Loses Estimate of Aquaculture under Flooding- Yunlin County as an Example

• Main Authors: Wen-Hsien Cheng, 鄭文賢
• Other Authors: Ching-Chun Chen
• Format: Others
• Language: zh-TW
• Published: 2005
• Online Access: http://ndltd.ncl.edu.tw/handle/94368528849339254258

碩士 === 國立臺灣海洋大學 === 應用經濟研究所 === 93 === The operation of aquaculture is greatly affected by natural disasters and the environment. Natural disasters usually cause heavy losses for fishermen. The main concern of this thesis is to estimate the extent of the damages in aquaculture resulting from flood and to offer suggestions for improving the operation of aquaculture and protecting the livelihood of fishermen. Considering the regional characteristics, we focus on the Yunlin County to estimate the losses in this thesis. The estimation is based on the data of fish pound distribution and the number of fish placed. Using the result of the inundation potential analysis, we analyze inundated situation of the fishponds under the various precipitation. This thesis also estimates the losses concerning the cost and profit in aquaculture due to flooding by analyzing the seasonal variations of the aquatic product price. The estimated results are then compared to the actual loss of the 0702 floods in 2004, so as to test its reliability. Under the simulated inundating condition at the precipitation of 300mm per day, the estimated amount of aid required to salvage the aquaculture in Yunlin County is about NT$77,858,000, which is slightly bigger than the actual amount. Under the same condition, the estimated loss of operation cost was about NT$239,152,000, approximately 3 times of the amount of aid. We use the total loss in revenue, i.e., the loss in cost and profit combined, as a measure of the direct loss. The estimated direct loss in aquaculture is about NT$ 263,145,000, which is about 1.1 times of the loss in cost. In order to strengthen the ability to protect the fishery against natural hazards and to improve operating efficiency of the disaster notification and investigation system, we assess the present disaster aid system and related laws and regulations at various stages (including mitigation, preparedness, response, and recovery). Based on our estimation, we further present short-term and long-term measures against natural disasters and make a few suggestions.