| Summary: | 碩士 === 國立臺灣海洋大學 === 海洋事務與資源管理研究所 === 100 === The marine capture fisheries in Vietnam are small scale, multi-species, multi-gear and open access regime. Under many incentives program from the government, the Vietnamese fishing fleet (of which the gillnet segment consists more than 30% in quantity) expand rapidly, beyond control. Therefore, manage the capacity of those fleets is necessary. The purpose of this study is to analysis economic performance in the year 2010 of the Da Nang gillnet fishery and provide management suggestions.
Data were obtained from 45 gillnetters in Da Nang city by questionnaire through a survey conducted from April to July 2011. The results showed that the gross revenue and profit of the total fleet were 1,161.2 miilion VND (60,795.8 USD) and 139.8 million VND (7,319 USD), respectively. Fuel and labor were main costs among operating expenses, consisting of 44% and 26%, respectively. The study also showed that the large vessel (engine 90 hp) group had better economic performance than the small vessel group (engine < 90 hp); particularly, the small vessel group showed a negative profit in the operating year (-0.4% gross revenue).
Through data envelopment analysis, results showed that though the Da Nang gillnet fishery operated profitably in the year 2010, yet they did not operate at full capacity since the unused capacity and the technical inefficiency were about 21% and 10%, respectively. In addition, there was less fishing vessels operated efficiently since they overused or used inefficiently variable inputs. The over-use of fuel, net sheets, and days at sea in the large vessel group were 7%, 10%, and 3%, respectively; whereas these ratio in the small ones were 7%, 3%, and 7%, respectively.
It was suggested that overcapacity may be decomposed into a part resulting from technically optimal use of inputs, a part resulting from enhancing the current policies; hence, the study proposed some policy implications to the fisheries managers. These feasible policies may include restricting access control (limited entry and territorial use right), implementing buyback (to small vessels and unprofitable vessels), reviewing subsidies programs (fuel, loans), as well as implementing new regulations to control vessels’ input uses.
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