東京湾口における集団操業漁船と船舶交通

概要

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For the purpose of studying the effect of the masses of pole and line fishing boats and the fishing boats used for leisure at work upon the vessel traffic, the marine traffic survey was carried out by both visual and a radar in entrance sea area of the Tokyo Bay from first to second of July, 1983. The results can be summerized as follows: 1, The masses with high density of pole and line fishing boats and fishing boats used for leisure are formed upon the natural reefs off the Cape Tsurugi at daytime in summer. 2, When the masses of fishing boats at work are present in the vessel traffic flows, the flows separate and shift. And the index of encounter frequency (I_<en>) increases by 30 percent. 3, The clearance distance of the vessels underway from fishing boats at work is very small. About 33 percent of all clearance distance, converted one into ship length L, are less than 1.0 L.
社団法人日本航海学会の論文
1985-09-20