APPLICABILITY OF MANEGEMENT SYSTEM ON SCHEME OF DUMPING BLOCKS FROM BARGE IN CONSTRUTING ARTIFICIAL FISHING MOUND

Abstract

  The artificial fishing mound (AFM) is constructed in deepwater by dumping a large amount of rubble from hopper barge to expand the fishing ground by uplifting the eutrophied water with the upwelling current generated on the mound. In order to construct a designed geometry of AFM accurately and effectively, the operation management for the discharge position of barge, which is taken the transfer displacement of the falling rubble into consideration, is required. The slope-angle of mound calculated by author's previous simulation model on the deposition configuration of rubble dumped from barge was marginally steeper than field measurements. In this study, the simulation model is improved to estimate the slope-angle of mound in the field, the practical applicability of the management system on positioning of the barge with new simulation model is finally verified by the field experiments.