and the right wing of the fishing gear were 2.5 m, 106.6 m, and 79.0 m, respectively. The axis direction of the gear was 355.5°. An underwater ‘V’-shaped stone wall (height: 2-5 m; width: 10-25 m at 6 m depth contour) being based on the steel piles and black oak posts of the wings and sack part was set on the sea floor (about 5-10 m depth of water). The measured maximum speed and average direction of current were 80.0 cm/s, and 169.2°, respectively. In the results of the numerical model, a curvature shaped wing being most similar to the real thing was shown less eddy in the other two other wing shapes. It was found that the experimental fishing gear was set suitably.
